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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TNT Express_874993766478.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\shvkJ = "C:\\Users\\Admin\\AppData\\Roaming\\shvkJ\\shvkJ.exe"	TNT Express_874993766478.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
63	api.ipify.org
64	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 1736	1436	TNT Express_874993766478.exe	93

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	TNT Express_874993766478.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	TNT Express_874993766478.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93
PID 1436 wrote to memory of 1736	1436	TNT Express_874993766478.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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:1436
- 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:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Web Service

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\TNT Express_874993766478.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1436-139-0x0000000005550000-0x0000000005560000-memory.dmp

Filesize
64KB

Download
memory/1436-135-0x0000000005330000-0x00000000053C2000-memory.dmp

Filesize
584KB

Download
memory/1436-136-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/1436-137-0x0000000005710000-0x00000000057AC000-memory.dmp

Filesize
624KB

Download
memory/1436-138-0x0000000005550000-0x0000000005560000-memory.dmp

Filesize
64KB

Download
memory/1436-133-0x0000000000980000-0x0000000000A54000-memory.dmp

Filesize
848KB

Download
memory/1436-134-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/1736-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1736-143-0x00000000051A0000-0x0000000005206000-memory.dmp

Filesize
408KB

Download
memory/1736-144-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/1736-147-0x0000000006D20000-0x0000000006D70000-memory.dmp

Filesize
320KB

Download
memory/1736-148-0x0000000006F40000-0x0000000007102000-memory.dmp

Filesize
1.8MB

Download
memory/1736-155-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download

Analysis

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