5bc480a6192a89bf36e78266f31309522b05e666cd1f9b913d45ed2ebfeb7e8f

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
06-06-2024 19:17

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General

Target

2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe
Size

84KB
MD5

a5bf8aeb1e3f1251e16e8c15cb878315
SHA1

c1b0e14827393b90279774f3146ca19eefd4b6e7
SHA256

5bc480a6192a89bf36e78266f31309522b05e666cd1f9b913d45ed2ebfeb7e8f
SHA512

60752fe519e7b41779e60b091b2704dadaac82dc31490ca6883085917c095b9ea2a0374a6241839bcc59de1b057ab9f1ddc424de6c270829ebeaba0a96097df7
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCD:TCjsIOtEvwDpj5HE/OUHnSMq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1756-9-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014323-14.dat	CryptoLocker_rule2
behavioral1/memory/3048-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1756-9-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014323-14.dat	CryptoLocker_set1
behavioral1/memory/3048-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1756	2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_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 1756 wrote to memory of 3048	1756	2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_a5bf8aeb1e3f1251e16e8c15cb878315_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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\misid.exe

Filesize
84KB

MD5
dd72442de66309f1ae2c04ef374bb5cf

SHA1
c5092175a60a01243192dae93a6cc2a2bb445a1e

SHA256
9232f843ed43530929fa8621f9f655bad52d22458a8c9b45e044dff4d334af81

SHA512
a55bd2af50622a988d530791ce9bc3ba24dadaee8224813a7d2f6740467da43cbcabdb056e7927a27cb68f618fb76929026ceb2dacfeb80d3e8bb851db5fb966

Download Submit
memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1756-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1756-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1756-9-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-17-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3048-24-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download