d7f477da6f9a72a112cf7eb4685dfa27f386a2776d2088f72d2d69ef7737969f

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 07:24

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General

Target

2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe
Size

47KB
MD5

0262393f80dfaab803e1b0f66f618cf8
SHA1

18da81c24d5e98632738697ce65ea359c1cfa1cc
SHA256

d7f477da6f9a72a112cf7eb4685dfa27f386a2776d2088f72d2d69ef7737969f
SHA512

d3e1d6a0acf00831fca216e5c12014f57d6b801e3a356c18933844396a9b873fd76ded945213c8307fb83323e93bd055a2989ba527c4a453cc1a7c387074be6f
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPc1:P6QFElP6k+MRQMOtEvwDpjBQpVXV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00050000000232b2-13.dat	CryptoLocker_rule2
behavioral2/memory/2964-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1064-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1064-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00050000000232b2-13.dat	CryptoLocker_set1
behavioral2/memory/2964-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1064-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1064-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1064	asih.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 2964 wrote to memory of 1064	2964	2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe	84
PID 2964 wrote to memory of 1064	2964	2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe	84
PID 2964 wrote to memory of 1064	2964	2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_0262393f80dfaab803e1b0f66f618cf8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1064

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\asih.exe

Filesize
47KB

MD5
a6fed4e54325c7de0c7ca4bb735ff515

SHA1
88b1a5c630f6692f375a377d972db6e16c7c8621

SHA256
71c3e886122d719a2d226f20fbee4228c0cd9848073ded29dc7838389410d578

SHA512
79976bc64a140e350625aed871c0d1744801c0b18f5a08f3590f298092b45769facedaf606016c431d9e61f10d8513c223b7fbd10fc179b575d033b60998d2d8

Download Submit
memory/1064-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1064-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/1064-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1064-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2964-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2964-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2964-9-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2964-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download