ceb54e4353124e6be6982c3694245f8d4d3f574e1cc8fddb598236e74deb4363

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 04:10

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General

Target

2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe
Size

65KB
MD5

d2f3099bd86658116fe16784b16610b9
SHA1

bb711da4cf99491d6f49e2a2079ff40a82b3a7b7
SHA256

ceb54e4353124e6be6982c3694245f8d4d3f574e1cc8fddb598236e74deb4363
SHA512

a0d2303878075803c535f721583fdd64753d665c15a08b10d678c0062d3106e8c20e54d21956bc810b86513450eb460fde630a12785ef3665c06c8fd80388c5b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGw:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000232a6-11.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000232a6-11.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3692	hurok.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 3692	4668	2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe	82
PID 4668 wrote to memory of 3692	4668	2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe	82
PID 4668 wrote to memory of 3692	4668	2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_d2f3099bd86658116fe16784b16610b9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
65KB

MD5
30acb6e88bf41ddb5525fc6e5d876cbd

SHA1
c2b4b92d25b216b4447e0354863460067aca8b56

SHA256
6196a01c3150e05028e0b72945ddbb9ae05d47c04ce0b2670892fa92d45e464f

SHA512
73a3694250c62fbbf325a298baf292921edf8a6677d1c03590ff5e33b58f790187d4daa3af8954100f2f3b31e2866de9c66637272fb8a654d2d1e1d139579a34

Download Submit
memory/3692-25-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4668-0-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/4668-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4668-8-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download