8436d2350dc05df18a3003e7f65d5eee3d11d841c108e40397789bbef67da5b2

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 00:32

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General

Target

2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe
Size

48KB
MD5

92d588a3a3bb0e2cd5ba5ee83e6a03ef
SHA1

3f571c5356e0edcbb5fb490889a15425160ee4db
SHA256

8436d2350dc05df18a3003e7f65d5eee3d11d841c108e40397789bbef67da5b2
SHA512

bfe5797bfec24d1bb936c94c8dbba1cb7c27e3531f603ca1c750319541c75b9c254bc39c61e43f8759f0e0ad2c452eee61682d40fd0494355d25acfca8ca4fd0
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGS:79mqyNhQMOtEvwDpjBxe8GGS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2032-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012247-11.dat	CryptoLocker_rule2
behavioral1/memory/2032-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2752-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2032-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e000000012247-11.dat	CryptoLocker_set1
behavioral1/memory/2032-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2752-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2752	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2032	2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_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 2032 wrote to memory of 2752	2032	2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe	28
PID 2032 wrote to memory of 2752	2032	2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe	28
PID 2032 wrote to memory of 2752	2032	2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe	28
PID 2032 wrote to memory of 2752	2032	2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_92d588a3a3bb0e2cd5ba5ee83e6a03ef_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2752

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
48KB

MD5
d659b278f3fa5b95277ec96b6729256a

SHA1
80976d958ba381ad24d9e10a20e3850c82743626

SHA256
dd03e6bbd48be095ed5afd10703c78deb1d397d69f5c5b9ccf08a8b1b9c43fe8

SHA512
6cb9e6f77d13fb64c969328f8982abcdf842f00cf480404f758f5d3f58f68429fef5550b2a0806d86a3dc2feecb7ac8aaa741dd07e98750d0e15268fa1c66d8e

Download Submit
memory/2032-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2032-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2032-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2032-5-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2032-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2752-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2752-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download