agenttesla | cef9ee760a9e4e3d132a05164243a878622db8cb86d26753e10a4430312d3486

General

Target

INVOICE.exe
Size

996KB
MD5

f1a3492ad9b9f7134c4954a565478e6f
SHA1

276950b89f2a9a0b1689d4aa14f6604075c2bd44
SHA256

cef9ee760a9e4e3d132a05164243a878622db8cb86d26753e10a4430312d3486
SHA512

6f0bbaaca449f188716ba1643535f6edc85fe1510e6a2c190952158e502774384d5a7532172a320fb8c204377a249e79b791f0a3487863d9e43b28f2fff02adc
SSDEEP

12288:IrBk763UvVOD4vNfHs+w2AEOUdS6B7R2xuSH5MfPboK8:IruoU9lF42omQxu1Hg

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6048733251:AAHRY3bwFxY_dCpUKVaxkoIu25MIjLFtqRA/

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-1-5-21-4102714285-680558483-2379744688-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-4102714285-680558483-2379744688-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-4102714285-680558483-2379744688-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 1448	1100	INVOICE.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1448	INVOICE.exe
1448	INVOICE.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	INVOICE.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28
PID 1100 wrote to memory of 1448	1100	INVOICE.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4102714285-680558483-2379744688-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4102714285-680558483-2379744688-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/1100-54-0x0000000000F60000-0x0000000001060000-memory.dmp

Filesize
1024KB

Download
memory/1100-55-0x0000000004F80000-0x0000000004FC0000-memory.dmp

Filesize
256KB

Download
memory/1100-56-0x0000000000380000-0x000000000038C000-memory.dmp

Filesize
48KB

Download
memory/1100-57-0x0000000004F80000-0x0000000004FC0000-memory.dmp

Filesize
256KB

Download
memory/1100-58-0x0000000000530000-0x000000000053C000-memory.dmp

Filesize
48KB

Download
memory/1100-59-0x0000000005200000-0x000000000526A000-memory.dmp

Filesize
424KB

Download
memory/1448-60-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1448-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-67-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-69-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1448-70-0x0000000004E30000-0x0000000004E70000-memory.dmp

Filesize
256KB

Download
memory/1448-71-0x0000000004E30000-0x0000000004E70000-memory.dmp

Filesize
256KB

Download

Analysis

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