f520de18c104871d561a706c63f656c82be4a1b884352d0855368ea101f7e4d7

Resubmissions

05/08/2024, 18:25

240805-w2sftsxhlf 10

05/08/2024, 18:19

240805-wybznstglq 10

04/08/2024, 18:22

240804-wzvs6ssamq 10

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04/08/2024, 18:22

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General

Target

753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
Size

474KB
MD5

ce49656e048c43c60317431abd383dff
SHA1

1f84d9865cfb08aeff1f995bc1eb90a6d87a0d9d
SHA256

753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8
SHA512

070385029413bb7d8ce31e235ae6800d69fe1070596a5886b23e9b65c0eaf26bd70203afdf99ef369e4bab39ed850fcd991eb0bdf74224bf873d47ecde120fdc
SSDEEP

6144:Ezv+ezl2A8GuozDKJDe6VlWT8b9IeArZCh3Z64sgmo9VkGIb3yuaPIPXb:ET+TfWzDKJDPVle8mvrZgmUmVam

Score

10^/10

credential_access persistence privilege_escalation spyware stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\System32\\userinit.exe,C:\\Windows\\TrustedInstaller.exe"	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004
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
T1552.001

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\TrustedInstaller.exe	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
File opened for modification	C:\Windows\TrustedInstaller.exe	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
File created	C:\Windows\xdwd.dll	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
2472	WmiApSrv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2968	2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe	32
PID 2692 wrote to memory of 2968	2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe	32
PID 2692 wrote to memory of 2968	2692	753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe	32
PID 2968 wrote to memory of 1848	2968	CMD.exe	34
PID 2968 wrote to memory of 1848	2968	CMD.exe	34
PID 2968 wrote to memory of 1848	2968	CMD.exe	34

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe
"C:\Users\Admin\AppData\Local\Temp\753d66621ae168b5968406b8c2ad1845f1c9bf42f47556e7646d14e8484adeb8.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\system32\CMD.exe
  "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "TrustedInstall" /tr "C:\Windows\TrustedInstaller.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\system32\schtasks.exe
    SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "TrustedInstall" /tr "C:\Windows\TrustedInstaller.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1848

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:2472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Windows Credential Manager

T1555.004

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\xdwd.dll

Filesize
136KB

MD5
16e5a492c9c6ae34c59683be9c51fa31

SHA1
97031b41f5c56f371c28ae0d62a2df7d585adaba

SHA256
35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66

SHA512
20fd369172ef5e3e2fde388666b42e8fe5f0c2bfa338c0345f45e98af6561a249ba3ecc48c3f16efcc73f02ecb67b3ddb1e2e8f0e77d18fa00ac34e6379e50b6

Download Submit
memory/2472-39-0x00000000773E1000-0x00000000773E2000-memory.dmp

Filesize
4KB

Download
memory/2472-40-0x0000000077390000-0x0000000077539000-memory.dmp

Filesize
1.7MB

Download
memory/2472-41-0x0000000077390000-0x0000000077539000-memory.dmp

Filesize
1.7MB

Download
memory/2472-42-0x000007FEEFEA0000-0x000007FEEFEC2000-memory.dmp

Filesize
136KB

Download
memory/2472-43-0x0000000077390000-0x0000000077539000-memory.dmp

Filesize
1.7MB

Download
memory/2692-0-0x000007FEF5EB3000-0x000007FEF5EB4000-memory.dmp

Filesize
4KB

Download
memory/2692-1-0x0000000000A50000-0x0000000000ACC000-memory.dmp

Filesize
496KB

Download
memory/2692-37-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-74-0x000007FEF5EB3000-0x000007FEF5EB4000-memory.dmp

Filesize
4KB

Download
memory/2692-105-0x0000000000760000-0x000000000076C000-memory.dmp

Filesize
48KB

Download
memory/2692-226-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp

Filesize
9.9MB

Download