agenttesla | 5632ae27980cf1407b52fe4a9da06e30cec16937a75971b4df6d875c14278c8d

General

Target

tmp.exe
Size

807KB
MD5

0371dcc69b7805359ccadcce117e8b35
SHA1

c1d897f058d568519a80f28080689e32121aec15
SHA256

5632ae27980cf1407b52fe4a9da06e30cec16937a75971b4df6d875c14278c8d
SHA512

e6312f6f7c5e6a722c79b288339ec772de40eb780c3f05effd1f7179733d9ea7963a9938479c4a063c7824e1b166dfcbce35215bd2b0a5ebf65f99e6f56ac310
SSDEEP

24576:luDJTkwPh1RnwqU94N3JHFJNOf9oE1Vp:8DFkwPpnbW4ZHbNOVo

Score

10^/10

agenttesla collection 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
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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.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
70	api.ipify.org
71	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 1852	4568	tmp.exe	103

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	tmp.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103
PID 4568 wrote to memory of 1852	4568	tmp.exe	103

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1852

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\tmp.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1852-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1852-147-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/1852-146-0x0000000007370000-0x0000000007532000-memory.dmp

Filesize
1.8MB

Download
memory/1852-145-0x0000000007150000-0x00000000071A0000-memory.dmp

Filesize
320KB

Download
memory/1852-144-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/1852-143-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/4568-136-0x0000000005430000-0x000000000543A000-memory.dmp

Filesize
40KB

Download
memory/4568-139-0x0000000007FF0000-0x000000000808C000-memory.dmp

Filesize
624KB

Download
memory/4568-138-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/4568-137-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/4568-133-0x0000000000900000-0x00000000009CE000-memory.dmp

Filesize
824KB

Download
memory/4568-135-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/4568-134-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download

Analysis

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