agenttesla | 4b3efdba2a0251d16190ac0faabe18091b391b70e55ac58d17f8ad2ac0baab68

Analysis

max time kernel
70s
max time network
148s
platform
windows7_x64
resource
win7-20220414-en
submitted
10/05/2022, 04:27

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General

Target
SOA.exe
Size 647KB
Sample220510-e234wshgam
SHA256 4b3efdba2a0251d16190ac0faabe18091b391b70e55ac58d17f8ad2ac0baab68
MD5 116b30619542968f27949b3cc451a2e0
SHA1 022f5568b18650f243b79b2ba6bc2c8a5caba51a
SHA512 5a14ca356c63a9fc0e69f937c4f43cf844ac1d557f09a441dcb0a9170db6013876d16c89aef0753aa92810d8c0324e7e2a6d54fd0d6d146a37b2013fa06ca3b6
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.ocenmasters.com
Port
587
Username
[email protected]
Password
donblack12345

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.ocenmasters.com
Port
587
Username
[email protected]
Password
donblack12345
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

Drops file in Drivers directory 1 IoCs

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

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

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\yqWDN = "C:\\Users\\Admin\\AppData\\Roaming\\yqWDN\\yqWDN.exe"	SOA.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1092 set thread context of 968	1092	SOA.exe	30

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
1152	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1092	SOA.exe
968	SOA.exe
968	SOA.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1092	SOA.exe
Token: SeDebugPrivilege	968	SOA.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 1152	1092	SOA.exe	27
PID 1092 wrote to memory of 1152	1092	SOA.exe	27
PID 1092 wrote to memory of 1152	1092	SOA.exe	27
PID 1092 wrote to memory of 1152	1092	SOA.exe	27
PID 1092 wrote to memory of 1776	1092	SOA.exe	29
PID 1092 wrote to memory of 1776	1092	SOA.exe	29
PID 1092 wrote to memory of 1776	1092	SOA.exe	29
PID 1092 wrote to memory of 1776	1092	SOA.exe	29
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30
PID 1092 wrote to memory of 968	1092	SOA.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe

C:\Users\Admin\AppData\Local\Temp\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IzEYVDgSS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp890E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1152
- C:\Users\Admin\AppData\Local\Temp\SOA.exe
  "{path}"
  2⤵
  PID:1776
- C:\Users\Admin\AppData\Local\Temp\SOA.exe
  "{path}"
  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:968

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

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp890E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp890E.tmp
Size 1KB
SHA256 a8c9aa9419d7c88213d38a220f782c033b26d59415d7877712ecf4ae3290740e
MD5 d4e75ded54fc814bd536b76a2f03a638
SHA1 d34c5e024a8b1686411f41cce92b81036980430d
SHA512 c8378ff5b3161a374b8c1d3fff38dd7b3477cbafb23241fee3598a2d4a997891187b10b44b4bc6b11d8b9efe718d7a61d40ae4eea3e628a333af0ce654d5c820
MD5 SHA1 SHA512

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memory/968-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-71-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-69-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/968-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1092-54-0x0000000000C10000-0x0000000000CB8000-memory.dmp

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memory/1092-55-0x0000000075F61000-0x0000000075F63000-memory.dmp

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memory/1092-56-0x0000000000310000-0x000000000031A000-memory.dmp

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memory/1092-58-0x0000000000550000-0x000000000058A000-memory.dmp

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memory/1092-57-0x00000000050E0000-0x0000000005162000-memory.dmp

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