agenttesla | 01b10e69f2bf67fdd929c4cb584dd248a71ad447eb460787f9e2ba34129ac4c3

Resubmissions

27/12/2022, 14:34

221227-rxqn8afa54 10

27/12/2022, 14:34

221227-rxfh9afa52 10

25/12/2022, 11:46

221225-nxcwksee8w 10

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2022, 11:46

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General

Target

f2335865a426507b47ecf5e37dcae9a3.exe
Size

860KB
MD5

f2335865a426507b47ecf5e37dcae9a3
SHA1

7ccf56c9c48ffc911ac80ddf5240a42c99f83e33
SHA256

57901cf97d0ab4c57f8b4927c75bd8761182b5ddb80d09bb917aab71ae68d7c6
SHA512

67fd0fb2b872446957c570fb3418ee41363b8b0a6362819c36cef81454acadb2892e31dab2f7760a2f848c92b2b61b8ad5012a6781281f6cb009815c9424e208
SSDEEP

24576:EsFdELpCybniAU6cH80ru/71mnMOrYH1ocO:FFdELpCybniAU6Gu/71mndM1jO

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
server323.web-hosting.com
Port:
587
Username:
[email protected]
Password:
turkey@123
Email To:
[email protected]

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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f2335865a426507b47ecf5e37dcae9a3.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f2335865a426507b47ecf5e37dcae9a3.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f2335865a426507b47ecf5e37dcae9a3.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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RMBJLaF = "C:\\Users\\Admin\\AppData\\Roaming\\RMBJLaF\\RMBJLaF.exe"	f2335865a426507b47ecf5e37dcae9a3.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
32	api.ipify.org
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4792 set thread context of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1160	f2335865a426507b47ecf5e37dcae9a3.exe
1160	f2335865a426507b47ecf5e37dcae9a3.exe
1160	f2335865a426507b47ecf5e37dcae9a3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1160	f2335865a426507b47ecf5e37dcae9a3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89
PID 4792 wrote to memory of 1160	4792	f2335865a426507b47ecf5e37dcae9a3.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f2335865a426507b47ecf5e37dcae9a3.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f2335865a426507b47ecf5e37dcae9a3.exe

C:\Users\Admin\AppData\Local\Temp\f2335865a426507b47ecf5e37dcae9a3.exe
"C:\Users\Admin\AppData\Local\Temp\f2335865a426507b47ecf5e37dcae9a3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Users\Admin\AppData\Local\Temp\f2335865a426507b47ecf5e37dcae9a3.exe
  "C:\Users\Admin\AppData\Local\Temp\f2335865a426507b47ecf5e37dcae9a3.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f2335865a426507b47ecf5e37dcae9a3.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1160-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1160-140-0x0000000006450000-0x00000000064B6000-memory.dmp

Filesize
408KB

Download
memory/1160-141-0x0000000007680000-0x00000000076D0000-memory.dmp

Filesize
320KB

Download
memory/4792-132-0x0000000000DB0000-0x0000000000E8E000-memory.dmp

Filesize
888KB

Download
memory/4792-133-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/4792-134-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/4792-135-0x0000000005700000-0x000000000570A000-memory.dmp

Filesize
40KB

Download
memory/4792-136-0x0000000008530000-0x00000000085CC000-memory.dmp

Filesize
624KB

Download