Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2023 16:40
Static task
static1
Behavioral task
behavioral1
Sample
Outstanding invoice.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Outstanding invoice.exe
Resource
win10v2004-20231130-en
General
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Target
Outstanding invoice.exe
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Size
586KB
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MD5
b8915103e9d639e762e83cf9c8bda9a9
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SHA1
a9650b8e7d490e933bd05aa4539a617ed5319f03
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SHA256
ce18daad377673d765ae77224400740842cc31aee43a2cdb5e5ac564fbbe908d
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SHA512
f27fe7eb6d649fe81d8e6a64e775c8a32901161d1d4eab3bb4c525d9927e5716f015be7a72997f90b5cfbaa3daf0681fdd2d516fd7154ee42a24a4c8d1889919
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SSDEEP
12288:XhkZ5IbmQRzs42dKmicNLXndCwcso0vji5RqhZjhnBCnZOvbzRof:XK/IKQRIsuzZcd0v1hZjhnYn8DzRof
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.elec-qatar.com - Port:
587 - Username:
[email protected] - Password:
MHabrar2019@# - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Control Panel\International\Geo\Nation Outstanding invoice.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-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding invoice.exe Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding invoice.exe Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding invoice.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 91 api.ipify.org 92 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4044 set thread context of 4896 4044 Outstanding invoice.exe 107 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 1208 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1080 powershell.exe 1080 powershell.exe 1080 powershell.exe 4896 Outstanding invoice.exe 4896 Outstanding invoice.exe 4896 Outstanding invoice.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1080 powershell.exe Token: SeDebugPrivilege 4896 Outstanding invoice.exe Token: SeManageVolumePrivilege 4428 svchost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4896 Outstanding invoice.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4044 wrote to memory of 1080 4044 Outstanding invoice.exe 103 PID 4044 wrote to memory of 1080 4044 Outstanding invoice.exe 103 PID 4044 wrote to memory of 1080 4044 Outstanding invoice.exe 103 PID 4044 wrote to memory of 1208 4044 Outstanding invoice.exe 108 PID 4044 wrote to memory of 1208 4044 Outstanding invoice.exe 108 PID 4044 wrote to memory of 1208 4044 Outstanding invoice.exe 108 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 PID 4044 wrote to memory of 4896 4044 Outstanding invoice.exe 107 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding invoice.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding invoice.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Outstanding invoice.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding invoice.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ItnrAboKhOJos.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1080
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ItnrAboKhOJos" /XML "C:\Users\Admin\AppData\Local\Temp\tmp87DD.tmp"2⤵
- Creates scheduled task(s)
PID:1208
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C:\Users\Admin\AppData\Local\Temp\Outstanding invoice.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding invoice.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4896
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C:\Windows\System32\sihclient.exeC:\Windows\System32\sihclient.exe /cv XLhaXemiUUm+RNLLa/134A.0.21⤵PID:1208
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:808
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4428
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD549eed8ee892a25b085487202b8f97c1b
SHA16f08e8cf2f119ea9d3aaaffdce56db03e73ca6d3
SHA256ac23bbc2486acef05fb8fbd22d976681caafbb2c92e019bfd71b3665a075b0a1
SHA512c4690e2e346f654e42076d038a25715c193ec2b8ae12b3184e6330e5e8b84a4b7cc82c3f47b6ae3c580f9f6c7914c15a2ec4a57cc52ea825b5e975e96315359f