agenttesla | 8f756a0647aa0f1421ac081da6c16883c38c18008c96f50cd3a3545dd71af02c

General

Target

DRAFT_BL.scr
Size

671KB
MD5

04c8a416d116d67e72ab3913081d58c1
SHA1

47e52d3689f4ecd6be15ca46fcb2f2ef6c0885c3
SHA256

62fcdae1698a3257838b23279dfb2706ed7eb727cbe24e89ab2445565d45de04
SHA512

fb82d5cbbd277e74591e023ed3be0882c527d8224f152154801ac1aeaac6a0171510b88f602fde1c64ac9fd21e0b3682da68966fee0b3acc03694c0322d360ff

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
333link00win

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
333link00win

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2168-134-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

DRAFT_BL.scr

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	DRAFT_BL.scr

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

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

Suspicious use of SetThreadContext 1 IoCs

Processes:

DRAFT_BL.scr

description pid process target process

PID 2636 set thread context of 2168 2636 DRAFT_BL.scr DRAFT_BL.scr
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

Processes:

schtasks.exe

pid process

220 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

DRAFT_BL.scrDRAFT_BL.scr

pid process

2636 DRAFT_BL.scr
2168 DRAFT_BL.scr
2168 DRAFT_BL.scr
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DRAFT_BL.scrDRAFT_BL.scr

description pid process

Token: SeDebugPrivilege 2636 DRAFT_BL.scr
Token: SeDebugPrivilege 2168 DRAFT_BL.scr
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

DRAFT_BL.scr

pid process

2168 DRAFT_BL.scr

description	pid	process	target process
PID 2636 set thread context of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr

pid	process
220	schtasks.exe

pid	process
2636	DRAFT_BL.scr
2168	DRAFT_BL.scr
2168	DRAFT_BL.scr

description	pid	process
Token: SeDebugPrivilege	2636	DRAFT_BL.scr
Token: SeDebugPrivilege	2168	DRAFT_BL.scr

pid	process
2168	DRAFT_BL.scr

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

DRAFT_BL.scr

description	pid	process	target process
PID 2636 wrote to memory of 220	2636	DRAFT_BL.scr	schtasks.exe
PID 2636 wrote to memory of 220	2636	DRAFT_BL.scr	schtasks.exe
PID 2636 wrote to memory of 220	2636	DRAFT_BL.scr	schtasks.exe
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr
PID 2636 wrote to memory of 2168	2636	DRAFT_BL.scr	DRAFT_BL.scr

outlook_office_path 1 IoCs

Processes:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

outlook_win_path 1 IoCs

Processes:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr
"C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2636

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TElxBmUFdTXxW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp606F.tmp"
2⤵
- Creates scheduled task(s)
PID:220

C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr
"C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2168

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

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp606F.tmp

Filesize
1KB

MD5
5b974094c5b348ca9f197c035ec4af6d

SHA1
3860bfdb906ada2b7022bf1ff936b6e115ce3282

SHA256
0e401048bc9a2e2e87b919844e4d7cd65f3394272901b51c49775da4aec55d0b

SHA512
8e3b0ce86fc0f3af1222d15ad65f91a8ec6290a995524be2e5784ef975b6647d6ea6241b61744f1cb8c03c88da2c494b457e40c68f9f304cacec27baa4f7363e

Download Submit
memory/220-131-0x0000000000000000-mapping.dmp

Download
memory/2168-133-0x0000000000000000-mapping.dmp

Download
memory/2168-134-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2168-135-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/2636-130-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads