db9805603f0450c5df7f42ade66984b85e66db2ab82caa5009d90d34003dc3dd

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 22:25

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General

Target

2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe
Size

69KB
MD5

670f167e7f7945c8b7109b6e027e2e26
SHA1

6642911c3246e3098a3468cdfbac65a33479a578
SHA256

db9805603f0450c5df7f42ade66984b85e66db2ab82caa5009d90d34003dc3dd
SHA512

385af86a6b775edd1ce1018a1278c4f13aec63b038e13db9946935b60fa23926813de94a14f902aa7af6dd2c640b2988749394f9164c037c785871245dd248a7
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUo:DW60sllyWOtEvwDpjwF85y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2152-13-0x0000000001FE0000-0x0000000001FEB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2404-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2404-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2404	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2152	2024-02-01_670f167e7f7945c8b7109b6e027e2e26_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 2152 wrote to memory of 2404	2152	2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe	28
PID 2152 wrote to memory of 2404	2152	2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe	28
PID 2152 wrote to memory of 2404	2152	2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe	28
PID 2152 wrote to memory of 2404	2152	2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_670f167e7f7945c8b7109b6e027e2e26_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2404

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
ec23dcc62f06552ad918b6274fbe260d

SHA1
b2c8b0428717c6c16af45f860c0c2af6dff808f9

SHA256
c43f74803b8f0e20f9a2602817bdd7f9b4c6fe0eb8af86d35b8e8ea22a7a6df8

SHA512
5b2a8e9908bdd826b16178fdfc76892c5baeb9449687d99ab0eb192375fbc18dccca83ac07e451fd3d56962c034601b961740f84bdbdefd10b8b4ca4932cef49

Download Submit
memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2152-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2152-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2152-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2152-13-0x0000000001FE0000-0x0000000001FEB000-memory.dmp

Filesize
44KB

Download
memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2404-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2404-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2404-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download