44135731c1706d4a349cd14c1fcd1bd7949079d463e69fed2d5c75929cb11608

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
28/04/2024, 15:23

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General

Target

2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe
Size

31KB
MD5

0adea8ac326f571649bd9e246e47e177
SHA1

80c8f2f722766e1972c1c9ef759cd23d222d8685
SHA256

44135731c1706d4a349cd14c1fcd1bd7949079d463e69fed2d5c75929cb11608
SHA512

9f03ae39a776a587a5edd79fbc343c8709b1bf1098dbef1a121f3052b019be1a39960ac6b704dc4f426a99fb22380f2eff7e2f3b331f073954fc68ea6212c139
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGSp:bG74zYcgT/Ekd0ryfjP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2740-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000155e2-11.dat	CryptoLocker_rule2
behavioral1/memory/2740-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-25-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2884	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2740	2024-04-28_0adea8ac326f571649bd9e246e47e177_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 2740 wrote to memory of 2884	2740	2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_0adea8ac326f571649bd9e246e47e177_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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

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Downloads

\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
31KB

MD5
bb09420a950eb8729c06f8fac81c7e2f

SHA1
008af559eb12abfadab840745c9df7faf17b860b

SHA256
d9eb5675cad08e07e7b95c7364230ac4a2e44b32e5dbc1914dbf438f304d7dad

SHA512
dc726e865925e5cb6c3ee6c74ba0a5d51e70614345d8929741153bd2ffba9d865f7a37f947c5298fffb33cb15337725950518b16b894194bef3c2ae44095df34

Download Submit
memory/2740-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2740-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2740-9-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2740-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/2740-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2884-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2884-17-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2884-25-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download