Overview
overview
10Static
static
100014c57bfd...3b.exe
windows10-1703-x64
100014c57bfd...3b.exe
windows10-2004-x64
10660e3fcc23...81.exe
windows10-1703-x64
7660e3fcc23...81.exe
windows10-2004-x64
79dc5600bed...30.exe
windows10-1703-x64
109dc5600bed...30.exe
windows10-2004-x64
10Acwpn.exe
windows10-1703-x64
10Acwpn.exe
windows10-2004-x64
7DHL SHIPPI...DF.exe
windows10-1703-x64
10DHL SHIPPI...DF.exe
windows10-2004-x64
10Halkbank_E...f..exe
windows10-1703-x64
10Halkbank_E...f..exe
windows10-2004-x64
10INVOICEXAN...LS.rtf
windows10-1703-x64
1INVOICEXAN...LS.rtf
windows10-2004-x64
1Maersk Shi...cs.exe
windows10-1703-x64
10Maersk Shi...cs.exe
windows10-2004-x64
10ORDER INQU...01.exe
windows10-1703-x64
10ORDER INQU...01.exe
windows10-2004-x64
10PO-8372929.xls
windows10-1703-x64
1PO-8372929.xls
windows10-2004-x64
1QUOTATION 1.rtf
windows10-1703-x64
1QUOTATION 1.rtf
windows10-2004-x64
1Quotation.rtf
windows10-1703-x64
1Quotation.rtf
windows10-2004-x64
1e1cf593726...1b.exe
windows10-1703-x64
10e1cf593726...1b.exe
windows10-2004-x64
10macintosh.xlsx
windows10-1703-x64
1macintosh.xlsx
windows10-2004-x64
1Resubmissions
01-02-2023 17:02
230201-vj6p3aah39 1001-02-2023 17:00
230201-vjf5eacg4s 1001-02-2023 16:57
230201-vgbrxacg2y 10Analysis
-
max time kernel
600s -
max time network
512s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01-02-2023 17:02
Behavioral task
behavioral1
Sample
0014c57bfd62d2929bbad91d67b77c3b.exe
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
0014c57bfd62d2929bbad91d67b77c3b.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral3
Sample
660e3fcc23c3a833e6e8af22b13ebd81.exe
Resource
win10-20220901-en
Behavioral task
behavioral4
Sample
660e3fcc23c3a833e6e8af22b13ebd81.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral5
Sample
9dc5600bedda76a29aa0e33da951fc30.exe
Resource
win10-20220812-en
Behavioral task
behavioral6
Sample
9dc5600bedda76a29aa0e33da951fc30.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral7
Sample
Acwpn.exe
Resource
win10-20220812-en
Behavioral task
behavioral8
Sample
Acwpn.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral9
Sample
DHL SHIPPING DOC PDF.exe
Resource
win10-20220812-en
Behavioral task
behavioral10
Sample
DHL SHIPPING DOC PDF.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral11
Sample
Halkbank_Ekstre_20230129_075423_612150o.pdf..exe
Resource
win10-20220901-en
Behavioral task
behavioral12
Sample
Halkbank_Ekstre_20230129_075423_612150o.pdf..exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral13
Sample
INVOICEXANDXBANKXDETAILS.rtf
Resource
win10-20220812-en
Behavioral task
behavioral14
Sample
INVOICEXANDXBANKXDETAILS.rtf
Resource
win10v2004-20221111-en
Behavioral task
behavioral15
Sample
Maersk Shipping Docs.exe
Resource
win10-20220812-en
Behavioral task
behavioral16
Sample
Maersk Shipping Docs.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral17
Sample
ORDER INQUIRY 20230201.exe
Resource
win10-20220812-en
Behavioral task
behavioral18
Sample
ORDER INQUIRY 20230201.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral19
Sample
PO-8372929.xls
Resource
win10-20220812-en
Behavioral task
behavioral20
Sample
PO-8372929.xls
Resource
win10v2004-20220901-en
Behavioral task
behavioral21
Sample
QUOTATION 1.rtf
Resource
win10-20220812-en
Behavioral task
behavioral22
Sample
QUOTATION 1.rtf
Resource
win10v2004-20221111-en
Behavioral task
behavioral23
Sample
Quotation.rtf
Resource
win10-20220812-en
Behavioral task
behavioral24
Sample
Quotation.rtf
Resource
win10v2004-20221111-en
Behavioral task
behavioral25
Sample
e1cf59372694c7d46d84d0139b40d41b.exe
Resource
win10-20220812-en
Behavioral task
behavioral26
Sample
