agenttesla | 245dab3947c242814248eb6b3fa73560d4082082fc536f9d042c7f41ea99e9c4

General

Target

INQUIRY - 1.exe
Size

566KB
MD5

1eb47fc33521f1d2048f1f711c2d397e
SHA1

81aadf114b034d534cf41468a57d72c0513b8c5d
SHA256

245dab3947c242814248eb6b3fa73560d4082082fc536f9d042c7f41ea99e9c4
SHA512

a781bab0c017e475a7063520e2043854d00d1384aa9209f432d516ddee632f601b5366c290db60fd88dff0aca11204efbdf8a0a0a1c884657cd91a1f977e8288

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.eidtravel.com
Port:
587
Username:
[email protected]
Password:
Core2020C

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/1736-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-5-0x000000000044704E-mapping.dmp	family_agenttesla
behavioral1/memory/1736-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-7-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	INQUIRY - 1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	INQUIRY - 1.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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	INQUIRY - 1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	INQUIRY - 1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 388 set thread context of 1736	388	INQUIRY - 1.exe	29

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
1828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
388	INQUIRY - 1.exe
388	INQUIRY - 1.exe
1736	INQUIRY - 1.exe
1736	INQUIRY - 1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	388	INQUIRY - 1.exe
Token: SeDebugPrivilege	1736	INQUIRY - 1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	INQUIRY - 1.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 1828	388	INQUIRY - 1.exe	27
PID 388 wrote to memory of 1828	388	INQUIRY - 1.exe	27
PID 388 wrote to memory of 1828	388	INQUIRY - 1.exe	27
PID 388 wrote to memory of 1828	388	INQUIRY - 1.exe	27
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29
PID 388 wrote to memory of 1736	388	INQUIRY - 1.exe	29

C:\Users\Admin\AppData\Local\Temp\INQUIRY - 1.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY - 1.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:388
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD80.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1828
- C:\Users\Admin\AppData\Local\Temp\INQUIRY - 1.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1736-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads