agenttesla | dc9592028314f25ba440ef8629468e39714188cdd0d681e76d2e8222bec8978c

General

Target

6d2bef0ad88a8c8c0276790044de1d09.exe
Size

632KB
MD5

6d2bef0ad88a8c8c0276790044de1d09
SHA1

612b2ba160c73fcc9f1eb27472ebdbfe50c7c567
SHA256

dc9592028314f25ba440ef8629468e39714188cdd0d681e76d2e8222bec8978c
SHA512

7d30addf59f8115bdc8a43107aaf0f53cb12b5a1dd8e4f785e867d98d5973575baa2251a25b6897ad210fb3c43595945a6e22f5c4d6ab264bff2f765757b1347
SSDEEP

12288:wBoz8Ci9nab2YHcZvLQ8d4+jv7X0jgBqEBvluijNLegQVtb:wBjn02RR4+jTX0SBtu8

Score

10^/10

agenttesla redline collection infostealer keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.valvulasthermovalve.cl
Port:
21
Username:
[email protected]
Password:
LILKOOLL14!!

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Detects Redline Stealer samples 2 IoCs

This rule detects the presence of Redline Stealer samples based on their unique strings.

stealer

resource	yara_rule
behavioral2/memory/1304-143-0x0000000005570000-0x00000000055D6000-memory.dmp	redline_stealer
behavioral2/memory/1304-147-0x0000000007470000-0x0000000007632000-memory.dmp	redline_stealer

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline
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-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6d2bef0ad88a8c8c0276790044de1d09.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6d2bef0ad88a8c8c0276790044de1d09.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6d2bef0ad88a8c8c0276790044de1d09.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
32	api.ipify.org
35	api.ipify.org
37	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5064 set thread context of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	6d2bef0ad88a8c8c0276790044de1d09.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86
PID 5064 wrote to memory of 1304	5064	6d2bef0ad88a8c8c0276790044de1d09.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6d2bef0ad88a8c8c0276790044de1d09.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6d2bef0ad88a8c8c0276790044de1d09.exe

C:\Users\Admin\AppData\Local\Temp\6d2bef0ad88a8c8c0276790044de1d09.exe
"C:\Users\Admin\AppData\Local\Temp\6d2bef0ad88a8c8c0276790044de1d09.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Users\Admin\AppData\Local\Temp\6d2bef0ad88a8c8c0276790044de1d09.exe
  "C:\Users\Admin\AppData\Local\Temp\6d2bef0ad88a8c8c0276790044de1d09.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1304

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\6d2bef0ad88a8c8c0276790044de1d09.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1304-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1304-147-0x0000000007470000-0x0000000007632000-memory.dmp

Filesize
1.8MB

Download
memory/1304-146-0x0000000006F60000-0x0000000006FB0000-memory.dmp

Filesize
320KB

Download
memory/1304-145-0x00000000055E0000-0x00000000055F0000-memory.dmp

Filesize
64KB

Download
memory/1304-144-0x00000000055E0000-0x00000000055F0000-memory.dmp

Filesize
64KB

Download
memory/1304-143-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/5064-136-0x0000000005050000-0x000000000505A000-memory.dmp

Filesize
40KB

Download
memory/5064-139-0x000000000A560000-0x000000000A5FC000-memory.dmp

Filesize
624KB

Download
memory/5064-138-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/5064-137-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/5064-133-0x00000000005F0000-0x0000000000694000-memory.dmp

Filesize
656KB

Download
memory/5064-135-0x00000000050D0000-0x0000000005162000-memory.dmp

Filesize
584KB

Download
memory/5064-134-0x00000000057B0000-0x0000000005D54000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing