Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 10:34
Static task
static1
Behavioral task
behavioral1
Sample
THA-02187.pdf.exe
Resource
win7-20231129-en
General
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Target
THA-02187.pdf.exe
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Size
690KB
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MD5
ecfbc6343e85f36fda76a7b66a342475
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SHA1
59dd4a689d6e5fd4d07cc780a88d0b4902f369ee
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SHA256
3012b1cdc6d41423e99d57dac314df023f3e993fd42ee66f09553827ff616c79
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SHA512
2f635e264db29bdd871af05742e2695f65bc2fbad76e6736cccbed7495b1a9d5e81766a7fcd7844ec66898065a3f80d1130d48df3a3d27d3f99cc9baf19b4e2f
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SSDEEP
12288:EHm21680skSKSIwz4lvmi3vcso51aAO/CDebcxz/2R6iouQNvyKhkfZC614IpBK:EHp1680JSNIG4lvHcso515bN/2T45hwx
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
)otE@Kl4 - 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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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2984 powershell.exe 4008 powershell.exe -
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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation THA-02187.pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2444 set thread context of 1364 2444 THA-02187.pdf.exe 93 -
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 1204 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2444 THA-02187.pdf.exe 4008 powershell.exe 2984 powershell.exe 2444 THA-02187.pdf.exe 2984 powershell.exe 4008 powershell.exe 1364 RegSvcs.exe 1364 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2444 THA-02187.pdf.exe Token: SeDebugPrivilege 4008 powershell.exe Token: SeDebugPrivilege 2984 powershell.exe Token: SeDebugPrivilege 1364 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2444 wrote to memory of 4008 2444 THA-02187.pdf.exe 87 PID 2444 wrote to memory of 4008 2444 THA-02187.pdf.exe 87 PID 2444 wrote to memory of 4008 2444 THA-02187.pdf.exe 87 PID 2444 wrote to memory of 2984 2444 THA-02187.pdf.exe 89 PID 2444 wrote to memory of 2984 2444 THA-02187.pdf.exe 89 PID 2444 wrote to memory of 2984 2444 THA-02187.pdf.exe 89 PID 2444 wrote to memory of 1204 2444 THA-02187.pdf.exe 91 PID 2444 wrote to memory of 1204 2444 THA-02187.pdf.exe 91 PID 2444 wrote to memory of 1204 2444 THA-02187.pdf.exe 91 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93 PID 2444 wrote to memory of 1364 2444 THA-02187.pdf.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe"C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4008
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WfOTdjb.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WfOTdjb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp73A9.tmp"2⤵
- Creates scheduled task(s)
PID:1204
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1364
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD505ad98017f494a4c37d98e9792a93e9f
SHA173026e6524aa9468b1df28f6e8cb9b30fde51519
SHA2567f66bb8fb126ce0c647cd2520dd636ea4656300b7efc94c0b85347cf62f48bd3
SHA5123e2854e369345a8c5aa73d3d2d058abfac6a0046b71223277f32d66d6cfffc1b26ebca0f41c963997a5e52e0b0fc007d0cc3e1eb5647fde127df72291db0c180
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5039336018226a8eb8435ed149820297a
SHA152dbc7a6280d4711e1439d694dc46d2f4b3bbeb9
SHA256540f615a8a967992caea31b9167329976b3649976bbc5289321cfccb6b922fc9
SHA51259a6b5720d5e87d395e3c6b3b83c2fe3f0c8edd0e6c7f477d2b37cb6232d63849ba1863f0c8bc82c44899be8222d95394ed9cde3a0e2bf85f0f64ae7f13d3d86