33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458

Analysis

max time kernel
123s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 03:21

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General

Target

33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe
Size

3.0MB
MD5

df7a1a3dda3ef1e2dbf4837052ec6a2a
SHA1

b54a7a9cbfebba7577ee212416c86768850511d0
SHA256

33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458
SHA512

19f0800d814c33ccc2f3dd548b0b4b92d81c97f29404d67e9962bd9a16545a63c9413520aa84f1d2aac8f822a6260b4326f05b8585c060aa3c41e778294acde8
SSDEEP

49152:ZcburWWS6FKmeAxAfovAF6RKcBQbx+29uWV9D489N:iburtzFKmeoAAvAF6RK/N91PM+N

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2476	NSUDOLC.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\F:	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
4328	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2476	NSUDOLC.exe
2476	NSUDOLC.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe
Token: SeDebugPrivilege	4328	taskkill.exe
Token: SeDebugPrivilege	2476	NSUDOLC.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe
4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 4852	4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe	96
PID 4708 wrote to memory of 4852	4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe	96
PID 4708 wrote to memory of 4852	4708	33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe	96
PID 4852 wrote to memory of 4328	4852	cmd.exe	98
PID 4852 wrote to memory of 4328	4852	cmd.exe	98
PID 4852 wrote to memory of 4328	4852	cmd.exe	98
PID 4852 wrote to memory of 2476	4852	cmd.exe	101
PID 4852 wrote to memory of 2476	4852	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe
"C:\Users\Admin\AppData\Local\Temp\33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe"
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\temp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4852
- - C:\Windows\SysWOW64\taskkill.exe
    TASKKILL /F /PID 4708
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4328
- - C:\Users\Admin\AppData\Local\Temp\NSUDOLC.exe
    NSUDOLC /U:S /P:E C:\Users\Admin\AppData\Local\Temp\33dbfb9e703ad85d6be243cc09f6d473f5ffba72b135becc907f411d3b803458.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\NSUDOLC.exe

Filesize
99KB

MD5
0ac3e9d59309f599403ac51615bfe41b

SHA1
9041c5562558cb58ac98bd18de3c0ce370a59e1f

SHA256
6d5e116c2af78b5585602d91bca3a436a0350630fc7c08412c0cafe55199547c

SHA512
e5de92202f4d3ecaff8bd65c99cbbc98c2deaafafe1620be7169d0fed467bfa11ce727fa78f686166758ee3df0b040a2643dbd5a46ee74cc679e647ebdad6910

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C:\Users\Admin\AppData\Local\Temp\temp.bat

Filesize
145B

MD5
8f5d90ec932d4f60f4c034264448d407

SHA1
3a264919d018803c8c0b2224af08131571008f81

SHA256
efbff17a1a193cf71898c03e988a73cc797c0d6a3572d616a9f31e98340be498

SHA512
99af6156ebf01ac11ce16cf495e41c490a687c873d24a6adde405ff29ae86dea37f3920515c9a71c11c85d41a8385e4036ec39ec6e0052aa1cc11f9e81b1f5d4

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