agenttesla | 6af7e3b46a5823bfcca2b71c0f04c392257884660964dfa03e1afdafb7243a89

General

Target

Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe
Size

2.5MB
MD5

70de418c59709a8703cb46deee36bde6
SHA1

69ca92a03fc7d986f686c0acafc51dcf515c2f7c
SHA256

9da74e41306059077f155debea5f44a5969e79297c9de44a4e355e4bb68b0536
SHA512

cbeedd7aa302b1db4de7608f8f0c35aec37c38421979b6ae43eb759e13129b1e5343e343ebe0910cb8290fb91200a91fd7796a61aaac9e09c271dbdc352ca315
SSDEEP

49152:1bdYAm4zEbdYAm4zXbdYAm4zKbdYAm4zFbdYAm4zB3An3AI3AJ3AlO3mMM7aApu6:FdrWdrrdrAdr1drlA3AaAtAgu7au

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.controlfire.com.mx
Port:
21
Username:
[email protected]
Password:
0a4XlE=4t8mz

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

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

flow	ioc
13	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3708 set thread context of 3188	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3188	regasm.exe
3188	regasm.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe
3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3188	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3708 wrote to memory of 4504	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	83
PID 3708 wrote to memory of 4504	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	83
PID 3708 wrote to memory of 4504	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	83
PID 3708 wrote to memory of 4504	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	83
PID 3708 wrote to memory of 3188	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	84
PID 3708 wrote to memory of 3188	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	84
PID 3708 wrote to memory of 3188	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	84
PID 3708 wrote to memory of 3188	3708	Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe	84

C:\Users\Admin\AppData\Local\Temp\Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe
"C:\Users\Admin\AppData\Local\Temp\Comprobante_swift_9767864574756346523cc43546576ds8977564534253465789.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3708
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:4504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3188-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3188-36-0x0000000006B40000-0x0000000006B4A000-memory.dmp

Filesize
40KB

Download
memory/3188-26-0x0000000077642000-0x0000000077643000-memory.dmp

Filesize
4KB

Download
memory/3188-37-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/3188-28-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/3188-23-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/3188-35-0x0000000006BB0000-0x0000000006C42000-memory.dmp

Filesize
584KB

Download
memory/3188-34-0x0000000006AC0000-0x0000000006B10000-memory.dmp

Filesize
320KB

Download
memory/3188-38-0x00000000744E0000-0x0000000074C90000-memory.dmp

Filesize
7.7MB

Download
memory/3188-33-0x00000000744E0000-0x0000000074C90000-memory.dmp

Filesize
7.7MB

Download
memory/3188-27-0x0000000000F90000-0x0000000000F91000-memory.dmp

Filesize
4KB

Download
memory/3188-32-0x00000000057C0000-0x0000000005826000-memory.dmp

Filesize
408KB

Download
memory/3188-31-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/3708-30-0x0000000075290000-0x00000000753ED000-memory.dmp

Filesize
1.4MB

Download
memory/3708-3-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/3708-2-0x0000000077642000-0x0000000077643000-memory.dmp

Filesize
4KB

Download
memory/3708-24-0x0000000075290000-0x00000000753ED000-memory.dmp

Filesize
1.4MB

Download
memory/3708-8-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/3708-10-0x0000000075290000-0x00000000753ED000-memory.dmp

Filesize
1.4MB

Download
memory/3708-9-0x00000000752C1000-0x00000000752C2000-memory.dmp

Filesize
4KB

Download

Analysis

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