3ea07a13c80fdd5f2821836c37e080e4c45efeafe6c366bc1ac80531f561ba36

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 20:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe
Size

101KB
MD5

f1f158c013616d66e80b28185aacc570
SHA1

8a0ac8296af8ecc57a9adb0462b04861d06e6f0c
SHA256

3ea07a13c80fdd5f2821836c37e080e4c45efeafe6c366bc1ac80531f561ba36
SHA512

d43fb34fef8868d46b1db765c37b059c7c78432bf20933d792977e57e6631813f5841900945a275b242a31a68cef6995e0ab875b19d0c7b2951a6236bd0ab426
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k28Jl:xj+VGMOtEvwDpjubwQEIiVmkxv/wb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2860-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000700000001ebc7-13.dat	CryptoLocker_rule2
behavioral2/memory/2860-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4440-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/2860-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000700000001ebc7-13.dat	CryptoLocker_set1
behavioral2/memory/2860-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4440-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/2860-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000700000001ebc7-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2860-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4440-54-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4440	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 4440	2860	2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe	88
PID 2860 wrote to memory of 4440	2860	2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe	88
PID 2860 wrote to memory of 4440	2860	2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_f1f158c013616d66e80b28185aacc570_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
101KB

MD5
84227dbde0ac6c42a626f4bd2df86e56

SHA1
10b1807375b807d3c4754ab7ce7bf5b0e8a0e6e3

SHA256
6352bd2b9b06fba12a7b07de1e9c5002bf5b818d7d59390e1f165896d751ac4b

SHA512
aa796384bd3b8ff499a70c27a3ccee035f70ea79c08a63d1528e63ad9b32c691affbb65db33b422d62ff6fd78180251d884ef934c2d87f1fb4181daadd08f2bb

Download Submit
memory/2860-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2860-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/2860-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/2860-3-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/2860-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4440-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4440-20-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4440-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download