Analysis
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max time kernel
87s -
max time network
76s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
20/12/2022, 15:54
Static task
static1
Behavioral task
behavioral1
Sample
PLT20941.EXE.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
PLT20941.EXE.exe
Resource
win10v2004-20221111-en
General
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Target
PLT20941.EXE.exe
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Size
856KB
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MD5
23f3d648155345927d423e5928556386
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SHA1
2da92044feb908ab873dcbaa64fa659e89214678
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SHA256
26f0b09b268b03208b04f2744735ca23fa683238c944a065216fccdab0b5816a
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SHA512
1ca2c7a60a43643723b3ae0062d2b92c93a85f91f00d9fefde45cf325a2eabd3f3f38f36b84fdd5d9da445865346efd85fed7d4bef1681624bbe5a6a2f290dc8
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SSDEEP
12288:k+bdz707a1k+H1csok/sZa4Rb6Wox2cHss/S+PNc42xtAq:fbB7z15HuVRb0x2cHs6Sqm42nAq
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5923109311:AAGkEmGrMsQyQ8A-GmsvDBttRvvSV6NYxs4/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Executes dropped EXE 2 IoCs
pid Process 288 FB_B404.tmp.exe 1072 FB_B463.tmp.exe -
Loads dropped DLL 2 IoCs
pid Process 1624 PLT20941.EXE.exe 1624 PLT20941.EXE.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 FB_B463.tmp.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 FB_B463.tmp.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 FB_B463.tmp.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.
flow ioc 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1328 set thread context of 1624 1328 PLT20941.EXE.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1600 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 288 FB_B404.tmp.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1072 FB_B463.tmp.exe 1072 FB_B463.tmp.exe 892 powershell.exe 1072 FB_B463.tmp.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1072 FB_B463.tmp.exe Token: SeDebugPrivilege 892 powershell.exe Token: SeDebugPrivilege 288 FB_B404.tmp.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1328 wrote to memory of 892 1328 PLT20941.EXE.exe 28 PID 1328 wrote to memory of 892 1328 PLT20941.EXE.exe 28 PID 1328 wrote to memory of 892 1328 PLT20941.EXE.exe 28 PID 1328 wrote to memory of 892 1328 PLT20941.EXE.exe 28 PID 1328 wrote to memory of 1600 1328 PLT20941.EXE.exe 30 PID 1328 wrote to memory of 1600 1328 PLT20941.EXE.exe 30 PID 1328 wrote to memory of 1600 1328 PLT20941.EXE.exe 30 PID 1328 wrote to memory of 1600 1328 PLT20941.EXE.exe 30 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1328 wrote to memory of 1624 1328 PLT20941.EXE.exe 32 PID 1624 wrote to memory of 288 1624 PLT20941.EXE.exe 33 PID 1624 wrote to memory of 288 1624 PLT20941.EXE.exe 33 PID 1624 wrote to memory of 288 1624 PLT20941.EXE.exe 33 PID 1624 wrote to memory of 288 1624 PLT20941.EXE.exe 33 PID 1624 wrote to memory of 1072 1624 PLT20941.EXE.exe 34 PID 1624 wrote to memory of 1072 1624 PLT20941.EXE.exe 34 PID 1624 wrote to memory of 1072 1624 PLT20941.EXE.exe 34 PID 1624 wrote to memory of 1072 1624 PLT20941.EXE.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 FB_B463.tmp.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 FB_B463.tmp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PLT20941.EXE.exe"C:\Users\Admin\AppData\Local\Temp\PLT20941.EXE.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1328 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tlRxJDbsLEqHXt.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:892
