agenttesla | 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458

General

Target
AWB # 1835257406.PDF.exe
Size 1.2MB
Sample221213-299b7sbf8x
SHA256 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458
MD5 52bafc4196a3d4ae8082e80e4608f73b
SHA1 73df34bd2bdd4a00476f5cfe7da4bed436d60843
SHA512 6cb39990ec46cdddba6e5a5b473c1fde375ca838351c98e2a9a9e227d0f4b33e0d62f4bf278b0519fec9bb6fe03a839130b3d0d54f2ac373fb78cb73ef3ca43f
SSDEEP 24576:pm5SHl2hX71zph38MaiEbSh64O2u5/O775nMMMMMMMMMMMuMMMMMMMMMMMMMMMM8:ECbihh6aK/8MMMMMMMMMMMuMMMMMMMMs
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5495243543:AAG3XPeGW7yqfXF6_EXjGSfO9SWHJTpqVsU/

Signatures

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

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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	AWB # 1835257406.PDF.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LdtJsTw = "C:\\Users\\Admin\\AppData\\Roaming\\LdtJsTw\\LdtJsTw.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3416 set thread context of 1184	3416	AWB # 1835257406.PDF.exe	93

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
3928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3416	AWB # 1835257406.PDF.exe
1184	RegSvcs.exe
1184	RegSvcs.exe
1184	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3416	AWB # 1835257406.PDF.exe
Token: SeDebugPrivilege	1184	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3416 wrote to memory of 3928	3416	AWB # 1835257406.PDF.exe	91
PID 3416 wrote to memory of 3928	3416	AWB # 1835257406.PDF.exe	91
PID 3416 wrote to memory of 3928	3416	AWB # 1835257406.PDF.exe	91
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93
PID 3416 wrote to memory of 1184	3416	AWB # 1835257406.PDF.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\AWB # 1835257406.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\AWB # 1835257406.PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WcQdoTk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF244.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3928
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1184

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

tmpF244.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF244.tmp
Size 1KB
SHA256 c644f5f70ed5f747a3a0a339453046fff88028a4dfa8b82ee0ef8c55ba8b1de2
MD5 b5022a3799d9fd23ba25b29ebc9bf155
SHA1 8f1b15762e8b03845954800625ff204fbb4824c7
SHA512 11dde3134319799d85727b6a338140bc1ed696708e6997a40a8469258de0f9cdefeef34a8de56ff2994bbbd30a82408e55a67ddf94c6c6fbe1e46fc79c3c4b27
MD5 SHA1 SHA512

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memory/1184-140-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1184-141-0x0000000005CA0000-0x0000000005D06000-memory.dmp

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memory/1184-142-0x0000000006150000-0x00000000061A0000-memory.dmp

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memory/3416-132-0x00000000001E0000-0x000000000030E000-memory.dmp

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memory/3416-133-0x0000000005280000-0x0000000005824000-memory.dmp

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memory/3416-134-0x0000000004CD0000-0x0000000004D62000-memory.dmp

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memory/3416-135-0x0000000004E10000-0x0000000004EAC000-memory.dmp

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memory/3416-136-0x0000000004DB0000-0x0000000004DBA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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