2969bd7ec0f29ab8dd51871cf40ccb3febea9d64339e33a09d3cff770e37a756

Analysis

max time kernel
142s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 19:45

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General

Target

2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe
Size

48KB
MD5

9c85fe15cb0e5392fe8384da2def468d
SHA1

94e0468855798e5258294e9d18f3a37f807dc265
SHA256

2969bd7ec0f29ab8dd51871cf40ccb3febea9d64339e33a09d3cff770e37a756
SHA512

b5e27c62726038e4ec6f28c5dbc137286e909563e4bb313019ca28932ae0465262d02eafbffcdab2718bf130d2d189cd98678d4990affc1a7cbf491954c2315a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatA:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3020	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_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
1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe
3020	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 3020	1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe	28
PID 1960 wrote to memory of 3020	1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe	28
PID 1960 wrote to memory of 3020	1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe	28
PID 1960 wrote to memory of 3020	1960	2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_9c85fe15cb0e5392fe8384da2def468d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1960
- 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:3020

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
48KB

MD5
dce66f78bf4003210d9ae0edc369aea7

SHA1
bf335d8f49b4c4a3f35a2f89a1df1e07d087040c

SHA256
219c16cf32c1f92a4a85190b2c48eac20156c453d430dba8992bd0dd8894ac7a

SHA512
75cd2f251137a0568340c984ac096d8fed5bc93486429994a8ac1b6d27b5dcae5aa10f5ebcc73d9aa8b3adc56b2ceeed6239dbed76858deec1ecf45c343f31a5

Download Submit
memory/1960-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1960-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1960-6-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/3020-18-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download