c612d6b085d325a1686bf006e82628108a63af6e312ea8c4b62b7acddcca960f

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-02-2024 08:45

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General

Target

2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe
Size

40KB
MD5

839adfb13cbd5602fedfd4cbbf0b2cb5
SHA1

5ff4fe9fe152fcb6a84993768805db35751ce4b6
SHA256

c612d6b085d325a1686bf006e82628108a63af6e312ea8c4b62b7acddcca960f
SHA512

57068b4df4379d5b66ca2ae798d648e5bee9d6929c6eaba4a31813e07b781e635d2a0d7c3ebd3ccee966ef97b4265206cba09f891a1b061a97b69306e8f42c01
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PT:bIDOw9a0Dwo3P1ojvUSDhL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2280	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2096	2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_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 2096 wrote to memory of 2280	2096	2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe	28
PID 2096 wrote to memory of 2280	2096	2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe	28
PID 2096 wrote to memory of 2280	2096	2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe	28
PID 2096 wrote to memory of 2280	2096	2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_839adfb13cbd5602fedfd4cbbf0b2cb5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2280

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\lossy.exe

Filesize
40KB

MD5
f4a760dbf12c42df09dbafb8ef5b39eb

SHA1
c16e763a8d16ddca0670d667eb7e322fa053af06

SHA256
afaad8c2b1c442131c6fd643bddd4bb042de04668ef9ca613d1ae3afef5d6a6f

SHA512
5159066669de6657713ef66be5b9e68bb0df0f7c26854e65ee2e609966e55db4ef6b3d3e97ef32202f073b1a3a23551f8ae88f5e8a409373bf8bb43878ca1f00

Download Submit
memory/2096-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2096-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2096-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2280-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2280-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download