e1cf59372694c7d46d84d0139b40d41b.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral27
Sample
macintosh.xlsx
Resource
win10-20220901-en
Behavioral task
behavioral28
Sample
macintosh.xlsx
Resource
win10v2004-20221111-en
General
-
Target
Halkbank_Ekstre_20230129_075423_612150o.pdf..exe
-
Size
461KB
-
MD5
51505dd088beb3a3406dab4bcfc0090b
-
SHA1
7efb628f6b348b0f19360241f3f0661419617bc7
-
SHA256
5f16e8c1fef7f5f311b814b10f7b9e9b1ec3c204075fb8bb48ac207e256ea208
-
SHA512
dc05dc73895114c6025c986d696a3a6044c26f2e6e2c5863c33a7806461033f99ae2dbae153cdf1c1d2b93ee9686bddf98d2b58759e13aef923dbf0635e3166c
-
SSDEEP
12288:GENN+T5xYrllrU7QY62YrTNbwcD/xtDmpfJuB3:K5xolYQY62YrZ0nfs5
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
explorer.exesvchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" svchost.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
Processes:
explorer.exesvchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe -
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral12/memory/4328-187-0x0000000000400000-0x000000000043A000-memory.dmp family_snakekeylogger -
Executes dropped EXE 8 IoCs
Processes:
halkbank_ekstre_20230129_075423_612150o.pdf..exe iauwp.exeicsys.icn.exeexplorer.exespoolsv.exesvchost.exespoolsv.exeiauwp.exepid process 4764 halkbank_ekstre_20230129_075423_612150o.pdf..exe 1256 iauwp.exe 4276 icsys.icn.exe 4576 explorer.exe 4612 spoolsv.exe 540 svchost.exe 400 spoolsv.exe 4328 iauwp.exe -
Modifies Installed Components in the registry 2 TTPs 8 IoCs
Processes:
svchost.exeexplorer.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" explorer.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe -
Processes:
resource yara_rule behavioral12/memory/4328-187-0x0000000000400000-0x000000000043A000-memory.dmp upx -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
TTPs:
Processes:
iauwp.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 iauwp.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 iauwp.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 iauwp.exe -
Adds Run key to start application 2 TTPs 6 IoCs
Processes:
explorer.exesvchost.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" svchost.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
iauwp.exedescription pid process target process PID 1256 set thread context of 4328 1256 iauwp.exe iauwp.exe -
Drops file in Windows directory 6 IoCs
Processes:
explorer.exespoolsv.exesvchost.exeicsys.icn.exedescription ioc process File opened for modification \??\c:\windows\system\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\system\svchost.exe spoolsv.exe File opened for modification \??\c:\windows\system\explorer.exe explorer.exe File opened for modification \??\c:\windows\system\svchost.exe svchost.exe File opened for modification C:\Windows\system\udsys.exe explorer.exe File opened for modification \??\c:\windows\system\explorer.exe icsys.icn.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
icsys.icn.exeexplorer.exesvchost.exeiauwp.exepid process 4276 icsys.icn.exe 4276 icsys.icn.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 540 svchost.exe 540 svchost.exe 540 svchost.exe 540 svchost.exe 4576 explorer.exe 4576 explorer.exe 540 svchost.exe 540 svchost.exe 540 svchost.exe 540 svchost.exe 4576 explorer.exe 4576 explorer.exe 4328 iauwp.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 4576 explorer.exe 4576 explorer.exe 540 svchost.exe 540 svchost.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 4576 explorer.exe 540 svchost.exe 540 svchost.exe 4576 explorer.exe 4576 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
Processes:
explorer.exesvchost.exepid process 4576 explorer.exe 540 svchost.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
