agenttesla | 45c0b5eda3f5bc38f1bdac63a60ded33142355d316e488a19d9d6083dc0306ca

Analysis

max time kernel
126s
max time network
136s
platform
windows7_x64
resource
win7-en-20211208
submitted
31/01/2022, 06:49

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General

Target
PO GNH309.pdf.exe
Size 660KB
Sample220131-hlc5baghf9
SHA256 45c0b5eda3f5bc38f1bdac63a60ded33142355d316e488a19d9d6083dc0306ca
MD5 33125d9306e79affe11fecaccab6078b
SHA1 486a155b2ad4163859ff3323d7bb2730766f7b1d
SHA512 9523eb1dd4da6aa64f5ea64d5358ac6019b3520ede29bd01993d1e1c6a1825f0703948ef71091d252555174487faefe4222b5b980a2fb639516959957adc61b5
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
marcellinus

Signatures

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

AgentTesla Payload 5 IoCs

resource	yara_rule
behavioral1/memory/1924-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1924-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1924-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1924-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1392-68-0x00000000024F0000-0x000000000313A000-memory.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 1924	1576	PO GNH309.pdf.exe	33

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
608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1924	RegSvcs.exe
1924	RegSvcs.exe
1392	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	RegSvcs.exe
Token: SeDebugPrivilege	1392	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1392	1576	PO GNH309.pdf.exe	29
PID 1576 wrote to memory of 1392	1576	PO GNH309.pdf.exe	29
PID 1576 wrote to memory of 1392	1576	PO GNH309.pdf.exe	29
PID 1576 wrote to memory of 1392	1576	PO GNH309.pdf.exe	29
PID 1576 wrote to memory of 608	1576	PO GNH309.pdf.exe	31
PID 1576 wrote to memory of 608	1576	PO GNH309.pdf.exe	31
PID 1576 wrote to memory of 608	1576	PO GNH309.pdf.exe	31
PID 1576 wrote to memory of 608	1576	PO GNH309.pdf.exe	31
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33
PID 1576 wrote to memory of 1924	1576	PO GNH309.pdf.exe	33

C:\Users\Admin\AppData\Local\Temp\PO GNH309.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO GNH309.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DDRljXeWNWDzf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1392
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DDRljXeWNWDzf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4DE2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:608
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1924

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1392-68-0x00000000024F0000-0x000000000313A000-memory.dmp

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memory/1392-70-0x00000000024F0000-0x000000000313A000-memory.dmp

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memory/1392-69-0x00000000024F0000-0x000000000313A000-memory.dmp

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memory/1576-55-0x0000000076451000-0x0000000076453000-memory.dmp

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memory/1576-56-0x00000000072F0000-0x00000000072F1000-memory.dmp

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memory/1576-57-0x0000000000350000-0x0000000000364000-memory.dmp

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memory/1576-58-0x0000000007690000-0x0000000007700000-memory.dmp

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memory/1576-54-0x0000000000CB0000-0x0000000000D5C000-memory.dmp

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memory/1924-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1924-63-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1924-66-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1924-67-0x0000000001180000-0x0000000001181000-memory.dmp

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memory/1924-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1924-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1924-61-0x0000000000400000-0x000000000043C000-memory.dmp

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