agenttesla | d33eea86eb7794132b9d99edf58f349f912b482cd2be5e5c63068e2700279fcd

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2023, 12:04

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General

Target
Statement of Accounts.PDF.exe
Size 674KB
Sample230418-n8k2bsda3x
SHA256 d33eea86eb7794132b9d99edf58f349f912b482cd2be5e5c63068e2700279fcd
MD5 7a30a12c69a31500aefbfbe968b0d72d
SHA1 8425cfad6b672aa73fcd45eed00f147454386b55
SHA512 a81b07d14c884ce9ffb07c309ec23e73f12dabdb74267b78022d1084f743bb467c092822434657cfcc8c33272477d5b4c0a49d3960ea358a54e484e4334b30a5
SSDEEP 6144:bOXEdljrN2GhNbODyldroVNuVHrWeSpTLTpklGjMWenRshfegkK69qD3UDy5JdX5:b352iN6uldrvtSLTKoJe1Qf1XTI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.dmstech.in
Port
587
Username
[email protected]
Password
0]6F9Az.pqfd
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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	Statement of Accounts.PDF.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2532 set thread context of 4588	2532	Statement of Accounts.PDF.exe	91

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
3800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2532	Statement of Accounts.PDF.exe
4588	RegSvcs.exe
4588	RegSvcs.exe
4588	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2532	Statement of Accounts.PDF.exe
Token: SeDebugPrivilege	4588	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 3800	2532	Statement of Accounts.PDF.exe	89
PID 2532 wrote to memory of 3800	2532	Statement of Accounts.PDF.exe	89
PID 2532 wrote to memory of 3800	2532	Statement of Accounts.PDF.exe	89
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91
PID 2532 wrote to memory of 4588	2532	Statement of Accounts.PDF.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Statement of Accounts.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Statement of Accounts.PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CRoevPoxsD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE92C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3800
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4588

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmpE92C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE92C.tmp
Size 1KB
SHA256 fec4a01583411da4ac81a7bf1632c9582647653acf8e8b6a160f2776d3e974a8
MD5 72036e8e6ef168463873354d417c138b
SHA1 f66f0c670bbacbf7394df321da618e65ddae9bc8
SHA512 83f1fa0dddd73c807dd1f26b5b4c3d1ceb1c1f4ae13f9c924191ff39c30bb3a9c264c45eac8dee203cfd35bdcb16e1a42e43c060182ecb27b54e59e1798e4ddd
MD5 SHA1 SHA512

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memory/2532-139-0x0000000004F50000-0x0000000004F60000-memory.dmp

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memory/2532-135-0x00000000052A0000-0x0000000005844000-memory.dmp

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memory/2532-136-0x0000000004CF0000-0x0000000004D82000-memory.dmp

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memory/2532-137-0x0000000004BF0000-0x0000000004BFA000-memory.dmp

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memory/2532-138-0x0000000004F60000-0x0000000004FB6000-memory.dmp

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memory/2532-133-0x00000000001A0000-0x000000000024E000-memory.dmp

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memory/2532-140-0x0000000004F50000-0x0000000004F60000-memory.dmp

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memory/2532-134-0x0000000004C50000-0x0000000004CEC000-memory.dmp

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memory/4588-144-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4588-146-0x0000000005370000-0x0000000005380000-memory.dmp

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memory/4588-147-0x0000000005FF0000-0x0000000006056000-memory.dmp

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memory/4588-149-0x0000000006360000-0x00000000063B0000-memory.dmp

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memory/4588-150-0x0000000005370000-0x0000000005380000-memory.dmp

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