iauwp.exepid process 1256 iauwp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
iauwp.exedescription pid process Token: SeDebugPrivilege 4328 iauwp.exe -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
Halkbank_Ekstre_20230129_075423_612150o.pdf..exeicsys.icn.exeexplorer.exespoolsv.exesvchost.exespoolsv.exepid process 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe 4276 icsys.icn.exe 4276 icsys.icn.exe 4576 explorer.exe 4576 explorer.exe 4612 spoolsv.exe 4612 spoolsv.exe 540 svchost.exe 540 svchost.exe 400 spoolsv.exe 400 spoolsv.exe 4576 explorer.exe 4576 explorer.exe -
Suspicious use of WriteProcessMemory 55 IoCs
Processes:
Halkbank_Ekstre_20230129_075423_612150o.pdf..exehalkbank_ekstre_20230129_075423_612150o.pdf..exe icsys.icn.exeexplorer.exespoolsv.exeiauwp.exesvchost.exedescription pid process target process PID 4876 wrote to memory of 4764 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe halkbank_ekstre_20230129_075423_612150o.pdf..exe PID 4876 wrote to memory of 4764 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe halkbank_ekstre_20230129_075423_612150o.pdf..exe PID 4876 wrote to memory of 4764 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe halkbank_ekstre_20230129_075423_612150o.pdf..exe PID 4764 wrote to memory of 1256 4764 halkbank_ekstre_20230129_075423_612150o.pdf..exe iauwp.exe PID 4764 wrote to memory of 1256 4764 halkbank_ekstre_20230129_075423_612150o.pdf..exe iauwp.exe PID 4764 wrote to memory of 1256 4764 halkbank_ekstre_20230129_075423_612150o.pdf..exe iauwp.exe PID 4876 wrote to memory of 4276 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe icsys.icn.exe PID 4876 wrote to memory of 4276 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe icsys.icn.exe PID 4876 wrote to memory of 4276 4876 Halkbank_Ekstre_20230129_075423_612150o.pdf..exe icsys.icn.exe PID 4276 wrote to memory of 4576 4276 icsys.icn.exe explorer.exe PID 4276 wrote to memory of 4576 4276 icsys.icn.exe explorer.exe PID 4276 wrote to memory of 4576 4276 icsys.icn.exe explorer.exe PID 4576 wrote to memory of 4612 4576 explorer.exe spoolsv.exe PID 4576 wrote to memory of 4612 4576 explorer.exe spoolsv.exe PID 4576 wrote to memory of 4612 4576 explorer.exe spoolsv.exe PID 4612 wrote to memory of 540 4612 spoolsv.exe svchost.exe PID 4612 wrote to memory of 540 4612 spoolsv.exe svchost.exe PID 4612 wrote to memory of 540 4612 spoolsv.exe svchost.exe PID 1256 wrote to memory of 4328 1256 iauwp.exe iauwp.exe PID 1256 wrote to memory of 4328 1256 iauwp.exe iauwp.exe PID 1256 wrote to memory of 4328 1256 iauwp.exe iauwp.exe PID 540 wrote to memory of 400 540 svchost.exe spoolsv.exe PID 540 wrote to memory of 400 540 svchost.exe spoolsv.exe PID 540 wrote to memory of 400 540 svchost.exe spoolsv.exe PID 1256 wrote to memory of 4328 1256 iauwp.exe iauwp.exe PID 540 wrote to memory of 4820 540 svchost.exe at.exe PID 540 wrote to memory of 4820 540 svchost.exe at.exe PID 540 wrote to memory of 4820 540 svchost.exe at.exe PID 540 wrote to memory of 1268 540 svchost.exe at.exe PID 540 wrote to memory of 1268 540 svchost.exe at.exe PID 540 wrote to memory of 1268 540 svchost.exe at.exe PID 540 wrote to memory of 3256 540 svchost.exe at.exe PID 540 wrote to memory of 3256 540 svchost.exe at.exe PID 540 wrote to memory of 3256 540 svchost.exe at.exe PID 540 wrote to memory of 4248 540 svchost.exe at.exe PID 540 wrote to memory of 4248 540 svchost.exe at.exe PID 540 wrote to memory of 4248 540 svchost.exe at.exe PID 540 wrote to memory of 4908 540 svchost.exe at.exe PID 540 wrote to memory of 4908 540 svchost.exe at.exe PID 540 wrote to memory of 4908 540 svchost.exe at.exe PID 