350f6a764a175f8b14788f5cf9d36efb9a26d0060fc4278dbfd2d4ffd6509435

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 12:30

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General

Target

2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe
Size

43KB
MD5

872d0f8f83fc1d1dc2b3a038596beb3a
SHA1

aa53fcc9482e6295d907ec16f852d06af65aa911
SHA256

350f6a764a175f8b14788f5cf9d36efb9a26d0060fc4278dbfd2d4ffd6509435
SHA512

a166ef64d2c26d7d019eb69c111d52188f624bfa400f7d01a089e0980ee31ede2e1c95e84216acd6ee67c35925d512e5da2ab3abbeed77ab6e9cc30ea673a1b3
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5s:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1308-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1308-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_rule2
behavioral1/memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1308-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1308-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_set1
behavioral1/memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2352	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1308	2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 2352	1308	2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe	28
PID 1308 wrote to memory of 2352	1308	2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe	28
PID 1308 wrote to memory of 2352	1308	2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe	28
PID 1308 wrote to memory of 2352	1308	2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_872d0f8f83fc1d1dc2b3a038596beb3a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
43KB

MD5
c06bb0632f0f810bae304d5b0d21b3e1

SHA1
0980a3071f28d78b1e7cbd1f30c7555ca0e02870

SHA256
63adb0a00779f351b6898b8a45d7c7727ba7dc6320bdb2cfec913e9380ea4935

SHA512
1f227926e4bb044775f4d6ff9696235903986475fc36f188d74e7b1efc10d523f1f3439635a2b3ef65ff85825977d8df48c22a44a9bb61222b76115c47b93521

Download Submit
memory/1308-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1308-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1308-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1308-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1308-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2352-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2352-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2352-20-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download