agenttesla | 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458

Analysis

max time kernel
70s
max time network
144s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
13/12/2022, 23:18

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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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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-1-5-21-3385717845-2518323428-350143044-1000\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 1216 set thread context of 1364	1216	AWB # 1835257406.PDF.exe	31

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
1496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1216	AWB # 1835257406.PDF.exe
1216	AWB # 1835257406.PDF.exe
1216	AWB # 1835257406.PDF.exe
1364	RegSvcs.exe
1364	RegSvcs.exe
1364	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	AWB # 1835257406.PDF.exe
Token: SeDebugPrivilege	1364	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 1496	1216	AWB # 1835257406.PDF.exe	28
PID 1216 wrote to memory of 1496	1216	AWB # 1835257406.PDF.exe	28
PID 1216 wrote to memory of 1496	1216	AWB # 1835257406.PDF.exe	28
PID 1216 wrote to memory of 1496	1216	AWB # 1835257406.PDF.exe	28
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1804	1216	AWB # 1835257406.PDF.exe	30
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31
PID 1216 wrote to memory of 1364	1216	AWB # 1835257406.PDF.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WcQdoTk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp787B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:1804
- 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:1364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp787B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp787B.tmp
Size 1KB
SHA256 b06f2bb2e3a36a82550d710b7a14ff45844b9400c7d2770641c723ed3f147022
MD5 8695dcab996d8d80daae1b30fefb4a43
SHA1 613484d4f000f858cf175a3a90e04ac66902366d
SHA512 563140740d9976c6cc748795b9024f6dddd8e2f24d6fbf2be0feecb3a220652f51111d63b0a7f370bf54ce1f4ed135d715926493cd02c09f65db6d6df4d6d16e
MD5 SHA1 SHA512

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memory/1216-57-0x0000000005260000-0x00000000052E2000-memory.dmp

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memory/1216-55-0x0000000075D01000-0x0000000075D03000-memory.dmp

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memory/1216-54-0x00000000013E0000-0x000000000150E000-memory.dmp

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memory/1216-58-0x0000000000800000-0x000000000083C000-memory.dmp

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memory/1216-56-0x0000000000450000-0x0000000000462000-memory.dmp

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memory/1364-66-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-61-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-71-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1364-69-0x0000000000400000-0x000000000043C000-memory.dmp

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