agenttesla | f79708792edddcae0ea7fe021bc5b38152eb3ecd5545a58cd9d244534539f893

General

Target
holydami.exe
Size 756KB
Sample200827-e1fvye34l2
SHA256 f79708792edddcae0ea7fe021bc5b38152eb3ecd5545a58cd9d244534539f893
MD5 32e278dfcf2e7c4dbd2d748223a0c24a
SHA1 796242f97193222604808c8c99a3855dd1efc041
SHA512 dbcbf2b0db43b6e95a25c5fc882ef9b400b82dfe24d8f0984aa16b13f01c475e70876dfdc020ebcdb52fc09305753c9f9af8d6420815f48c556818c1e9400d91
MD5 SHA1 SHA512

Score

10^/10

agenttesla agilenet keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

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

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/1600-17-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1600-18-0x000000000045458E-mapping.dmp	family_agenttesla
behavioral1/memory/1600-20-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1600-21-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1016	sef.exe
1600	AddInProcess32.exe

Loads dropped DLL 2 IoCs

pid	Process
1304	holydami.exe
1016	sef.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1304-3-0x0000000000300000-0x000000000030B000-memory.dmp	agile_net

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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\sf.exe = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\sef.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1016 set thread context of 1600	1016	sef.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1304	holydami.exe
1304	holydami.exe
1304	holydami.exe
1016	sef.exe
1016	sef.exe
1016	sef.exe
1600	AddInProcess32.exe
1600	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	holydami.exe
Token: SeDebugPrivilege	1016	sef.exe
Token: SeDebugPrivilege	1600	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1600	AddInProcess32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1828	1304	holydami.exe	26
PID 1304 wrote to memory of 1828	1304	holydami.exe	26
PID 1304 wrote to memory of 1828	1304	holydami.exe	26
PID 1304 wrote to memory of 1828	1304	holydami.exe	26
PID 1828 wrote to memory of 1776	1828	cmd.exe	28
PID 1828 wrote to memory of 1776	1828	cmd.exe	28
PID 1828 wrote to memory of 1776	1828	cmd.exe	28
PID 1828 wrote to memory of 1776	1828	cmd.exe	28
PID 1304 wrote to memory of 1016	1304	holydami.exe	29
PID 1304 wrote to memory of 1016	1304	holydami.exe	29
PID 1304 wrote to memory of 1016	1304	holydami.exe	29
PID 1304 wrote to memory of 1016	1304	holydami.exe	29
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30
PID 1016 wrote to memory of 1600	1016	sef.exe	30

C:\Users\Admin\AppData\Local\Temp\holydami.exe
"C:\Users\Admin\AppData\Local\Temp\holydami.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v sf.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\sef.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v sf.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\sef.exe"
    3⤵
    - Adds Run key to start application
    PID:1776
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\sef.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\sef.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1016
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1600

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1016-11-0x0000000000F70000-0x0000000000F71000-memory.dmp

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memory/1016-14-0x0000000000540000-0x0000000000543000-memory.dmp

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memory/1016-10-0x0000000074E30000-0x000000007551E000-memory.dmp

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memory/1304-3-0x0000000000300000-0x000000000030B000-memory.dmp

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memory/1304-0-0x0000000074E30000-0x000000007551E000-memory.dmp

Download

memory/1304-1-0x0000000001000000-0x0000000001001000-memory.dmp

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memory/1600-17-0x0000000000400000-0x000000000045A000-memory.dmp

Download

memory/1600-20-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/1600-21-0x0000000000400000-0x000000000045A000-memory.dmp

Download

memory/1600-22-0x0000000074E30000-0x000000007551E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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