85eea9832d2a51ca7f61281a314513f02c480b2899e2d5175423f406194c1966

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 04:40

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General

Target

2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe
Size

64KB
MD5

53beed9d784873523149925133309086
SHA1

de92aaa68cf1e8cb9c5ec7b100a46a0a2f647c1e
SHA256

85eea9832d2a51ca7f61281a314513f02c480b2899e2d5175423f406194c1966
SHA512

4657a0df3a0d2ead7137e428cc370438b06fd022c43c1b7ff7e5358329c08a95e6b4410f419d2bc6ef227a202b0fc06352fa191e2581503e67f2b05b6fbd284d
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGo:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7l

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
2080	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2168	2024-04-26_53beed9d784873523149925133309086_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
2168	2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe
2080	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2080	2168	2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe	28
PID 2168 wrote to memory of 2080	2168	2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe	28
PID 2168 wrote to memory of 2080	2168	2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe	28
PID 2168 wrote to memory of 2080	2168	2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_53beed9d784873523149925133309086_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2168
- 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:2080

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
64KB

MD5
f4985172cdd6daea2f280fc4a8f82e53

SHA1
f4815febf0da9b924fb4a6754ad6bbff16715478

SHA256
d3e3bf18e833edd0120fcc526e338845ec633b9f5a1cd0b822b8de26fb7063e3

SHA512
79486a7723e582cd2c6adc6bc9272571792e8118d611c61a6ad786ff74d279f7e418a9f6fc668291597780399327da43876379aebcac1619079b50aeb4cb12ae

Download Submit
memory/2080-17-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2168-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2168-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2168-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download