agenttesla | 65370cfa1e08f458d53cb661cf02054d9324f155a7bbf6505b4da5c2f9492385

General

Target

NEW PO - 4610926543.exe
Size

785KB
MD5

440cd930743d1b0c91c6d7396eaf23e0
SHA1

f2cbcde2047dbba83c4ba61543c1a10e4286cafc
SHA256

65370cfa1e08f458d53cb661cf02054d9324f155a7bbf6505b4da5c2f9492385
SHA512

997d4f9e3649d6daff61b54da347e4c79e61ecc8000ce57219800db7222c7dbded6ee2a59e93f71fd1650cf1fa7ca594cb22cdb9a04ac3f6a8e21b211ee48148
SSDEEP

24576:50biRoSErVxIE5+wqAWxE3YSKeE6xna9I6vfY:5y4oRrjIw3qjnReP+vfY

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.nutiribio.com
Port:
587
Username:
[email protected]
Password:
zGNVO(l5
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO - 4610926543.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO - 4610926543.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO - 4610926543.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
30	api.ipify.org
31	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1472 set thread context of 1456	1472	NEW PO - 4610926543.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1456	NEW PO - 4610926543.exe
1456	NEW PO - 4610926543.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	NEW PO - 4610926543.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90
PID 1472 wrote to memory of 1456	1472	NEW PO - 4610926543.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO - 4610926543.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO - 4610926543.exe

C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe
"C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NEW PO - 4610926543.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1456-143-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1456-149-0x0000000005830000-0x0000000005840000-memory.dmp

Filesize
64KB

Download
memory/1456-148-0x0000000006E20000-0x0000000006E70000-memory.dmp

Filesize
320KB

Download
memory/1456-147-0x0000000005830000-0x0000000005840000-memory.dmp

Filesize
64KB

Download
memory/1456-146-0x0000000005780000-0x00000000057E6000-memory.dmp

Filesize
408KB

Download
memory/1472-139-0x0000000005080000-0x000000000508A000-memory.dmp

Filesize
40KB

Download
memory/1472-142-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/1472-141-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/1472-140-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/1472-136-0x0000000000620000-0x00000000006EA000-memory.dmp

Filesize
808KB

Download
memory/1472-138-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/1472-137-0x00000000055A0000-0x0000000005B44000-memory.dmp

Filesize
5.6MB

Download

Analysis

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