cd6d74c604a7d77b8a05d63978a9c9767eb7faa7b010375c185aa1c8c50c3a4c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 09:23

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General

Target

2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe
Size

56KB
MD5

01eb3971eaeed3e33fe6ee5dde6155c9
SHA1

db23853c7e5cced592c0d0563559a327a5046507
SHA256

cd6d74c604a7d77b8a05d63978a9c9767eb7faa7b010375c185aa1c8c50c3a4c
SHA512

f62fa0c6ff0bab12571d46f3a00edef44f5a5d6324aa85c1e7ae7617e8992aaa2fc67d53b496a5450fbfe5bde22d2bab41e3b1eb6c40d8919b4229f916711fed
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7Wwfe3E:6j+1NMOtEvwDpjr8oxEq3E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4516-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000400000001e980-13.dat	CryptoLocker_rule2
behavioral2/memory/4516-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2980-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2980-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/4516-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000400000001e980-13.dat	CryptoLocker_set1
behavioral2/memory/4516-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2980-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2980-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/4516-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000400000001e980-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4516-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2980-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2980-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Checks computer location settings 2 TTPs 1 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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2980	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 4516 wrote to memory of 2980	4516	2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe	89
PID 4516 wrote to memory of 2980	4516	2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe	89
PID 4516 wrote to memory of 2980	4516	2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_01eb3971eaeed3e33fe6ee5dde6155c9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2980

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

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Downloads

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

Filesize
56KB

MD5
67c3efeb703474ead7a902f784b502ca

SHA1
bc0958fd5c8be69412631071b6a891d979dd6b78

SHA256
691f506f782c17996a47f373f1bf536c54b3c9fc6f3807ef22a187bb0e9cd743

SHA512
34d84e50688e24d9871cd1e40d3987f5b0d8a6173ff2ccbdcc9af3f01d1ee1c5f40893570250668bcb8036e5a458a1a514875b3b26cf9714d5cb613a749eaf6e

Download Submit
memory/2980-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2980-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2980-26-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/2980-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4516-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4516-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4516-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4516-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4516-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download