agenttesla | 5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93

General

Target

5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe
Size

678KB
MD5

9316ff927453a87f0977c9490f748070
SHA1

a0ddfbe4639fc95ce936d489e1ce1ee886efafb8
SHA256

5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93
SHA512

283fd69d34f96be1f13820682f780198c081409662229bce1bf949c2eb8c9879d4d00d951f353f193e8f9851f8541b714a580c366726abb087400bf61fea84f8
SSDEEP

12288:qIkcxKnpHh+NyXjv0XislZzl4B0X1COYb2c/LwHT/gNH6j9V3RgQ0hNS905f/Vu5:qHJSDXf/XdcNumC

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan

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
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 2 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

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
12	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3264 set thread context of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87

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	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3388	RegAsm.exe
3388	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3388	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87
PID 3264 wrote to memory of 3388	3264	5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe	87

C:\Users\Admin\AppData\Local\Temp\5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe
"C:\Users\Admin\AppData\Local\Temp\5846ba3907ffe7a37e92ec7154c723b79ffe6b5b555912c70088e8cddccc1e93.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3264
- 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:3388

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/3264-0-0x000000007523E000-0x000000007523F000-memory.dmp

Filesize
4KB

Download
memory/3264-1-0x00000000007F0000-0x00000000008A0000-memory.dmp

Filesize
704KB

Download
memory/3264-12-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/3264-4-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/3388-7-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/3388-6-0x0000000005C00000-0x00000000061A4000-memory.dmp

Filesize
5.6MB

Download
memory/3388-5-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/3388-8-0x00000000055D0000-0x0000000005636000-memory.dmp

Filesize
408KB

Download
memory/3388-9-0x0000000006990000-0x00000000069E0000-memory.dmp

Filesize
320KB

Download
memory/3388-10-0x0000000006A80000-0x0000000006B12000-memory.dmp

Filesize
584KB

Download
memory/3388-11-0x0000000006A00000-0x0000000006A0A000-memory.dmp

Filesize
40KB

Download
memory/3388-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3388-13-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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