540 wrote to memory of 4840 540 svchost.exe at.exe PID 540 wrote to memory of 4840 540 svchost.exe at.exe PID 540 wrote to memory of 4840 540 svchost.exe at.exe PID 540 wrote to memory of 1648 540 svchost.exe at.exe PID 540 wrote to memory of 1648 540 svchost.exe at.exe PID 540 wrote to memory of 1648 540 svchost.exe at.exe PID 540 wrote to memory of 876 540 svchost.exe at.exe PID 540 wrote to memory of 876 540 svchost.exe at.exe PID 540 wrote to memory of 876 540 svchost.exe at.exe PID 540 wrote to memory of 1804 540 svchost.exe at.exe PID 540 wrote to memory of 1804 540 svchost.exe at.exe PID 540 wrote to memory of 1804 540 svchost.exe at.exe PID 540 wrote to memory of 3848 540 svchost.exe at.exe PID 540 wrote to memory of 3848 540 svchost.exe at.exe PID 540 wrote to memory of 3848 540 svchost.exe at.exe -
outlook_office_path 1 IoCs
Processes:
iauwp.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 iauwp.exe -
outlook_win_path 1 IoCs
Processes:
iauwp.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 iauwp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230129_075423_612150o.pdf..exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230129_075423_612150o.pdf..exe"Suspicious use of SetWindowsHookExSuspicious use of WriteProcessMemory
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\??\c:\users\admin\appdata\local\temp\halkbank_ekstre_20230129_075423_612150o.pdf..exec:\users\admin\appdata\local\temp\halkbank_ekstre_20230129_075423_612150o.pdf..exeExecutes dropped EXESuspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\iauwp.exe"C:\Users\Admin\AppData\Local\Temp\iauwp.exe" C:\Users\Admin\AppData\Local\Temp\iqvpwdmb.cExecutes dropped EXESuspicious use of SetThreadContextSuspicious behavior: MapViewOfSectionSuspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\iauwp.exe"C:\Users\Admin\AppData\Local\Temp\iauwp.exe"Executes dropped EXEAccesses Microsoft Outlook profilesSuspicious behavior: EnumeratesProcessesSuspicious use of AdjustPrivilegeTokenoutlook_office_pathoutlook_win_path
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C:\Users\Admin\AppData\Local\icsys.icn.exeC:\Users\Admin\AppData\Local\icsys.icn.exeExecutes dropped EXEDrops file in Windows directorySuspicious behavior: EnumeratesProcessesSuspicious use of SetWindowsHookExSuspicious use of WriteProcessMemory
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\??\c:\windows\system\explorer.exec:\windows\system\explorer.exeModifies WinLogon for persistenceModifies visiblity of hidden/system files in ExplorerExecutes dropped EXEModifies Installed Components in the registryAdds Run key to start applicationDrops file in Windows directorySuspicious behavior: EnumeratesProcessesSuspicious behavior: GetForegroundWindowSpamSuspicious use of SetWindowsHookExSuspicious use of WriteProcessMemory
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\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe SEExecutes dropped EXEDrops file in Windows directorySuspicious use of SetWindowsHookExSuspicious use of WriteProcessMemory
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\??\c:\windows\system\svchost.exec:\windows\system\svchost.exeModifies WinLogon for persistenceModifies visiblity of hidden/system files in ExplorerExecutes dropped EXEModifies Installed Components in the registryAdds Run key to start applicationDrops file in Windows directorySuspicious behavior: EnumeratesProcessesSuspicious behavior: GetForegroundWindowSpamSuspicious use of SetWindowsHookExSuspicious use of WriteProcessMemory
