ce143c9fbf5934660cd61c63796aa00759b07ea5d65b66cd2c05e85239781ad8

Analysis

max time kernel
1669s
max time network
1668s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
14-03-2024 13:31

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General

Target

file_x64x86.rar
Size

10.5MB
MD5

c0e2e876025cff704f44762e4eef46df
SHA1

53cfde674e868429276dca6c9c4e783ff98b9a8f
SHA256

ce143c9fbf5934660cd61c63796aa00759b07ea5d65b66cd2c05e85239781ad8
SHA512

3c1a3ff3c74b16e1e2c3199f27770ec11fb92d7c2718ee2b0cccbb2c03e8017f3b41ca1d3c08ce03c0e5b594a361de920f7ab08d5722e07e8555c2908c76a694
SSDEEP

196608:XSbIWDiYJg1Z3mG//s6tgqRHqCo7eE8Aj5hjeeEit7w8AmxaPcaY9fTE:WTiYe1Z3ms06tg8H5OC8Gp/Y54

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Panther\UnattendGC\setupact.log	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\setuperr.log	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagerr.xml	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagwrn.xml	UserOOBEBroker.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
908	OpenWith.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	3296	7zFM.exe
Token: 35	3296	7zFM.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3296	7zFM.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
908	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 3296	2548	cmd.exe	82
PID 2548 wrote to memory of 3296	2548	cmd.exe	82

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\file_x64x86.rar
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Program Files\7-Zip\7zFM.exe
  "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\file_x64x86.rar"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:3296

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
1⤵
PID:4272

C:\Windows\System32\oobe\UserOOBEBroker.exe
C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
1⤵
- Drops file in Windows directory
PID:3676

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
1⤵
PID:4476

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DevicesFlow -s DevicesFlowUserSvc
1⤵
PID:2336

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
1⤵
PID:1608

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\logs\Common\FileCoAuth-2024-3-14.140.4476.1.odl

Filesize
706B

MD5
24d31f81c5945c384407b19f637fe696

SHA1
303ee69f18593c5eb3fc079392238e8cb337a252

SHA256
cdee7b19d72c6c610238ada444acf1adf40d7b10a2aed243b833540a757e2734

SHA512
8a2b81b1e18ed1100e207ac7d610dd64cfa927cc824328a67314dc2567debda3ba2f06348e46afbb68421ca5b56083de9c3f986e39d1dc99276721ae65c822b2

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