agenttesla | 9a4dba9c3d3c74e021c2a07cb5d44aee1f36f697394d729f9735cb38792a86eb

Analysis

max time kernel
109s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2023, 17:13

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General

Target
FedEx Shipment Documents.exe
Size 1.4MB
Sample230207-vrexbach32
SHA256 9a4dba9c3d3c74e021c2a07cb5d44aee1f36f697394d729f9735cb38792a86eb
MD5 73896476cf1ea64d5e1bc4f4f0370373
SHA1 1e07236b11ad013e5cee514e8f0c61e6d28fb0cf
SHA512 9279f5438a21084e43d48692b2c887fddb43ace8b418661c561225815439c0405d45f6071f8e81e0e72be792931f964af90942342b4bb0c86be18ebeff4bd189
SSDEEP 12288:8UqDV2GfvtdWRETEK8zukxhWB5OrcmiW2vcLYBtrkRLMUuhHb:FNiW2vC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot6029430300:AAFQ7GBMtGUFRsP8QhdOQS_iHzmyaFFWGvs/

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BcPuxLH = "C:\\Users\\Admin\\AppData\\Roaming\\BcPuxLH\\BcPuxLH.exe"	MSBuild.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	api.ipify.org
13	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3404 set thread context of 3480	3404	FedEx Shipment Documents.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3404	FedEx Shipment Documents.exe
3404	FedEx Shipment Documents.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	FedEx Shipment Documents.exe
Token: SeDebugPrivilege	3480	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 2320	3404	FedEx Shipment Documents.exe	82
PID 3404 wrote to memory of 2320	3404	FedEx Shipment Documents.exe	82
PID 3404 wrote to memory of 2320	3404	FedEx Shipment Documents.exe	82
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83
PID 3404 wrote to memory of 3480	3404	FedEx Shipment Documents.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\FedEx Shipment Documents.exe
"C:\Users\Admin\AppData\Local\Temp\FedEx Shipment Documents.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  PID:2320
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3404-132-0x0000000000E10000-0x0000000000F72000-memory.dmp

Download

memory/3404-133-0x0000000005AA0000-0x0000000005AC2000-memory.dmp

Download

memory/3480-136-0x0000000000400000-0x0000000000430000-memory.dmp

Download

memory/3480-137-0x0000000005C20000-0x00000000061C4000-memory.dmp

Download

memory/3480-138-0x0000000005560000-0x00000000055C6000-memory.dmp

Download

memory/3480-139-0x0000000006D50000-0x0000000006DE2000-memory.dmp

Download

memory/3480-140-0x0000000006D00000-0x0000000006D0A000-memory.dmp

Download

memory/3480-141-0x0000000006FC0000-0x0000000007010000-memory.dmp

Download

memory/3480-142-0x00000000071E0000-0x00000000073A2000-memory.dmp

Download