caae159ff0a7189f07fb8dd6eee4df34dd13b128ca9a90f2fd7f101de83c3012

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2024 14:37

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General

Target

2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe
Size

62KB
MD5

63212bd8c38c479107a12d1505acd5b7
SHA1

88f64c6c14eb029c23253ef2060ef5b7595f9b46
SHA256

caae159ff0a7189f07fb8dd6eee4df34dd13b128ca9a90f2fd7f101de83c3012
SHA512

63769a1b9323d062956d49e6c0868b3085d09864b3fb7714be7d243af3b867634341315589bc3805b24ee6b7c76381de7b977e44eafe2bf2dc6ec853640e5799
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293VD9:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321b-12.dat	CryptoLocker_rule2
behavioral2/files/0x000700000002321b-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321b-12.dat	CryptoLocker_set1
behavioral2/files/0x000700000002321b-14.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-1-5-21-2200714112-3788720386-2559682836-1000\Control Panel\International\Geo\Nation	2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2200714112-3788720386-2559682836-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
180	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 3476 wrote to memory of 180	3476	2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe	88
PID 3476 wrote to memory of 180	3476	2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe	88
PID 3476 wrote to memory of 180	3476	2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_63212bd8c38c479107a12d1505acd5b7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3476
- 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:180

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
62KB

MD5
6c2b845da245156b138f0c88851ea265

SHA1
9b34cda6d19966addf7781282f3a3b7d774341f5

SHA256
ac34584cfb8219172af4324d90aa0b8aafdabffa09782301ec1f2568a964cc15

SHA512
76d36e11176b25b00b18b073c2a6a024498eca8f0fa33a2c906a808b75fd4964d5dd15ad8f0e06b1d6fd53ba05f6eca20b677bb99cddb6a6d4057bcf8c24a8d9

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

Filesize
21KB

MD5
d2af9025d5e890bb285c7b3135a3fd9c

SHA1
34e20bf5f8630e1c529f23fcb57040f50822bfc9

SHA256
6f642a239b039db5bc61e86a135ae6070ef5580fc6e3dabc13cc94201a638cbf

SHA512
c886c94bcbfba70529a639af2612665c592d1e6759854cf9fd4acd551fc9871ade62aca0920056fcf05602daa1f7cf1af94d3851a1093e0b2c56f5aaa01ab7d4

Download Submit
memory/180-19-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3476-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3476-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3476-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download