1eed0bad17a92c4c08a8a86082b58925979395d38cb348191c674e3d33900c30

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23/05/2024, 22:22

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General

Target

2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
Size

54KB
MD5

0db333c2c2153c6b4b7d2b1659d50cfa
SHA1

af6d7acddc1404fe362f873066118220f431d5fa
SHA256

1eed0bad17a92c4c08a8a86082b58925979395d38cb348191c674e3d33900c30
SHA512

27ff0e2d2ed45d8a4cd5bd2caff2f9013bc7eda66ce0d8d661d6cb63628689b6e17d832f470c1e833d8dfde6a41df532622f768c945ed325fd720ed013d41733
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6E5:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1228	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 1840 wrote to memory of 1228	1840	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	83
PID 1840 wrote to memory of 1228	1840	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	83
PID 1840 wrote to memory of 1228	1840	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1840
- 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:1228

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
54KB

MD5
47e5344e9dd3ec0ca9dce8c56c9593e9

SHA1
17fe2e42cd072642a58df768133f2b08a7823828

SHA256
0159cf9bc6ce3131653ea1ca971effbb1ce113a8d9d5ffdc5e8676c7fd6426a4

SHA512
93f6d8abb65c0dfd8eb25fc578214a3f3765b1b0b624541d06a6aa78947681dd2e1e124dfa6a29ae7647676fbe1b855d5aaa43d9a4579fc7b9a916beb3bd35f7

Download Submit
memory/1228-25-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/1840-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1840-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1840-8-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download