fd7e24833aa54709cf601284946717a49df9e5de822fa7bb56ad156ab748437c

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 06:48

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General

Target

2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe
Size

81KB
MD5

bb6b5e7eabff83e9db9503d8094e96b4
SHA1

159d572023fb0aa50369344873bb754d2477a56c
SHA256

fd7e24833aa54709cf601284946717a49df9e5de822fa7bb56ad156ab748437c
SHA512

ebd1cc90f4411159f7c90c9bb75c061a2f24607f1a2d929a677aaedd855da1ac9b7060e1cee1e945378ca2f36e08612b630ce0b620e401171de047fe1e1b6a4b
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMAeR2:TCjsIOtEvwDpj5HE/OUHnSM2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/944-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000122a8-11.dat	CryptoLocker_rule2
behavioral1/memory/944-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1836-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1836-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/944-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000122a8-11.dat	CryptoLocker_set1
behavioral1/memory/944-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1836-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1836-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1836	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
944	2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_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 944 wrote to memory of 1836	944	2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe	28
PID 944 wrote to memory of 1836	944	2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe	28
PID 944 wrote to memory of 1836	944	2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe	28
PID 944 wrote to memory of 1836	944	2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_bb6b5e7eabff83e9db9503d8094e96b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1836

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\misid.exe

Filesize
82KB

MD5
0039b02eed48165d8893c43aaab1bef2

SHA1
4728a08a42b4c1c5c6b744ffc55382d7ad45d640

SHA256
29c03498478f72d70c6687275552282f6bb05cc05b726690ba75e5b36baa3910

SHA512
47819be195a41ef9bc030b30b19521946a74ea2c34541844a2d766d31cf5a7692aa9bd984620463f1ecfabe8f53fa9609fee08090e31443ddd1c4064c44dd313

Download Submit
memory/944-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/944-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/944-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/944-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/944-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1836-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1836-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1836-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download