03f3cdce05a4cffd51cd1e2693e0bc73050db55f83670d8af52293c9bbe651a0

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 02:44

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General

Target

2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe
Size

54KB
MD5

af29ba829cfe507cb20d3fe4a6495908
SHA1

d4c109f8cd092b15d1079f3752c78464fb9e412e
SHA256

03f3cdce05a4cffd51cd1e2693e0bc73050db55f83670d8af52293c9bbe651a0
SHA512

aeb859538207d1dcbbe8045d48c9bb0d6ec10a7d6b27b8fe58769f3a6f35550e8848bc912d78e2c9ffc210763c1bdb67f0a2c965e7fedb7853cd9d818abca6c6
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Ex:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1696	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe
1696	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1696	1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe	28
PID 1720 wrote to memory of 1696	1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe	28
PID 1720 wrote to memory of 1696	1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe	28
PID 1720 wrote to memory of 1696	1720	2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_af29ba829cfe507cb20d3fe4a6495908_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1696

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\hurok.exe

Filesize
54KB

MD5
bb171a4e86116185128c5b5001828fe8

SHA1
26fc2a477fb7498ba0d5e6a6d6d1b1bffb231381

SHA256
3d054b1e429333bfa864e81d81ab1561661d50650dc331fc4b9b6cc887b08ab9

SHA512
8cac73b7c1d68af2bdf7ca59a7e4af30af0f3f1e6f580c3911b7c287544982e6a0262c24ad250a27fecfd331a59bceabc40182e4182107e8235d481aa1a7c19b

Download Submit
memory/1720-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1720-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download