4743f1bdd466701c558720e5c0a33f4087cfdf867f8e9c3cc7757b713872c9e2

Analysis

max time kernel
150s
max time network
154s
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, 03:54

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe
Size

94KB
MD5

b568f4ea57f6c6d6c60c384066df0f2f
SHA1

d62f9a7e82ddd5670dd43b4e81fb4e4cde630d4b
SHA256

4743f1bdd466701c558720e5c0a33f4087cfdf867f8e9c3cc7757b713872c9e2
SHA512

abc1861f73c432d824a2b5508358cb606eb6881bbe104aaae9045477d1b7b87c08cb2ee598455fc87add5ae357eacd59110b4ebd5000f0ac8b89089d6f11c052
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJ32E:xj+VGMOtEvwDpjubwQEIiVmkqE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2680-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000022745-13.dat	CryptoLocker_rule2
behavioral2/memory/2680-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1116-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1116-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2680-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000022745-13.dat	CryptoLocker_set1
behavioral2/memory/2680-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1116-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1116-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/2680-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0008000000022745-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2680-18-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1116-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1116-27-0x0000000000500000-0x0000000000510000-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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1116	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 2680 wrote to memory of 1116	2680	2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe	91
PID 2680 wrote to memory of 1116	2680	2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe	91
PID 2680 wrote to memory of 1116	2680	2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_b568f4ea57f6c6d6c60c384066df0f2f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1116

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
94KB

MD5
983fe09ae245e4768cdcb94650f337ff

SHA1
aa66a9505565f7ef5cce5e2cc5c20013743dc2a3

SHA256
8b9ad0cc803f99c9aae663f37dc1bc0cf7daa25514914a406608a51d073373a4

SHA512
f363f25fc477b27ba4d994612410c3d51e7fbbf2102c6c80249262510fae21729bf1cdfe8df184547337856ff60fe7445e70bf65bc931a18091bc1db835c1271

Download Submit
memory/1116-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1116-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1116-22-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1116-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2680-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2680-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2680-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2680-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2680-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download