61de527164ef26094d53ea1f010f6e06502bcbef24b6197cfc2fe3f382d95d09

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 04:39

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General

Target

2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe
Size

32KB
MD5

9c2ac610593996b836b84f18f8325dca
SHA1

1745e60433d448a18cd33cf51adbc0c2995e659e
SHA256

61de527164ef26094d53ea1f010f6e06502bcbef24b6197cfc2fe3f382d95d09
SHA512

911afe23064f3121dee82159e4f01d9823a966c7051ca435f8204f9c81b7c80a068c2a1b9609fe679acaff3b272544d74dcf6051961700915ac9d34b2f916402
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGSWLxp:bG74zYcgT/Ekd0ryfjcFp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016332-24.dat	CryptoLocker_rule2
behavioral1/memory/2760-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2224-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2224-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2760-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2760	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-05-07_9c2ac610593996b836b84f18f8325dca_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 2224 wrote to memory of 2760	2224	2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_9c2ac610593996b836b84f18f8325dca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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\hasfj.exe

Filesize
32KB

MD5
7dcb6d00497686788068bce4fe396b13

SHA1
bcefda1c0129f173013d303308b09ac08ebe5d6b

SHA256
e8d34fde3d11dd633e9ac754a54e64eee4f3da31dc89a6efb9a899e551fe885d

SHA512
f98ea5b148fcdadf9d0446580c67a4867c5d9857801e9cf439c0a17148d4e1daf96fe94e3e46380acf26193348de008715f937802442946fce0cad30319e16d2

Download Submit
memory/2224-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2224-9-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2760-25-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2760-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2760-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2760-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download