agenttesla | 09535b3006755b42482262b04d2e68c696ce132b4c4cef30a6d9e139ed888cd2

General

Target
SOA.exe
Size 753KB
Sample230209-1cg11sef21
SHA256 09535b3006755b42482262b04d2e68c696ce132b4c4cef30a6d9e139ed888cd2
MD5 de4858508e90c545f5b76cae064697a4
SHA1 de91e2022e96f848a669d93605336922258db414
SHA512 6ff313078e615fcd28d10cec6b09aec49e64f6efef3d7a15e28de26f821908d37a77772068c85a3ec9eafa665eff85b5d648bc8de4fa2d25a964cde825bf58ee
SSDEEP 12288:3f1NDne7f4WYMTyPdLX2tuCAe/ZXWndc0F8bzDwV4xeZiP3vKrfa4pca4z:3T7MTyPdLX2tuCAe/ZXgdDF4z86xaiKm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendDocument

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	SOA.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yqWDN = "C:\\Users\\Admin\\AppData\\Roaming\\yqWDN\\yqWDN.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4708 set thread context of 4652	4708	SOA.exe	86

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4708	SOA.exe
4652	RegSvcs.exe
4652	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4708	SOA.exe
Token: SeDebugPrivilege	4652	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 4644	4708	SOA.exe	84
PID 4708 wrote to memory of 4644	4708	SOA.exe	84
PID 4708 wrote to memory of 4644	4708	SOA.exe	84
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86
PID 4708 wrote to memory of 4652	4708	SOA.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pHfjYaYnaO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp100D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4644
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp100D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp100D.tmp
Size 1KB
SHA256 a77ea94b784679cd9d40d07a5048b7a8b66a461a1a9311399ada3561aa7a0605
MD5 7f75ff0345d7389c26b15bf2cab26ed4
SHA1 308fb38884de8042fa9679d53e5fbb1b77eb30aa
SHA512 d5c0e67c33061550025bcce00e3e4ddf940031eb101d0c11f15d3248e828211c6d82f380630a37c9fc1ddfc3fbff7534ca9495f461f33e072685069ffefa6890
MD5 SHA1 SHA512

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memory/4652-140-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4652-141-0x00000000065A0000-0x0000000006606000-memory.dmp

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memory/4652-142-0x0000000006B20000-0x0000000006B70000-memory.dmp

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memory/4708-132-0x00000000003A0000-0x0000000000462000-memory.dmp

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memory/4708-133-0x0000000005400000-0x00000000059A4000-memory.dmp

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memory/4708-134-0x0000000004E50000-0x0000000004EE2000-memory.dmp

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memory/4708-135-0x0000000004EF0000-0x0000000004F8C000-memory.dmp

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memory/4708-136-0x0000000004E00000-0x0000000004E0A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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