3c6c97f0d60a3eb21ce0a57122e97c179f7b46afe15c3902021b3c8ba90354d5

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 06:27

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General

Target

2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe
Size

62KB
MD5

f44eb0b7531a7de414240ee34b14e372
SHA1

8617a257dd79bbd91f48c2151083215fc0775153
SHA256

3c6c97f0d60a3eb21ce0a57122e97c179f7b46afe15c3902021b3c8ba90354d5
SHA512

535856464d86e9b89a67b7656d0938879209f6356a1942c21ef998efa3f54dddb685cc59eb0f1a6b47dfc82b5d6e73313eb8bb3a5c9c05c24dd5757b7796e044
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293u:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2492	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_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
1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe
2492	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 2492	1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe	28
PID 1196 wrote to memory of 2492	1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe	28
PID 1196 wrote to memory of 2492	1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe	28
PID 1196 wrote to memory of 2492	1196	2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_f44eb0b7531a7de414240ee34b14e372_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1196
- 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:2492

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
62KB

MD5
6b75e3fb51fd8ed65a257dceb5f67d29

SHA1
311f230e85996269a760338e5e826981fc788794

SHA256
e535cfc74d6a3ba32e32de7816f6c30992cad0dece8b16624a1e07f01cbca315

SHA512
783c938059fffbceb719023a0de767b241a52808bd4650afd8196a6cf7bb139b9ca25f12693958b0a210d13367ec093b2061d216da8afb7ae6360787897ae850

Download Submit
memory/1196-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1196-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1196-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download