agenttesla | 689930bf57f7faaa61dd5552a1150fe04c7b45ec599110a43713c7a35cd92e1b

General

Target

DHL KULI500796821_INV DOCUMENTS.exe
Size

148KB
MD5

70f47118c2955aba77f24e1181e54b7e
SHA1

7a83ddc5d027e822faaebe11a48b3ce1587835a1
SHA256

689930bf57f7faaa61dd5552a1150fe04c7b45ec599110a43713c7a35cd92e1b
SHA512

6afb9f6d5a4b07efe868553fdf4ef50770a54dca610dcefdce1df63a44abe0b9e50664475dab61566f6ef241d8b4e7692290a49ec7346c5c20b9e8dca8727273
SSDEEP

3072:eQ0+tNkT60Xf8eIayqKrhURGf5dMtJvbxUOdyFmiMIkFHlMi:ORfKVP5GWuEulM

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2100759405:AAFzA0s7LpNOhvzQJo2bUlDpzSqnB8ir69o/

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-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skulcz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bfhdm\\Skulcz.exe\""	DHL KULI500796821_INV DOCUMENTS.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
42	api.ipify.org
43	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1280 set thread context of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4392	InstallUtil.exe
4392	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	DHL KULI500796821_INV DOCUMENTS.exe
Token: SeDebugPrivilege	4392	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93
PID 1280 wrote to memory of 4392	1280	DHL KULI500796821_INV DOCUMENTS.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\DHL KULI500796821_INV DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DHL KULI500796821_INV DOCUMENTS.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1280-133-0x0000000000D50000-0x0000000000D7A000-memory.dmp

Filesize
168KB

Download
memory/1280-134-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/1280-135-0x0000000005790000-0x0000000005822000-memory.dmp

Filesize
584KB

Download
memory/1280-136-0x0000000005730000-0x000000000573A000-memory.dmp

Filesize
40KB

Download
memory/1280-137-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/1280-138-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/1280-139-0x000000000A0E0000-0x000000000A102000-memory.dmp

Filesize
136KB

Download
memory/1280-140-0x000000003FD10000-0x000000003FD76000-memory.dmp

Filesize
408KB

Download
memory/4392-142-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4392-144-0x0000000003420000-0x0000000003430000-memory.dmp

Filesize
64KB

Download
memory/4392-145-0x0000000003420000-0x0000000003430000-memory.dmp

Filesize
64KB

Download
memory/4392-146-0x0000000006E60000-0x0000000006EB0000-memory.dmp

Filesize
320KB

Download
memory/4392-147-0x0000000007080000-0x0000000007242000-memory.dmp

Filesize
1.8MB

Download

Analysis

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