2cb04eecfa244cba67a5bb51021c39605e37a75cd8231be675944c50443cc85e

Analysis

max time kernel
132s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
16/03/2022, 07:35

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General

Target
PO DRAFT-Mt ch.exe
Size 343KB
Sample220316-jep1zaaee8
SHA256 2cb04eecfa244cba67a5bb51021c39605e37a75cd8231be675944c50443cc85e
MD5 ea995b969b0731be0cd09d32eb154cc9
SHA1 8608eb52418485aa6cc3c19871599e17c09d4b6a
SHA512 67a3477504eb4ab03e7068281e7a2ea1de78b89de6cb19d662e976a1de29c93d82b2268d120ae6cf7253ac90c924014d955298eb4cbba1988966ec572fa2a4b8
MD5 SHA1 SHA512

Score

10^/10

collection persistence spyware stealer

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.tcfmonline.com
Port
587
Username
[email protected]
Password
M0ch@609

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2624	myyphgmqe.exe
3812	myyphgmqe.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-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	myyphgmqe.exe
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	myyphgmqe.exe
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	myyphgmqe.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-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fbpsge = "C:\\Users\\Admin\\AppData\\Roaming\\tunyjuixelqt\\stsgobepqqxw.exe"	myyphgmqe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 3812	2624	myyphgmqe.exe	89

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3812	myyphgmqe.exe
3812	myyphgmqe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3812	myyphgmqe.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 2624	632	PO DRAFT-Mt ch.exe	87
PID 632 wrote to memory of 2624	632	PO DRAFT-Mt ch.exe	87
PID 632 wrote to memory of 2624	632	PO DRAFT-Mt ch.exe	87
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89
PID 2624 wrote to memory of 3812	2624	myyphgmqe.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	myyphgmqe.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	myyphgmqe.exe

C:\Users\Admin\AppData\Local\Temp\PO DRAFT-Mt ch.exe
"C:\Users\Admin\AppData\Local\Temp\PO DRAFT-Mt ch.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:632
- C:\Users\Admin\AppData\Local\Temp\myyphgmqe.exe
  C:\Users\Admin\AppData\Local\Temp\myyphgmqe.exe C:\Users\Admin\AppData\Local\Temp\ucmdnethpj
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Users\Admin\AppData\Local\Temp\myyphgmqe.exe
    C:\Users\Admin\AppData\Local\Temp\myyphgmqe.exe C:\Users\Admin\AppData\Local\Temp\ucmdnethpj
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2624-142-0x0000000000D90000-0x0000000000D92000-memory.dmp

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memory/3812-143-0x0000000073930000-0x00000000740E0000-memory.dmp

Download

memory/3812-146-0x00000000051C3000-0x00000000051C4000-memory.dmp

Download

memory/3812-140-0x0000000000400000-0x000000000044A000-memory.dmp

Download

memory/3812-144-0x00000000051C0000-0x00000000051C1000-memory.dmp

Download

memory/3812-138-0x0000000000400000-0x000000000044A000-memory.dmp

Download

memory/3812-145-0x00000000051C2000-0x00000000051C3000-memory.dmp

Download

memory/3812-147-0x0000000005780000-0x0000000005D24000-memory.dmp

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memory/3812-141-0x0000000000400000-0x000000000044A000-memory.dmp

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memory/3812-148-0x00000000051C4000-0x00000000051C5000-memory.dmp

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memory/3812-149-0x00000000052B0000-0x000000000534C000-memory.dmp

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memory/3812-150-0x00000000061F0000-0x0000000006256000-memory.dmp

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memory/3812-151-0x0000000006750000-0x00000000067A0000-memory.dmp

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memory/3812-152-0x0000000006980000-0x0000000006A12000-memory.dmp

Download

memory/3812-153-0x0000000006900000-0x000000000690A000-memory.dmp

Download