d70a94af65ba9294ef6cb7c8c889a2c2c5bcbede6d75bfc60dee444936bfacf5

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 04:26

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General

Target

2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe
Size

47KB
MD5

4b82f8832d234167f84ed10052cae978
SHA1

d469753fd4ca243781b1b71dddce46f3d17ba5c1
SHA256

d70a94af65ba9294ef6cb7c8c889a2c2c5bcbede6d75bfc60dee444936bfacf5
SHA512

7a93f3c274df4e9e7bb5542a2930ae6394f612290a47909db830468f0212b45a5a3bc4c7f3f1eed14ab935ff968ae43b3bf0dc9926effd85b476a46f95208544
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2Vy:79inqyNR/QtOOtEvwDpjBKccJVODvy3/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1744-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2028-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00080000000122cd-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1744-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2028-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00080000000122cd-14.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2028	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1744	2024-05-23_4b82f8832d234167f84ed10052cae978_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 1744 wrote to memory of 2028	1744	2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe	28
PID 1744 wrote to memory of 2028	1744	2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe	28
PID 1744 wrote to memory of 2028	1744	2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe	28
PID 1744 wrote to memory of 2028	1744	2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_4b82f8832d234167f84ed10052cae978_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2028

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

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

Filesize
48KB

MD5
9df06e10e65d2f53e5c7f981017d2246

SHA1
098ebb6d2f1c70e42ddd88bfe6b5654a1cba4769

SHA256
948ccc4d45e3b96355ad8d67475a6a039e0654e9dd11a2482c99cf1b94dda43d

SHA512
a7008d9b2ec2577c14a076f55008a153171b31c590e898b89734c83d173c713ce75aaf74ae053eb31b3c23ff2299deb53c7ee167a1897e56483d0bc028023ce1

Download Submit
memory/1744-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1744-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1744-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1744-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2028-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2028-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2028-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download