6aa492f1199c23a6b568214960670c86b4e57c6c4b4c8861dd764c0c63dd6ed7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 10:03

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General

Target

2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe
Size

53KB
MD5

2285d0a0920fca0146581728177561f0
SHA1

832e0d9797df41657dc1a141376f7e0dbeae46e8
SHA256

6aa492f1199c23a6b568214960670c86b4e57c6c4b4c8861dd764c0c63dd6ed7
SHA512

f899432fc6f72b15810056777f4d43e95af1f6136f4c068af5841df0fc6e3afaa06a8169edacee22e0452fb100c46d2837cdf2e8c64fefea322fa0b1e6f6ee11
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Es:aq7tdgI2MyzNORQtOflIwoHNV2XBFV79

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023370-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023370-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	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 4916 wrote to memory of 5084	4916	2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe	81
PID 4916 wrote to memory of 5084	4916	2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe	81
PID 4916 wrote to memory of 5084	4916	2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_2285d0a0920fca0146581728177561f0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4916
- 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:5084

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
53KB

MD5
7a31bb0a6377db9df80272f56ba79fff

SHA1
106c6b28cc7ca91898eeec1613e3ece55d6ed1fc

SHA256
7ddfd58d515bddfe28a6f77f5f6ad9d85dd0c61dd6a099448342b958d5c36afa

SHA512
6e03c38372fe7b87dd80796da1e886f444c72689ac21a568d4ee75a00a8ba055ecd275976f71c90bd27e06e57e3e3022d609ef740b2c47dc24659eb7c64e942c

Download Submit
memory/4916-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4916-4-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4916-8-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/5084-25-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download