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\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe PRExecutes dropped EXESuspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\at.exeat 18:04 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:05 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:06 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:07 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:08 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:09 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:10 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:11 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:12 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
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C:\Windows\SysWOW64\at.exeat 18:13 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
Network
MITRE ATT&CK Matrix
Command and Control
Credential Access
Credentials in Files
3Discovery
System Information Discovery
1Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Privilege Escalation
Replay Monitor
Downloads
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C:\Users\Admin\AppData\Local\Temp\halkbank_ekstre_20230129_075423_612150o.pdf..exeFilesize
187KB
MD5c742b622a88a10779fe1673d751dc622
SHA12e1de5d8dbe6ade1af87ce06c31172d8c0a9baa8
SHA256480fb8507176e7ab166f14cdc41e7d2d887555a8327800e989a5b07ec4ac7a2b
SHA512c639ad738805b21617169a34da91fbba7a2b3a296e87cde799c2bda0f169742e8842160dd2bb89da37cdecdd2b17713165e33383e9f92179f5df2624c9bb4e96
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C:\Users\Admin\AppData\Local\Temp\iauwp.exeFilesize
80KB
MD582d9274bf661ed3fdb3d7e7d66efb9ba
SHA15f98a0699b92d2db63e4baa3c71920561bc49838
SHA256306c0a2b8efa7c76f69246bed00e98b1d8c012446abdf48f650d9d7343562c34
SHA512caf704dc43e4976a15a0bccb3ac6a7501d07c6d3855b6b3a1c9a69e1a6e3402548d61119229cdb34526a574cb44b988ac409155e1e308cf87112590aa10228f3
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C:\Users\Admin\AppData\Local\Temp\iauwp.exeFilesize
80KB
MD582d9274bf661ed3fdb3d7e7d66efb9ba
SHA15f98a0699b92d2db63e4baa3c71920561bc49838
SHA256306c0a2b8efa7c76f69246bed00e98b1d8c012446abdf48f650d9d7343562c34
SHA512caf704dc43e4976a15a0bccb3ac6a7501d07c6d3855b6b3a1c9a69e1a6e3402548d61119229cdb34526a574cb44b988ac409155e1e308cf87112590aa10228f3
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C:\Users\Admin\AppData\Local\Temp\iauwp.exeFilesize
80KB
MD582d9274bf661ed3fdb3d7e7d66efb9ba
SHA15f98a0699b92d2db63e4baa3c71920561bc49838
SHA256306c0a2b8efa7c76f69246bed00e98b1d8c012446abdf48f650d9d7343562c34
SHA512caf704dc43e4976a15a0bccb3ac6a7501d07c6d3855b6b3a1c9a69e1a6e3402548d61119229cdb34526a574cb44b988ac409155e1e308cf87112590aa10228f3
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C:\Users\Admin\AppData\Local\Temp\iqvpwdmb.cFilesize
6KB
MD52dc8af96232838d201200a49b0efa632
SHA150bc216ff603fdfefbf0ab04ff7ffea362278eb7
SHA256493f4e6b0acc7d4fe146d28857a37873ddaff27dba8b2491b4352db9a0eb9043
SHA512972be1e52ce1f83f414cf3eee27887eb8ccc294f08ca628300236c0147735bdec3e75ed50c313eba20536e51e3485d303a0495ee8caae8dc548ecbc438ff818c
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C:\Users\Admin\AppData\Local\Temp\robdkcso.djuFilesize
104KB
MD5c4a8e79b487d9f5076ba9235f17e7547
SHA11bf348776f2b90901abfaa9175a6effb4cd5954c
SHA256b0fa484010127572ef9d688662423a027031012298d8da401597243fdcf54bd9
SHA512d6543cae79e376e690225b3f0b1d3549c84d6c3eec2a8110186cc1e475640b0dd10b87421f8f40680f88210b4dd3d30a6b12c3398946c9245ab83e0848212d78
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C:\Users\Admin\AppData\Local\icsys.icn.exeFilesize
274KB
MD57bca1694aa035681f0ebd2b4f1ff1835
SHA1c88a597f9beb5ce96708fa79ff1fd7d4a73b1582
SHA256ee6f10c71ff99a3d2fea29a9992a8e30b8dd05acf7923d5072ecff6cad23d225
