agenttesla | 3d08c3bbfef4bfdadae63d86a5651677744d14aad5526dccfa39d1b64fcfce22

General

Target
PO- 4200005425.exe
Size 540KB
Sample220131-rdvh3ahccn
SHA256 3d08c3bbfef4bfdadae63d86a5651677744d14aad5526dccfa39d1b64fcfce22
MD5 ebd1396d5ac1b4ce009857466e63cc14
SHA1 ce296f45e345b9bd75acb4b044273eede99b42a4
SHA512 a55088a1e96313ef79f581fb15e7d3a02cb052840382849af5e007cc63314fa6eb01b6d5a5397b85618e6b9bd811b37261648122d0ae163daecb3294049c8b31
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/sendDocument

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/576-61-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/576-62-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/576-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/576-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1548 set thread context of 576	1548	PO- 4200005425.exe	27

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1548	PO- 4200005425.exe
1548	PO- 4200005425.exe
576	MSBuild.exe
576	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1548	PO- 4200005425.exe
Token: SeDebugPrivilege	576	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27
PID 1548 wrote to memory of 576	1548	PO- 4200005425.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\PO- 4200005425.exe
"C:\Users\Admin\AppData\Local\Temp\PO- 4200005425.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  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:576

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

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/576-63-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-59-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-60-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-61-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-62-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-64-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/576-65-0x0000000004A50000-0x0000000004A51000-memory.dmp

Download

memory/576-67-0x0000000004A51000-0x0000000004A52000-memory.dmp

Download

memory/1548-55-0x0000000076451000-0x0000000076453000-memory.dmp

Download

memory/1548-56-0x0000000000590000-0x00000000005A4000-memory.dmp

Download

memory/1548-57-0x0000000004D90000-0x0000000004D91000-memory.dmp

Download

memory/1548-58-0x0000000005010000-0x0000000005080000-memory.dmp

Download

memory/1548-54-0x0000000000AA0000-0x0000000000B2E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads