agenttesla | cf0e9b600ad0423f919ca88086246c29c548444f6d0d193bb238b7fbc513d2fb

Analysis

max time kernel
15s
max time network
72s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 06:59

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General

Target

aplicação de cotação.exe
Size

584KB
MD5

0c39690ccaf6423656511f70f786f69b
SHA1

a18ca5f0aceadb3d439d503dd4e7a3da5ae27e4f
SHA256

7b0781645e52ad2c61df1c8b67d9d5748666f5d2f2664432bb506b4da0436637
SHA512

e582516605f628ec4ef1be65470249a27428f4ed2c8e687c896610f12dacb02fc1ff395f14af7cb45480a4ff16ed5ed532cd65065ceac3c6b048829f1d5b20f9
SSDEEP

12288:8YV6MorX7qzuC3QHO9FQVHPF51jgctJhSCx4ye5nEhrXqQwngIDHPI:bBXu9HGaVH8Cle5EhWQmgoPI

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.ultraflex.com.mx
Port:
21
Username:
[email protected]
Password:
Jgj8-p4Z]a1b

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1956-0-0x00000000003D0000-0x0000000000521000-memory.dmp	upx
behavioral1/memory/1956-19-0x00000000003D0000-0x0000000000521000-memory.dmp	upx

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
4	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1956-19-0x00000000003D0000-0x0000000000521000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 2700	1956	aplicação de cotação.exe	29

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	aplicação de cotação.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2700	RegSvcs.exe
2700	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1956	aplicação de cotação.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2700	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29
PID 1956 wrote to memory of 2700	1956	aplicação de cotação.exe	29

C:\Users\Admin\AppData\Local\Temp\aplicação de cotação.exe
"C:\Users\Admin\AppData\Local\Temp\aplicação de cotação.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\aplicação de cotação.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1956-0-0x00000000003D0000-0x0000000000521000-memory.dmp

Filesize
1.3MB

Download
memory/1956-12-0x00000000002A0000-0x00000000002A4000-memory.dmp

Filesize
16KB

Download
memory/1956-19-0x00000000003D0000-0x0000000000521000-memory.dmp

Filesize
1.3MB

Download
memory/2700-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2700-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2700-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2700-20-0x000000007418E000-0x000000007418F000-memory.dmp

Filesize
4KB

Download
memory/2700-21-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2700-22-0x000000007418E000-0x000000007418F000-memory.dmp

Filesize
4KB

Download
memory/2700-23-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download