agenttesla | de638d68163fe7f49b3371adbe9456b2c2ed2ef5182324e768dc42793591c7de

General

Target

WT0045679.exe
Size

428KB
MD5

8b721799c0f207360c4077fe7a3a1c24
SHA1

6574355e2c48b72c2ab2e4476e4168602f4c2b65
SHA256

de638d68163fe7f49b3371adbe9456b2c2ed2ef5182324e768dc42793591c7de
SHA512

80fb3644df03c06296a865128d021ec9c7258e39d40d986e53f611402173c3972add21f49013ac1c82d159e7bb473e8e3ea8c2b71b34a8c9efe0078712a32eaa

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
o~02Bx@Odn{r

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/1868-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1868-3-0x0000000000446F1E-mapping.dmp	family_agenttesla
behavioral1/memory/1868-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1868-5-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\newApp = "C:\\Users\\Admin\\AppData\\Roaming\\newApp\\newApp.exe"	WT0045679.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1500 set thread context of 1868	1500	WT0045679.exe	30

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1500	WT0045679.exe
1868	WT0045679.exe
1868	WT0045679.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	WT0045679.exe
Token: SeDebugPrivilege	1868	WT0045679.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 1836	1500	WT0045679.exe	26
PID 1500 wrote to memory of 1836	1500	WT0045679.exe	26
PID 1500 wrote to memory of 1836	1500	WT0045679.exe	26
PID 1500 wrote to memory of 1836	1500	WT0045679.exe	26
PID 1500 wrote to memory of 1860	1500	WT0045679.exe	27
PID 1500 wrote to memory of 1860	1500	WT0045679.exe	27
PID 1500 wrote to memory of 1860	1500	WT0045679.exe	27
PID 1500 wrote to memory of 1860	1500	WT0045679.exe	27
PID 1500 wrote to memory of 1852	1500	WT0045679.exe	28
PID 1500 wrote to memory of 1852	1500	WT0045679.exe	28
PID 1500 wrote to memory of 1852	1500	WT0045679.exe	28
PID 1500 wrote to memory of 1852	1500	WT0045679.exe	28
PID 1500 wrote to memory of 1876	1500	WT0045679.exe	29
PID 1500 wrote to memory of 1876	1500	WT0045679.exe	29
PID 1500 wrote to memory of 1876	1500	WT0045679.exe	29
PID 1500 wrote to memory of 1876	1500	WT0045679.exe	29
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30
PID 1500 wrote to memory of 1868	1500	WT0045679.exe	30

C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
"C:\Users\Admin\AppData\Local\Temp\WT0045679.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
  "{path}"
  2⤵
  PID:1836
- C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
  "{path}"
  2⤵
  PID:1860
- C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
  "{path}"
  2⤵
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
  "{path}"
  2⤵
  PID:1876
- C:\Users\Admin\AppData\Local\Temp\WT0045679.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1868

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

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1868-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1868-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1868-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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