9e2c4d229090b6289073654ba02ee50da7a330ded0c36c89fed4706a44931693

Analysis

max time kernel
133s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05/05/2024, 03:36

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General

Target

2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
Size

29KB
MD5

8ee3ce10e86a19ce947374b980588ac7
SHA1

9c8ab33767082bfe62ae143b6bb03cd3c9fcf9ea
SHA256

9e2c4d229090b6289073654ba02ee50da7a330ded0c36c89fed4706a44931693
SHA512

f7855d3963ccb193848722acf8f7ffe51787b8455fbe0c1422bbd863f98f3f072421ce64d57baa86ced1aeece41ab5e78ed1a63f1fca308154ad3c6d047f772c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfC/:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b2e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b2e-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1656	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 4312 wrote to memory of 1656	4312	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	83
PID 4312 wrote to memory of 1656	4312	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	83
PID 4312 wrote to memory of 1656	4312	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4312
- 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:1656

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
30KB

MD5
779a61f68a7ceb1043cd4817728f2755

SHA1
4c83ae1e2264422337d62035fb68dbbe94618bfb

SHA256
918a79805f8444fcdd803b09e74df033e6068fa19b4323d22540c01859e0e88e

SHA512
7b75e2fcb2654085c6ad808ccac426f52ef488aab422f10ba295ea2002574d8f4cecb4a0bfe7a8f894b764ff28ad0d92c33a8092f9c67c0756654824b10b1851

Download Submit
memory/1656-25-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4312-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/4312-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4312-8-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download