44abb9bc47cc6eaf574acf883a16afe9d07ecef8fcb6c1f0bb9099292d3493a5

Analysis

max time kernel
149s
max time network
168s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 17:58

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General

Target

2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe
Size

385KB
MD5

993ce01700b212fd5dfb6be25976d3be
SHA1

f4f04dc37cac40991ce97e0325c0315d1f000d86
SHA256

44abb9bc47cc6eaf574acf883a16afe9d07ecef8fcb6c1f0bb9099292d3493a5
SHA512

0e757fcaa0a4bad86eb4e7335ec038d093397897138b85aa5d1c031571a7d6b044e32daa632323bf42c9545b96e7a03eac150192f2f78e6b2cc775dad0ab2ded
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2124	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	2024-02-18_993ce01700b212fd5dfb6be25976d3be_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 1700 wrote to memory of 2124	1700	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	28
PID 1700 wrote to memory of 2124	1700	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	28
PID 1700 wrote to memory of 2124	1700	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	28
PID 1700 wrote to memory of 2124	1700	2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2124

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\hasfj.exe

Filesize
385KB

MD5
8f286f1422d72e41f6bc7528aff0611e

SHA1
bfeb86ab045bacbffda1823a53b3444aa95003f5

SHA256
0bb57db8a098cc3180ef28a933d03b28ada3817673113ab74a021ee35ebe2987

SHA512
64b93c36b2200835995f1a64cc4f72d479c4b595c1a452fa29da133b09f02510a94888e016990ef3be43a235619cbe3594c85ed16a3e8d22dd71e37661fbdbf5

Download Submit
memory/1700-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1700-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1700-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2124-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2124-22-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download