agenttesla | c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26

General

Target
doc202208060893999100399302000121.exe
Size 80KB
Sample220608-nat7cabgg5
SHA256 c25d169ffffb762f002d4f6bfe9fda71abfbc60baec3f1d3d813b81a84af0c26
MD5 3e2315c37ccb0cc931750ffe449df299
SHA1 5f36ebedaa5b50594978d39b85cc98c125d5a0fa
SHA512 4723894739af264abc1e8cde42e996c698d22d3e8550122dbc2ca493f87ad04cca7473c285b78aa4143d77c5d5888f25a27b4afb6712d5a63cb8e5e89d1a63e7
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5310370668:AAEdB2nfvvFj53YoaxJ-AleA2m93WUxxyM0/sendDocument

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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	doc202208060893999100399302000121.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bbzpkkcxn = "\"C:\\Users\\Admin\\AppData\\Roaming\\Fqpqzk\\Bbzpkkcxn.exe\""	doc202208060893999100399302000121.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 632	2176	doc202208060893999100399302000121.exe	91

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1524	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2176	doc202208060893999100399302000121.exe
2176	doc202208060893999100399302000121.exe
632	InstallUtil.exe
632	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	doc202208060893999100399302000121.exe
Token: SeDebugPrivilege	632	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2004	2176	doc202208060893999100399302000121.exe	79
PID 2176 wrote to memory of 2004	2176	doc202208060893999100399302000121.exe	79
PID 2176 wrote to memory of 2004	2176	doc202208060893999100399302000121.exe	79
PID 2176 wrote to memory of 3100	2176	doc202208060893999100399302000121.exe	87
PID 2176 wrote to memory of 3100	2176	doc202208060893999100399302000121.exe	87
PID 2176 wrote to memory of 3100	2176	doc202208060893999100399302000121.exe	87
PID 3100 wrote to memory of 1524	3100	cmd.exe	89
PID 3100 wrote to memory of 1524	3100	cmd.exe	89
PID 3100 wrote to memory of 1524	3100	cmd.exe	89
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91
PID 2176 wrote to memory of 632	2176	doc202208060893999100399302000121.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\doc202208060893999100399302000121.exe
"C:\Users\Admin\AppData\Local\Temp\doc202208060893999100399302000121.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe"
  2⤵
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3100
- - C:\Windows\SysWOW64\timeout.exe
    timeout 20
    3⤵
    - Delays execution with timeout.exe
    PID:1524
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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

memory/632-137-0x0000000000400000-0x000000000043A000-memory.dmp

Download

memory/632-138-0x00000000056D0000-0x000000000576C000-memory.dmp

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memory/632-139-0x0000000006450000-0x00000000064B6000-memory.dmp

Download

memory/632-140-0x0000000006A20000-0x0000000006A70000-memory.dmp

Download

memory/632-141-0x0000000006E10000-0x0000000006E1A000-memory.dmp

Download

memory/2176-130-0x0000000000C40000-0x0000000000C58000-memory.dmp

Download

memory/2176-132-0x0000000006BA0000-0x0000000007144000-memory.dmp

Download

memory/2176-133-0x0000000006690000-0x0000000006722000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads