agenttesla | d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406

General

Target

d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Size

573KB
MD5

0f658a7d511ee7205d61a7474e9c053e
SHA1

4bbb4f5c695e26ec2d11f18647cacbd8a2bfee4f
SHA256

d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406
SHA512

70a29e983661c5eb9c419823dd381824cae6767dbeca0752e49afb3d729c7f40f870ab6186a26ccc50c116ff4eb1b860309ba8b357e90d050b57477b30d7fcda

Score

10^/10

agenttesla metastealer collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.shamstone.com
Port:
587
Username:
[email protected]
Password:
fo20192020

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3816-139-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	api.ipify.org
11	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3740 set thread context of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77

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
2540	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
3816	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
3816	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Token: SeDebugPrivilege	3816	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 2540	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	75
PID 3740 wrote to memory of 2540	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	75
PID 3740 wrote to memory of 2540	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	75
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77
PID 3740 wrote to memory of 3816	3740	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe	77

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

outlook_win_path 1 IoCs

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	d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe

C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
"C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uGHGycdk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27FA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3816

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

1

T1112

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\Microsoft\CLR_v4.0_32\UsageLogs\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe.log

Filesize
1KB

MD5
6f8f3a9a57cb30e686d3355e656031e0

SHA1
acccd6befb1a2f40e662280bc5182e086a0d079b

SHA256
283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

SHA512
8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp27FA.tmp

Filesize
1KB

MD5
4a616ed88d59b4e9ebcec7d26e0cc979

SHA1
7f1a4731171136d53c7fa32ccd7bdb6c97523f18

SHA256
48b9b0c3513bbc21c8a8c6d67acbf0276b3a14b2974115bfa190296793ac94ae

SHA512
617af7357a6bc237b462e45b6c8051ab0bc6d2d1485ff65bb3e05cd869dbdb5cca78c330a6e5f5d174d297322b301071059f5398eed95a3be737d4568fac18b0

Download Submit
memory/3740-133-0x0000000005420000-0x000000000542A000-memory.dmp

Filesize
40KB

Download
memory/3740-134-0x0000000009100000-0x000000000962C000-memory.dmp

Filesize
5.2MB

Download
memory/3740-135-0x00000000098C0000-0x000000000995C000-memory.dmp

Filesize
624KB

Download
memory/3740-130-0x0000000000950000-0x00000000009E4000-memory.dmp

Filesize
592KB

Download
memory/3740-132-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/3740-131-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/3816-139-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3816-141-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/3816-142-0x00000000071F0000-0x0000000007240000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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