ea5300428a1a72559aadb9977cea3894a7180242206eb46a7648a5c4994c4f54

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 19:26

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General

Target

2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe
Size

69KB
MD5

3ec6957c797d78d272bf4211b5892f07
SHA1

1ba0146006f615aac31a814b21063b26c38f1a3d
SHA256

ea5300428a1a72559aadb9977cea3894a7180242206eb46a7648a5c4994c4f54
SHA512

df1acb554b10b185186b531cca5faa199efdfc04590fc5d69e3a1ba368ae9a8e0a1bcda374a2a4f158e58a383380df466ef231e881ad793f05722c8d0180d549
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbU/:DW60sllyWOtEvwDpjwF85s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2536-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014227-11.dat	CryptoLocker_rule2
behavioral1/memory/2536-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2340-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2536-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014227-11.dat	CryptoLocker_set1
behavioral1/memory/2536-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2340-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2340	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	2024-01-25_3ec6957c797d78d272bf4211b5892f07_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 2536 wrote to memory of 2340	2536	2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe	28
PID 2536 wrote to memory of 2340	2536	2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe	28
PID 2536 wrote to memory of 2340	2536	2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe	28
PID 2536 wrote to memory of 2340	2536	2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_3ec6957c797d78d272bf4211b5892f07_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2340

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
69KB

MD5
e299e446393d072180bbab8fc61293ee

SHA1
bbb7a481c54e6677856b49b5b218af871dbc9052

SHA256
de052f5f5434a4a416f6f04cd11e478adcf2c3a0857d759eeca6432a85d29d2d

SHA512
7fde1df405b15c2e4c010c20fe90fd4ecae68e668e43f27c1d16be71ed2fb31321ef80cb3ac6e816fb72c0228450757290dbb56e26c810777f5e3f9648290efc

Download Submit
memory/2340-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2340-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2340-25-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2536-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2536-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2536-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2536-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2536-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download