agenttesla | b01fa74e309cff0ee5f5a43a9a908df88a9577d5e21fe251361fa1a89addba06

General

Target

DOC.exe
Size

912KB
MD5

cf458db8fe54a5ea272af51fec36de4e
SHA1

5c806224e02bc9a8c0c35c45a0a56306096939dd
SHA256

b01fa74e309cff0ee5f5a43a9a908df88a9577d5e21fe251361fa1a89addba06
SHA512

4b7a5c9c5fa15935ed3888420f82b59cb964831b423c5f7639b4198204fe5ccc9d9389b5fbcb5032ce8fefde3c5a6bb378ae4cace3cf5ba63541935168a95e02

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.varda.com.tr
Port:
587
Username:
[email protected]
Password:
varda9997929

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/796-4-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/796-5-0x0000000000446E1E-mapping.dmp	family_agenttesla
behavioral1/memory/796-6-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/796-7-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	DOC.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	DOC.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1164 set thread context of 796	1164	DOC.exe	26

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1580	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1896	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
796	DOC.exe
796	DOC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	796	DOC.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 1580	1164	DOC.exe	24
PID 1164 wrote to memory of 1580	1164	DOC.exe	24
PID 1164 wrote to memory of 1580	1164	DOC.exe	24
PID 1164 wrote to memory of 1580	1164	DOC.exe	24
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 1164 wrote to memory of 796	1164	DOC.exe	26
PID 796 wrote to memory of 1896	796	DOC.exe	30
PID 796 wrote to memory of 1896	796	DOC.exe	30
PID 796 wrote to memory of 1896	796	DOC.exe	30
PID 796 wrote to memory of 1896	796	DOC.exe	30

C:\Users\Admin\AppData\Local\Temp\DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DOC.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VrAdzNwBSmJrr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC2F0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1580
- C:\Users\Admin\AppData\Local\Temp\DOC.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:796
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:1896

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/796-4-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/796-6-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/796-7-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads