9232e859e5e12d184034082209851fea5d538ec45d0da5dbeb1e57f983566a84

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 06:33

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General

Target

2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe
Size

48KB
MD5

7b9f5df90c8c41f7cc4ee99e55aea08e
SHA1

a003ddb6f597a7c78a9bb96897ebd83dae32d653
SHA256

9232e859e5e12d184034082209851fea5d538ec45d0da5dbeb1e57f983566a84
SHA512

08cf184f6c4badf19597413a17359969a02b338147f0e6ade138068a6f64aaf6e5662d01a41ccb667fad0681c18cf021251fa0d5aa1a021bd1c88d75599ed230
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3SpUz:79mqyNhQMOtEvwDpjBzckqSy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2180-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012263-11.dat	CryptoLocker_rule2
behavioral1/memory/2932-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2180-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012263-11.dat	CryptoLocker_set1
behavioral1/memory/2932-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2932	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_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 2180 wrote to memory of 2932	2180	2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe	29
PID 2180 wrote to memory of 2932	2180	2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe	29
PID 2180 wrote to memory of 2932	2180	2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe	29
PID 2180 wrote to memory of 2932	2180	2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7b9f5df90c8c41f7cc4ee99e55aea08e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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
705bd96522c3db5f92076b3b402557d8

SHA1
f8158d66c23b0a813acaa7cd3f16e9ff7df695e4

SHA256
f027ad36b39c29b260df0ebab5c1e61da5c81099fca8e3bfef916b3ba95a7b3b

SHA512
c2250cd2efee8631f9648f5e17697a4def756aefe5d354a9e56d69db349aa867b81b4797720aa3bd275dbad5ace04feeadfc1aab5631e4c64b948badc030c591

Download Submit
memory/2180-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2180-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2932-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2932-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2932-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download