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tlRxJDbsLEqHXt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0CA.tmp"2⤵
- Creates scheduled task(s)
PID:1600
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C:\Users\Admin\AppData\Local\Temp\PLT20941.EXE.exe"C:\Users\Admin\AppData\Local\Temp\PLT20941.EXE.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Users\Admin\AppData\Local\Temp\FB_B404.tmp.exe"C:\Users\Admin\AppData\Local\Temp\FB_B404.tmp.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
PID:288
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C:\Users\Admin\AppData\Local\Temp\FB_B463.tmp.exe"C:\Users\Admin\AppData\Local\Temp\FB_B463.tmp.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1072
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
117KB
MD5cc2d2f707f935aebb4931f1fe7616624
SHA1f9c0d76e1b3508f42609e2abf78012e9fa475ae5
SHA256ee5c5ab5b14e02cff11eb3a0ffa0b41a135428d526936285d0528c4f5c43530f
SHA512d601d0f5331f2e684d5eb1dc8f177af9e6243fc5b9376cdea4fd66c061a68de994f00942accab596bf36547a3676de83d112481f001d3dd5e6d812537813561a
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Filesize
117KB
MD5cc2d2f707f935aebb4931f1fe7616624
SHA1f9c0d76e1b3508f42609e2abf78012e9fa475ae5
SHA256ee5c5ab5b14e02cff11eb3a0ffa0b41a135428d526936285d0528c4f5c43530f
SHA512d601d0f5331f2e684d5eb1dc8f177af9e6243fc5b9376cdea4fd66c061a68de994f00942accab596bf36547a3676de83d112481f001d3dd5e6d812537813561a
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Filesize
160KB
MD531d63c5e1804af4bba747db7a016d594
SHA14957b93ab03a3cb91603c8c5d6c71bb376ab73ee
SHA256a40808804f8981f94918b2f7d7decb079dc160acce8db5f5d31cd80445757d23
SHA5122a8115fbadcae77eb7a06024f16f85ddd796acd9b6647688c2d537e65cf6a978491679aca6da5e8a41509662cf99d0c7ad77632f6799ccb9c7e4002088d796b0
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Filesize
160KB
MD531d63c5e1804af4bba747db7a016d594
SHA14957b93ab03a3cb91603c8c5d6c71bb376ab73ee
SHA256a40808804f8981f94918b2f7d7decb079dc160acce8db5f5d31cd80445757d23
SHA5122a8115fbadcae77eb7a06024f16f85ddd796acd9b6647688c2d537e65cf6a978491679aca6da5e8a41509662cf99d0c7ad77632f6799ccb9c7e4002088d796b0
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Filesize
1KB
MD5c193ee4e0b715437d343e11fa7cc62d7
SHA1dbf8a7a13120882575643a017d767ac2d01b2d60
SHA25673b0abcbb0ae7dbfaf6b66c5a2f593fdcad0688d599e3e57e69bd772c150df98
SHA512a189ccb5616c7214b9db5a36c99c9285e4cb530b324d95d24f3ef25c5aad9426d20a5b97be7609a9f3bcd4432be676bb81ca1280b5ed2fcf4d04dd27d387b42f
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Filesize
117KB
MD5cc2d2f707f935aebb4931f1fe7616624
SHA1f9c0d76e1b3508f42609e2abf78012e9fa475ae5
SHA256ee5c5ab5b14e02cff11eb3a0ffa0b41a135428d526936285d0528c4f5c43530f
SHA512d601d0f5331f2e684d5eb1dc8f177af9e6243fc5b9376cdea4fd66c061a68de994f00942accab596bf36547a3676de83d112481f001d3dd5e6d812537813561a
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Filesize
160KB
MD531d63c5e1804af4bba747db7a016d594
SHA14957b93ab03a3cb91603c8c5d6c71bb376ab73ee
SHA256a40808804f8981f94918b2f7d7decb079dc160acce8db5f5d31cd80445757d23
SHA5122a8115fbadcae77eb7a06024f16f85ddd796acd9b6647688c2d537e65cf6a978491679aca6da5e8a41509662cf99d0c7ad77632f6799ccb9c7e4002088d796b0