agenttesla | 4b3efdba2a0251d16190ac0faabe18091b391b70e55ac58d17f8ad2ac0baab68

Analysis

max time kernel
77s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220414-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\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 688 set thread context of 3776	688	SOA.exe	94

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
1100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
688	SOA.exe
3776	SOA.exe
3776	SOA.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	688	SOA.exe
Token: SeDebugPrivilege	3776	SOA.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 688 wrote to memory of 1100	688	SOA.exe	92
PID 688 wrote to memory of 1100	688	SOA.exe	92
PID 688 wrote to memory of 1100	688	SOA.exe	92
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94
PID 688 wrote to memory of 3776	688	SOA.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:688
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IzEYVDgSS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp734.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1100
- 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:3776

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

Query Registry

T1012

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

SOA.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SOA.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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tmp734.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp734.tmp
Size 1KB
SHA256 4e174f81f8367e77bc51f2a877254ed57b7d29ebfa129199b4654a8aee534ad2
MD5 d46f722d139dd8dbdaae536f6d6f2d69
SHA1 0491ff6b7fd89d20373434edf9911659aa5c1d2d
SHA512 e65e1930736ee24e33439624341a72f24fa14abd9b28d58b89ad6fbe98dc4693366c48daf2fb2283f38b1e5af809573c217ad970ce0b86b7cc90514cc312d1de
MD5 SHA1 SHA512

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memory/688-130-0x0000000000670000-0x0000000000718000-memory.dmp

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memory/688-131-0x0000000005430000-0x00000000059D4000-memory.dmp

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memory/688-132-0x0000000004F80000-0x0000000005012000-memory.dmp

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memory/688-133-0x00000000050C0000-0x000000000515C000-memory.dmp

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memory/688-134-0x0000000005060000-0x000000000506A000-memory.dmp

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memory/3776-138-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/3776-140-0x0000000005CB0000-0x0000000005D16000-memory.dmp

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memory/3776-141-0x0000000006AE0000-0x0000000006B30000-memory.dmp

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