agenttesla | 9f5e89aa93961e166ea0aa24c0005541f58e1d352ae7c5781ce63f4369f62555

General

Target

TNT Express_874993766478.exe
Size

825KB
MD5

6f6096ddb90451da303e21b20edec778
SHA1

acbee11825e72f1be2eda845d0282d3a6b315e3b
SHA256

9f5e89aa93961e166ea0aa24c0005541f58e1d352ae7c5781ce63f4369f62555
SHA512

f48103d284ae449e2e6fc37545b65d88cd073befc24e5f909d3658cb9cb8ff3e6ca7208d28d2cc980a8d94276b1516fc4c93fa20d468844fff2aee5479d7a26b
SSDEEP

12288:EFlLKHFjcsqUWOMnVEscQaZpWS5C68pTB9PUAEoynHBLHeSABu7POBdAAN+RW6DQ:yzQQaZpWApbFWgCd5+RWKkeXz5E86x

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1081892640439672912/zNpFACvFk673ln1OzpAudejgNiaSGji8VEgtzzJ8uIJkvmL83OW3yYYB672TTqrjt1-l

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\shvkJ = "C:\\Users\\Admin\\AppData\\Roaming\\shvkJ\\shvkJ.exe"	TNT Express_874993766478.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
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 308 set thread context of 984	308	TNT Express_874993766478.exe	27

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	984	TNT Express_874993766478.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
984	TNT Express_874993766478.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27
PID 308 wrote to memory of 984	308	TNT Express_874993766478.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe

C:\Users\Admin\AppData\Local\Temp\TNT Express_874993766478.exe
"C:\Users\Admin\AppData\Local\Temp\TNT Express_874993766478.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:308
- C:\Users\Admin\AppData\Local\Temp\TNT Express_874993766478.exe
  "C:\Users\Admin\AppData\Local\Temp\TNT Express_874993766478.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:984

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

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/308-54-0x00000000013A0000-0x0000000001474000-memory.dmp

Filesize
848KB

Download
memory/308-55-0x0000000000550000-0x0000000000564000-memory.dmp

Filesize
80KB

Download
memory/308-56-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/308-57-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/308-58-0x00000000005B0000-0x00000000005BC000-memory.dmp

Filesize
48KB

Download
memory/308-59-0x00000000055A0000-0x000000000564C000-memory.dmp

Filesize
688KB

Download
memory/308-60-0x0000000000AF0000-0x0000000000B24000-memory.dmp

Filesize
208KB

Download
memory/984-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/984-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-70-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/984-71-0x0000000004E40000-0x0000000004E80000-memory.dmp

Filesize
256KB

Download
memory/984-97-0x0000000004E40000-0x0000000004E80000-memory.dmp

Filesize
256KB

Download

Analysis

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