agenttesla | 8e4a644ab5ad02854fef51a8167107c8b5bd4fe503d8bf84fb08dc78fcd9f53b

General

Target

b22bfaedfb1e0c435f49909cdb14ff08.exe
Size

762KB
MD5

b22bfaedfb1e0c435f49909cdb14ff08
SHA1

12bede9cc86635f520a3fe6b006a4a7dc8858210
SHA256

8e4a644ab5ad02854fef51a8167107c8b5bd4fe503d8bf84fb08dc78fcd9f53b
SHA512

149487ff2758b3ed623cbc7f5c12d34dd1e1ef7be104b822796678ab34225af15d59a63d98cef1a162d9ba974484c2cf3bedba73163d756d04ade0297e0c0fe2
SSDEEP

12288:0XtR7l7xdvo/MdyrhFgtDsuBHsSj5J4+saBGei+LTkNIcYt0MDWBLLr/stiA+OFl:0t9BqmycgiH75BDkNIcRoWxqiA+yo6vb

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
kjbcvllgudkhmgln
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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b22bfaedfb1e0c435f49909cdb14ff08.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b22bfaedfb1e0c435f49909cdb14ff08.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b22bfaedfb1e0c435f49909cdb14ff08.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
46	api.ipify.org
47	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3196 set thread context of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4968	b22bfaedfb1e0c435f49909cdb14ff08.exe
4968	b22bfaedfb1e0c435f49909cdb14ff08.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	b22bfaedfb1e0c435f49909cdb14ff08.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4968	b22bfaedfb1e0c435f49909cdb14ff08.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92
PID 3196 wrote to memory of 4968	3196	b22bfaedfb1e0c435f49909cdb14ff08.exe	92

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	b22bfaedfb1e0c435f49909cdb14ff08.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	b22bfaedfb1e0c435f49909cdb14ff08.exe

C:\Users\Admin\AppData\Local\Temp\b22bfaedfb1e0c435f49909cdb14ff08.exe
"C:\Users\Admin\AppData\Local\Temp\b22bfaedfb1e0c435f49909cdb14ff08.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\b22bfaedfb1e0c435f49909cdb14ff08.exe
  "C:\Users\Admin\AppData\Local\Temp\b22bfaedfb1e0c435f49909cdb14ff08.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4968

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b22bfaedfb1e0c435f49909cdb14ff08.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3196-139-0x0000000007170000-0x000000000720C000-memory.dmp

Filesize
624KB

Download
memory/3196-135-0x0000000005530000-0x00000000055C2000-memory.dmp

Filesize
584KB

Download
memory/3196-136-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/3196-137-0x0000000005750000-0x0000000005760000-memory.dmp

Filesize
64KB

Download
memory/3196-138-0x0000000005750000-0x0000000005760000-memory.dmp

Filesize
64KB

Download
memory/3196-133-0x0000000000B90000-0x0000000000C52000-memory.dmp

Filesize
776KB

Download
memory/3196-134-0x0000000005AE0000-0x0000000006084000-memory.dmp

Filesize
5.6MB

Download
memory/4968-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4968-143-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/4968-144-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4968-145-0x00000000066D0000-0x0000000006720000-memory.dmp

Filesize
320KB

Download
memory/4968-146-0x00000000068F0000-0x0000000006AB2000-memory.dmp

Filesize
1.8MB

Download
memory/4968-147-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download

Analysis

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