agenttesla | 057883d711c8709cf98df054b86aa9f4e9ed0dc0b82ce31333f7577da3e708f6

Analysis

max time kernel
133s
max time network
123s
platform
windows10_x64
resource
win10v20210408
submitted
09/08/2021, 05:16

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General

Target
docs.exe
Size 720KB
Sample210809-t93cdqjcqs
SHA256 057883d711c8709cf98df054b86aa9f4e9ed0dc0b82ce31333f7577da3e708f6
MD5 859013972d88cd1a9c225d1e945d7d4e
SHA1 45f53c6dbed5fbc10f8dafc5a87a2edb6a68d566
SHA512 9836c2109ea0cf0e066b389e3ff8d365d6d5a0a19c3843cd5b45354d3b5fb99991e4b9cadaa21120f18c16d9ea83869f06b74e719d86f296f3e0214576db022f
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.ratllc.ae
Port
587
Username
[email protected]
Password
MGRRATnowzathALI@RATdxbDXBAgro786

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
behavioral2/memory/3716-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3716-127-0x00000000004376CE-mapping.dmp	family_agenttesla
behavioral2/memory/3716-132-0x00000000056C0000-0x0000000005BBE000-memory.dmp	family_agenttesla
behavioral2/memory/3716-137-0x00000000056C0000-0x0000000005BBE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3920 set thread context of 3716	3920	docs.exe	80

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
2352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3920	docs.exe
3716	RegSvcs.exe
3716	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3920	docs.exe
Token: SeDebugPrivilege	3716	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3920 wrote to memory of 2352	3920	docs.exe	78
PID 3920 wrote to memory of 2352	3920	docs.exe	78
PID 3920 wrote to memory of 2352	3920	docs.exe	78
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80
PID 3920 wrote to memory of 3716	3920	docs.exe	80

C:\Users\Admin\AppData\Local\Temp\docs.exe
"C:\Users\Admin\AppData\Local\Temp\docs.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qsaeVCvFn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2D2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2352
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3716

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3716-137-0x00000000056C0000-0x0000000005BBE000-memory.dmp

Download

memory/3716-134-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

Download

memory/3716-133-0x0000000005790000-0x0000000005791000-memory.dmp

Download

memory/3716-132-0x00000000056C0000-0x0000000005BBE000-memory.dmp

Download

memory/3716-126-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3920-119-0x0000000005140000-0x0000000005141000-memory.dmp

Download

memory/3920-123-0x0000000006D90000-0x0000000006DD2000-memory.dmp

Download

memory/3920-122-0x0000000006BC0000-0x0000000006C40000-memory.dmp

Download

memory/3920-121-0x000000000AFF0000-0x000000000AFF1000-memory.dmp

Download

memory/3920-120-0x000000000AF40000-0x000000000AF42000-memory.dmp

Download

memory/3920-114-0x0000000000850000-0x0000000000851000-memory.dmp

Download

memory/3920-118-0x00000000050D0000-0x0000000005162000-memory.dmp

Download

memory/3920-117-0x00000000051A0000-0x00000000051A1000-memory.dmp

Download

memory/3920-116-0x00000000056A0000-0x00000000056A1000-memory.dmp

Download