20b3dc9a088153eb974afee08192cd0b78c96b847e5705cea818c50043c3bddf

Resubmissions

21/01/2025, 14:05

250121-rd357sxper 8

20/01/2025, 21:06

250120-zx14ysyqdn 10

Analysis

max time kernel
213s
max time network
277s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
21/01/2025, 14:05

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General

Target

file01.ps1
Size

35B
MD5

684c57981b5ed26047c34aee9a2453a1
SHA1

2e154e9c0e6abc9a2bc852aeb941fe5d3117fa3e
SHA256

20b3dc9a088153eb974afee08192cd0b78c96b847e5705cea818c50043c3bddf
SHA512

cca14c6add1e0dfed54e0fe425489bf430bcc438acf386fe4d68cf040fbe55e9997b0d85bcd8cca56e66721292497894b599c919f3af248b4a2ef8a1d112c51b

Score

8^/10

discovery execution

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
2	3400	powershell.exe
3	3400	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
236	updater.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 236 set thread context of 840	236	updater.exe	80

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3400	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3400	powershell.exe
3400	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3400	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 236	3400	powershell.exe	79
PID 3400 wrote to memory of 236	3400	powershell.exe	79
PID 3400 wrote to memory of 236	3400	powershell.exe	79
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80
PID 236 wrote to memory of 840	236	updater.exe	80

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\file01.ps1
1⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\b6bc763a-914a-4d0e-84b0-5acfb7365b63\updater.exe
  "C:\Users\Admin\AppData\Local\b6bc763a-914a-4d0e-84b0-5acfb7365b63\updater.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:236
- - C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
    "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fkc44in1.2j5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\b6bc763a-914a-4d0e-84b0-5acfb7365b63\updater.exe

Filesize
5.3MB

MD5
3c096c52d1f6250c1f809cf41fedc0ba

SHA1
3337edd136b544db4e43b0b1fce2c8cf853677e5

SHA256
9ed2684928ee595c5909962c5959509d3e9ea59dd9e048e696d4f20d7b9aca07

SHA512
fed9c2b0087a933374252dcaf7c234f7c8ee0e1428054ef0e1a1b2c51be1cd8483ea90b3923ea4223ea5b1765e1009dd5261a2f1ae01b43d39444deca548705f

Download Submit
memory/840-82-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/840-81-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/840-80-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/840-79-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/840-78-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3400-11-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-16-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-15-0x00007FF8EB653000-0x00007FF8EB655000-memory.dmp

Filesize
8KB

Download
memory/3400-75-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-77-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-13-0x000001CCF6B30000-0x000001CCF72D6000-memory.dmp

Filesize
7.6MB

Download
memory/3400-12-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-0-0x00007FF8EB653000-0x00007FF8EB655000-memory.dmp

Filesize
8KB

Download
memory/3400-10-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download
memory/3400-9-0x000001CCF5F90000-0x000001CCF5FB2000-memory.dmp

Filesize
136KB

Download
memory/3400-87-0x00007FF8EB650000-0x00007FF8EC112000-memory.dmp

Filesize
10.8MB

Download