SHA512aa934486b3b68041ffc09f87b65c548bda122966b58ae0f9d68bbbdbbb2d17c543e51a9545ad09eff30b65459e99446bb066d2ea556de27cc25206ea1b07d185
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C:\Users\Admin\AppData\Local\icsys.icn.exeFilesize
274KB
MD57bca1694aa035681f0ebd2b4f1ff1835
SHA1c88a597f9beb5ce96708fa79ff1fd7d4a73b1582
SHA256ee6f10c71ff99a3d2fea29a9992a8e30b8dd05acf7923d5072ecff6cad23d225
SHA512aa934486b3b68041ffc09f87b65c548bda122966b58ae0f9d68bbbdbbb2d17c543e51a9545ad09eff30b65459e99446bb066d2ea556de27cc25206ea1b07d185
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C:\Users\Admin\AppData\Roaming\mrsys.exeFilesize
274KB
MD563c717ce8ada6566c353fe34b0ecf30b
SHA1d8d442fdcfa83c0b18fa8a51a0798d9ea791931c
SHA25616b7242428482f09e57c428733f6cb91f7789a3083b81f8bec2eca9410aae8b5
SHA5120b2a87e50705ab87cf5e6839fdb19d97b5922277c3e294441f7e82361d630cc5c073b36af65fcd9d41e9ba7dfc3725fba81f6adbdfc9394d0db072821cc5aede
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C:\Windows\System\explorer.exeFilesize
274KB
MD58836959724d810a8c00bd871c6f63e78
SHA101cb50e501722050a78f0168344bd4d981a83197
SHA256447c3f889a61f297e41fd8590d4f959b285733d1c3d67d30a6f46e04ce11deba
SHA512931f983e7a56f5e3bf5e232d987cfe3246ed97c8b8ef3d3068655ce24e7d6ab9046d47189d9630218df21827fd17b280ec98dbfd552ed9dfa3607a771f306d49
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C:\Windows\System\spoolsv.exeFilesize
274KB
MD504f0526d5f15d57319c5c98e2e9a07ce
SHA1162173ecee9a5ef0f141f00ff00e9646a5ccaf9d
SHA25655c21d7f7d35fd424b3dbe1def666abd66be8cd53f11f87b8ad4877d895341b2
SHA512bd504d3bda57fa18abf697d88998ef6bbb55ef3b920ca8858c45910295e008c7a00e2a10796f3a4c5c12eec5613ffa27b1189d655f5da9e4d1ec942cde0358f5
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C:\Windows\System\spoolsv.exeFilesize
274KB
MD504f0526d5f15d57319c5c98e2e9a07ce
SHA1162173ecee9a5ef0f141f00ff00e9646a5ccaf9d
SHA25655c21d7f7d35fd424b3dbe1def666abd66be8cd53f11f87b8ad4877d895341b2
SHA512bd504d3bda57fa18abf697d88998ef6bbb55ef3b920ca8858c45910295e008c7a00e2a10796f3a4c5c12eec5613ffa27b1189d655f5da9e4d1ec942cde0358f5
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C:\Windows\System\svchost.exeFilesize
274KB
MD5c10f6c20be07d7630a6b1dc6b0dfab47
SHA11bda4b0bbf42e3b80ca60d327ca6a879e3b50009
SHA2562df15d70dc2d77d5304efe10f6197056591efaacd746b3df12dd88dec26cdd15
SHA5123317daecb587693ac75a10220737ae75cec470e59b4e079c621617a3edec3a920d6073f561e6a25c648f78cc6e7b3637db5194c6ec04f0a9d73b2709d153218b
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\??\PIPE\atsvcMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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\??\c:\users\admin\appdata\local\temp\halkbank_ekstre_20230129_075423_612150o.pdf..exeFilesize
187KB
MD5c742b622a88a10779fe1673d751dc622
SHA12e1de5d8dbe6ade1af87ce06c31172d8c0a9baa8
SHA256480fb8507176e7ab166f14cdc41e7d2d887555a8327800e989a5b07ec4ac7a2b
SHA512c639ad738805b21617169a34da91fbba7a2b3a296e87cde799c2bda0f169742e8842160dd2bb89da37cdecdd2b17713165e33383e9f92179f5df2624c9bb4e96
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\??\c:\windows\system\explorer.exeFilesize
274KB
MD58836959724d810a8c00bd871c6f63e78
SHA101cb50e501722050a78f0168344bd4d981a83197
SHA256447c3f889a61f297e41fd8590d4f959b285733d1c3d67d30a6f46e04ce11deba
SHA512931f983e7a56f5e3bf5e232d987cfe3246ed97c8b8ef3d3068655ce24e7d6ab9046d47189d9630218df21827fd17b280ec98dbfd552ed9dfa3607a771f306d49
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\??\c:\windows\system\spoolsv.exeFilesize
274KB
MD504f0526d5f15d57319c5c98e2e9a07ce
SHA1162173ecee9a5ef0f141f00ff00e9646a5ccaf9d
SHA25655c21d7f7d35fd424b3dbe1def666abd66be8cd53f11f87b8ad4877d895341b2
