b5c2d9135d474469ac802f1cc4bb022a8695babe15ff87a7fc2556b03ec40f33

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 01:21

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General

Target

2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe
Size

57KB
MD5

c627e52e04b8161491d62bcbd320a39e
SHA1

dd2088521ceb0b915e1230f53bfcaa3601316903
SHA256

b5c2d9135d474469ac802f1cc4bb022a8695babe15ff87a7fc2556b03ec40f33
SHA512

e123c5240a7041345a69d6d7209e83a718b36b94880b14f8e49ca22997a1fb3b9e02e70dfa83178a823c2b1ac89632af55094966c312c6a9cfbfa9a7cb9b3d91
SSDEEP

768:HQz7yVEhs9+iy6DX4WTnbcuyD7U4tOOtEvwDpj/L9+4hdCY8EQMjpi/zcB:Hj+i2WTnouy84MOtEvwDpjZHyju

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2928	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2352-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012256-11.dat	upx
behavioral1/memory/2352-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2928-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2928	2352	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe	29
PID 2352 wrote to memory of 2928	2352	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe	29
PID 2352 wrote to memory of 2928	2352	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe	29
PID 2352 wrote to memory of 2928	2352	2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_c627e52e04b8161491d62bcbd320a39e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
57KB

MD5
d173223a8000790d9376bb0a6f6d1262

SHA1
936b61fe37205aa2df9fa573dae187833ffa1607

SHA256
b99b2f4d029140008abfb8a84759013b71ed87763968a24bc4c6164491157898

SHA512
fb976c37f637c2c890d3c55b029a06ab5c76bdf335d7120e81cd9922ccdd02d9627ce6542fea178591e70339b3c2c5f4c4dba6a1e5481a5bc608141cfd16deb8

Download Submit
memory/2352-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2352-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2352-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2352-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2352-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2928-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2928-18-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2928-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download