agenttesla | 816ae02b0e8d286ed276d179cfd2e256e02f9e78d8c5dc74df69655417b9d558

General

Target

Rfq.exe
Size

729KB
MD5

c300a4e31aba499c460b6c2ced1c4edf
SHA1

242e54861affc8fc58d5edac0bbbda926ecba96c
SHA256

816ae02b0e8d286ed276d179cfd2e256e02f9e78d8c5dc74df69655417b9d558
SHA512

6ab562461bc8bf1f6b33c911459d99dabd4cf9efaf4e3dc78a27b390f4a0000a111dc7954f7b54454499e39772f0795a5b442a8260b84b42c0d4e9d03faecbac

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
bbbb2016

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1888-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1888-5-0x0000000000446B4E-mapping.dmp	family_agenttesla
behavioral1/memory/1888-7-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1888-8-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
1888	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
1516	Rfq.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 1888	1516	Rfq.exe	24

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1516	Rfq.exe
1516	Rfq.exe
1516	Rfq.exe
1888	InstallUtil.exe
1888	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1516	Rfq.exe
Token: SeDebugPrivilege	1888	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24
PID 1516 wrote to memory of 1888	1516	Rfq.exe	24

C:\Users\Admin\AppData\Local\Temp\Rfq.exe
"C:\Users\Admin\AppData\Local\Temp\Rfq.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1888

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

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1888-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1888-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1888-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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