d98285e89f97340565b1f0d99ecffdc5b7dff41c3e3dd117caf10f38ad5c2e0b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 08:43

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General

Target

2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe
Size

44KB
MD5

6cc89c858529c5ab937d7dded32f76c7
SHA1

e8fad2002b8ec19a4e3069861c0973366ad54011
SHA256

d98285e89f97340565b1f0d99ecffdc5b7dff41c3e3dd117caf10f38ad5c2e0b
SHA512

d1d748395c26ae369946f30daa5b1789abd934e868c3a8142a0c8f673a8a11bb45620c038d7bb0d5e4544a258072da0d943d072cb8a7a5f8708768041f37e687
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUpamWj:bm74zYcgT/Ekn0ryfjRmA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2892-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014698-14.dat	CryptoLocker_rule2
behavioral1/memory/3032-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2892-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3032-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3032	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2892	2024-06-02_6cc89c858529c5ab937d7dded32f76c7_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 2892 wrote to memory of 3032	2892	2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe	28
PID 2892 wrote to memory of 3032	2892	2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe	28
PID 2892 wrote to memory of 3032	2892	2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe	28
PID 2892 wrote to memory of 3032	2892	2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_6cc89c858529c5ab937d7dded32f76c7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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
45KB

MD5
e83fe67108d7ddb2cbd43712314e7605

SHA1
18048835cb164ed79833822470e4fcf1ebf68518

SHA256
ae1dfc0876c6c435aae95af2896c3fe0a6d4c2267e3c94d1f0443e4fb68511fd

SHA512
92519af771126c61a7d57617a99095e188d5601c9b6cbfc77663e547c5113bcf36c733ebb88fd16f22453567e794560e06d7ec4ed4d87759f2accb758977c880

Download Submit
memory/2892-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2892-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2892-9-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2892-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2892-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3032-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3032-25-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3032-18-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/3032-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download