399622fe2b31d0b95ea6fec6f36f1d235bf5573278706baa70f90697fe3af092

General

Target

8e4740c64df41d5aa5df035682a3ac50N.exe
Size

24KB
MD5

8e4740c64df41d5aa5df035682a3ac50
SHA1

cf139520a476da5387dfc0cab28b0ac7705f09e1
SHA256

399622fe2b31d0b95ea6fec6f36f1d235bf5573278706baa70f90697fe3af092
SHA512

5468b6749177566f8ac898d2c91db0fb860fa0ef09feea55164f957ca4819a6deef3393706b0d09324813522e3f7eb0af283298e6a80c42ed89304afc1fc9ae8
SSDEEP

384:F3EqGY2HXgrS40Lol5ZLzH4VhvshYpATUgch1A9NB/erxUkwRbqtq:F3EqG5H8PuoljH4vEhkgs1lx4Nqs

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2884	winupdate.exe

Loads dropped DLL 1 IoCs

pid	Process
1848	8e4740c64df41d5aa5df035682a3ac50N.exe

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

System Information Discovery
T1082

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	8e4740c64df41d5aa5df035682a3ac50N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	winupdate.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	winupdate.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30
PID 1848 wrote to memory of 2884	1848	8e4740c64df41d5aa5df035682a3ac50N.exe	30

C:\Users\Admin\AppData\Local\Temp\8e4740c64df41d5aa5df035682a3ac50N.exe
"C:\Users\Admin\AppData\Local\Temp\8e4740c64df41d5aa5df035682a3ac50N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Users\Admin\AppData\Local\Temp\winupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\winupdate.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\winupdate.exe

Filesize
24KB

MD5
59eb19c53aa8c125b6e8dd11172bdb3f

SHA1
9847a4a4e1256d651e4f695c47096a7292c1fe29

SHA256
1f015f635cae61846fb8d2958f4633df6f40ffa91e5928e97809f30b7341e5bb

SHA512
dafa30f93e18ddfc5a32327ee2a68d297bc72ec64173058e5a92cdb51192e642bc4c02f697dc29d0fb13569e1195230aa6890468bb74bc944f3bd61c34a65c42

Download Submit
memory/1848-0-0x0000000000500000-0x0000000000511000-memory.dmp

Filesize
68KB

Download
memory/1848-2-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/1848-9-0x0000000000500000-0x0000000000511000-memory.dmp

Filesize
68KB

Download
memory/2884-10-0x0000000000500000-0x0000000000511000-memory.dmp

Filesize
68KB

Download
memory/2884-11-0x0000000000500000-0x0000000000511000-memory.dmp

Filesize
68KB

Download

Analysis

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