agenttesla | 5edaf3d22e98b27241e8dc077498ed636452db338dce8285cdfc003fe8071c86

General

Target

311d4bae516d3cdec05f0dc98.exe
Size

652KB
MD5

311d4bae516d3cdec05f0dc98166fdff
SHA1

232f7cbbe0926aa0f07f73ccb50375f65b63754b
SHA256

5edaf3d22e98b27241e8dc077498ed636452db338dce8285cdfc003fe8071c86
SHA512

40adb7e1911fef7797e7d21b180927dd6258ed128c320a3c5c13d4025e723f16c334445f7d956ef9ffa013e247aefbf4f05be1c8edd3ed7fa58b05f02b343414
SSDEEP

12288:c4C6DCBwrKSSaDLsS6CsfZzUKZkqRgSd:vRNLs6GZzRHR

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.fiibearings.com
Port:
587
Username:
[email protected]
Password:
O*NjAGo4
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-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	311d4bae516d3cdec05f0dc98.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	311d4bae516d3cdec05f0dc98.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	311d4bae516d3cdec05f0dc98.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
20	api.ipify.org
21	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3092	311d4bae516d3cdec05f0dc98.exe
3092	311d4bae516d3cdec05f0dc98.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3092	311d4bae516d3cdec05f0dc98.exe
Token: SeDebugPrivilege	2688	311d4bae516d3cdec05f0dc98.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2688	311d4bae516d3cdec05f0dc98.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 908	3092	311d4bae516d3cdec05f0dc98.exe	88
PID 3092 wrote to memory of 908	3092	311d4bae516d3cdec05f0dc98.exe	88
PID 3092 wrote to memory of 908	3092	311d4bae516d3cdec05f0dc98.exe	88
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89
PID 3092 wrote to memory of 2688	3092	311d4bae516d3cdec05f0dc98.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	311d4bae516d3cdec05f0dc98.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	311d4bae516d3cdec05f0dc98.exe

C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe
"C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe
  "C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe"
  2⤵
  PID:908
- C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe
  "C:\Users\Admin\AppData\Local\Temp\311d4bae516d3cdec05f0dc98.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2688

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\311d4bae516d3cdec05f0dc98.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2688-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-147-0x00000000054E0000-0x00000000054F0000-memory.dmp

Filesize
64KB

Download
memory/2688-146-0x0000000007230000-0x00000000073F2000-memory.dmp

Filesize
1.8MB

Download
memory/2688-145-0x0000000006FB0000-0x0000000007000000-memory.dmp

Filesize
320KB

Download
memory/2688-144-0x00000000054E0000-0x00000000054F0000-memory.dmp

Filesize
64KB

Download
memory/2688-143-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/3092-136-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/3092-139-0x0000000008F00000-0x0000000008F9C000-memory.dmp

Filesize
624KB

Download
memory/3092-138-0x0000000004F50000-0x0000000004F60000-memory.dmp

Filesize
64KB

Download
memory/3092-137-0x0000000004C70000-0x0000000004C7A000-memory.dmp

Filesize
40KB

Download
memory/3092-133-0x0000000000210000-0x00000000002BA000-memory.dmp

Filesize
680KB

Download
memory/3092-135-0x0000000004CC0000-0x0000000004D52000-memory.dmp

Filesize
584KB

Download
memory/3092-134-0x0000000005330000-0x00000000058D4000-memory.dmp

Filesize
5.6MB

Download

Analysis

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