f0e71b2cf3255b1acba7b8472a0aed2a883c77bcb36f790113a41988dfaeab70

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-01-2024 01:16

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General

Target

2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe
Size

41KB
MD5

e81ba2ea13f21629be95b3802899170c
SHA1

d3b1833b5b6db1cf9d9a0dba7f9d91b3479847fe
SHA256

f0e71b2cf3255b1acba7b8472a0aed2a883c77bcb36f790113a41988dfaeab70
SHA512

2a5e82153d2d7dbd901c1825d1838499e7e02ce4cdbb2eecac8287aed0e2ca2a983bd2a971c16c448265f08315cf24d52d6052c6ca0cac57aefd1355c40c977d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqvh:bxNrC7kYo1Fxf3s05rwxbFch

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1976	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
1572	2024-01-24_e81ba2ea13f21629be95b3802899170c_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 1572 wrote to memory of 1976	1572	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	28
PID 1572 wrote to memory of 1976	1572	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	28
PID 1572 wrote to memory of 1976	1572	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	28
PID 1572 wrote to memory of 1976	1572	2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_e81ba2ea13f21629be95b3802899170c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:1976

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\pissa.exe

Filesize
42KB

MD5
b1455318176c3dcad4c53f558db3a4f4

SHA1
7b7adcf36c6b3be9161a2ef742ea1135cededf1e

SHA256
818803d9487ddb0a7473179be09334be81ea8dceff7fb8b639f925cf208df59f

SHA512
9a82587d5d4f83f5c1a2b48e99c4badbe19b777abba74bc7fb54bcc93dc60f0669fafc96a05a690675a987b458887181074bf7836356c7eb8fb75f0c69ca00bb

Download Submit
memory/1572-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1572-2-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/1572-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1976-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download