Analysis
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max time kernel
95s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2023 10:27
Static task
static1
Behavioral task
behavioral1
Sample
DOCX.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
DOCX.exe
Resource
win10v2004-20230220-en
General
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Target
DOCX.exe
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Size
606KB
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MD5
4caef2ef6f0bf5b2206707c47e2f8e20
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SHA1
3e28d2eaf391ad7303b5eb5563ffbb8541a128e3
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SHA256
c091b78802bae597d3ace620d49874112c1b8063138042a9a7b3b05da64522fa
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SHA512
d8b3b05c30715297cc2561891a9924e06a02e420ddf82d941775dcc3689df7f454d1e99866c3767bd738aa9f08d4df37038ecb49856feff26aad8a47fdae43d7
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SSDEEP
12288:cR2s+baW6dYIdKFFNfB3M9U9O2QnDXAanVY:sgbaPlyFNfFM95ZXB
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.strictfacilityservices.com - Port:
587 - Username:
[email protected] - Password:
SFS!@#321 - 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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation DOCX.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-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOCX.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOCX.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOCX.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3596 set thread context of 3316 3596 DOCX.exe 93 -
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 948 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3596 DOCX.exe 3596 DOCX.exe 3596 DOCX.exe 3596 DOCX.exe 4008 powershell.exe 4008 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3596 DOCX.exe Token: SeDebugPrivilege 4008 powershell.exe Token: SeDebugPrivilege 3316 DOCX.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3596 wrote to memory of 4008 3596 DOCX.exe 89 PID 3596 wrote to memory of 4008 3596 DOCX.exe 89 PID 3596 wrote to memory of 4008 3596 DOCX.exe 89 PID 3596 wrote to memory of 948 3596 DOCX.exe 91 PID 3596 wrote to memory of 948 3596 DOCX.exe 91 PID 3596 wrote to memory of 948 3596 DOCX.exe 91 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 PID 3596 wrote to memory of 3316 3596 DOCX.exe 93 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOCX.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOCX.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DOCX.exe"C:\Users\Admin\AppData\Local\Temp\DOCX.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JTiUOTaS.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4008
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JTiUOTaS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6EA.tmp"2⤵
- Creates scheduled task(s)
PID:948
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C:\Users\Admin\AppData\Local\Temp\DOCX.exe"C:\Users\Admin\AppData\Local\Temp\DOCX.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3316
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD533d62ef2c354f839a8b2b987e6ee41e7
SHA1d76f64ac411a61f3f232f7f9f7b179bd34042226
SHA256f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9
SHA512d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD52131996bc2235b92ef8f31e1faaff6d6
SHA1484cc1efdd531004981fcb08a959c1b00f3d3bef
SHA2569c0db4f840e692bfa0aaa665d19af5df434877a647c7b826ad1fcbd43a64cad6
SHA512aaba62927dec80f8094a67faa669338c6822a05536040d8d222d0fa61f2d18d3ab307f0dc7ed18bc8f2163de0b8acd0ed80b62925e630033d49fdec6fe1a97d0