agenttesla | 4705340cecbc474ffcb41a8ae7968093fa35084b3c197d4cf1a1862be648828d

General

Target
PO - 12619.exe
Size 847KB
Sample230208-sefa7sca22
SHA256 4705340cecbc474ffcb41a8ae7968093fa35084b3c197d4cf1a1862be648828d
MD5 85348a0517930a3c83a508960f220678
SHA1 af85a0654e7a6fc89022b7a9c772ddaa4b2ff59c
SHA512 4804a5d697bd1828e8d790e9c2f49f15b6f977d2f16976fb38010232b37ea24e7bd9be8c691489b0b76b084765c922d7cc5734e7a5b38c98507c1a85ffda7f29
SSDEEP 24576:YGb8vOztLHKNu+A+/1bfd47JnSJULlWjmu25Q9kdr1q:mJ+WuYkm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.mdist.us
Port
587
Username
[email protected]
Password
Jobs#4321
Email to
[email protected]

Signatures

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

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	PO - 12619.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yGbzOMp = "C:\\Users\\Admin\\AppData\\Roaming\\yGbzOMp\\yGbzOMp.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4296 set thread context of 2228	4296	PO - 12619.exe	85

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
1416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4296	PO - 12619.exe
4296	PO - 12619.exe
4296	PO - 12619.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	PO - 12619.exe
Token: SeDebugPrivilege	2228	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 1416	4296	PO - 12619.exe	82
PID 4296 wrote to memory of 1416	4296	PO - 12619.exe	82
PID 4296 wrote to memory of 1416	4296	PO - 12619.exe	82
PID 4296 wrote to memory of 3464	4296	PO - 12619.exe	84
PID 4296 wrote to memory of 3464	4296	PO - 12619.exe	84
PID 4296 wrote to memory of 3464	4296	PO - 12619.exe	84
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85
PID 4296 wrote to memory of 2228	4296	PO - 12619.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO - 12619.exe
"C:\Users\Admin\AppData\Local\Temp\PO - 12619.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVtRJvJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA57.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:3464
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmpDA57.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpDA57.tmp
Size 1KB
SHA256 1430512fba39ca165a953c676d8198fe358d42cfbe6b8892c26e8bd34c201b91
MD5 37890674c5187f60bf5da95a5b57ce92
SHA1 e1f9b83ea46fb74f3af413c4f570119cd1aa89c4
SHA512 6f0a1da177fdd0e4f789a2f7254c75680dcbf79be6a5a1ff1d5d1058d58bac1fa7d03ca7681db23e95bdae071b9926b99d4efa4bf946924c25b75554e20ee9bf
MD5 SHA1 SHA512

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memory/2228-141-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/2228-142-0x00000000051D0000-0x0000000005236000-memory.dmp

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memory/2228-143-0x00000000065A0000-0x00000000065F0000-memory.dmp

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memory/2228-144-0x0000000006800000-0x00000000069C2000-memory.dmp

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memory/4296-135-0x00000000050F0000-0x00000000050FA000-memory.dmp

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memory/4296-136-0x0000000007CD0000-0x0000000007D6C000-memory.dmp

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memory/4296-134-0x0000000004F60000-0x0000000004FF2000-memory.dmp

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memory/4296-133-0x0000000005510000-0x0000000005AB4000-memory.dmp

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memory/4296-132-0x00000000004E0000-0x00000000005BA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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