SHA512bd504d3bda57fa18abf697d88998ef6bbb55ef3b920ca8858c45910295e008c7a00e2a10796f3a4c5c12eec5613ffa27b1189d655f5da9e4d1ec942cde0358f5
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\??\c:\windows\system\svchost.exeFilesize
274KB
MD5c10f6c20be07d7630a6b1dc6b0dfab47
SHA11bda4b0bbf42e3b80ca60d327ca6a879e3b50009
SHA2562df15d70dc2d77d5304efe10f6197056591efaacd746b3df12dd88dec26cdd15
SHA5123317daecb587693ac75a10220737ae75cec470e59b4e079c621617a3edec3a920d6073f561e6a25c648f78cc6e7b3637db5194c6ec04f0a9d73b2709d153218b
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memory/400-178-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/400-172-0x0000000000000000-mapping.dmp
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memory/540-161-0x0000000000000000-mapping.dmp
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memory/540-186-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/876-199-0x0000000000000000-mapping.dmp
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memory/1256-139-0x0000000000000000-mapping.dmp
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memory/1268-191-0x0000000000000000-mapping.dmp
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memory/1648-198-0x0000000000000000-mapping.dmp
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memory/1804-200-0x0000000000000000-mapping.dmp
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memory/3256-193-0x0000000000000000-mapping.dmp
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memory/3848-201-0x0000000000000000-mapping.dmp
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memory/4248-194-0x0000000000000000-mapping.dmp
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memory/4276-142-0x0000000000000000-mapping.dmp
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memory/4276-180-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4276-162-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4328-190-0x0000000006180000-0x000000000618A000-memory.dmpFilesize
40KB
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memory/4328-184-0x00000000056D0000-0x0000000005C74000-memory.dmpFilesize
5MB
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memory/4328-185-0x0000000005010000-0x00000000050AC000-memory.dmpFilesize
624KB
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memory/4328-171-0x0000000000000000-mapping.dmp
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memory/4328-187-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/4328-188-0x0000000006310000-0x00000000064D2000-memory.dmpFilesize
1MB
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memory/4328-189-0x00000000061E0000-0x0000000006272000-memory.dmpFilesize
584KB
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memory/4576-192-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4576-148-0x0000000000000000-mapping.dmp
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memory/4576-163-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4612-168-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4612-154-0x0000000000000000-mapping.dmp
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memory/4612-179-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4764-136-0x0000000000000000-mapping.dmp
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memory/4820-182-0x0000000000000000-mapping.dmp
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memory/4840-197-0x0000000000000000-mapping.dmp
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memory/4876-132-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4876-181-0x0000000000400000-0x000000000043E000-memory.dmpFilesize
248KB
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memory/4908-195-0x0000000000000000-mapping.dmp