d146d33d5fccd05b4254a572ce854248ecf0430b76244bb0e91635ec049c8fbe

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
24/06/2024, 23:32

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General

Target

2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe
Size

45KB
MD5

dfaa3f658938b10dc461f368d0bcaf8a
SHA1

73279f3e07a98c57a14429174bcf25196c25fbcf
SHA256

d146d33d5fccd05b4254a572ce854248ecf0430b76244bb0e91635ec049c8fbe
SHA512

cb4b82f4a57a09c3305b3e7f79a443bb9f315394ff45554701bed7cd7f44d52769544bc34a99aa3332357640bb74f50352aa790f7fe35af054b0e6802ec25592
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPX4:P6QFElP6k+MRQMOtEvwDpjBQpVXE4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/3644-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00060000000232a4-13.dat	CryptoLocker_rule2
behavioral2/memory/112-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3644-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/112-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/3644-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00060000000232a4-13.dat	CryptoLocker_set1
behavioral2/memory/112-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3644-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/112-27-0x0000000000500000-0x000000000050B000-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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
112	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 3644 wrote to memory of 112	3644	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	81
PID 3644 wrote to memory of 112	3644	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	81
PID 3644 wrote to memory of 112	3644	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:112

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
45KB

MD5
ee961f004b71e4ed917f3c22275eea83

SHA1
30acc9cca298040e89afb0328064ed90ea7eb0ab

SHA256
9d216118d5f6e23992b7feac22871441b7f60b8a8d0f6ae5a7ea2f89c8146dc7

SHA512
877425fb6b69c9efac49ea5bee08755cfef3765c3ca1599a7950b3df34e15e84ed4379211518720263b4f48c3fed602157f8f23315ec4d344f32a8bcdcf5c4bf

Download Submit
memory/112-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/112-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/112-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/112-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3644-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3644-1-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3644-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3644-9-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3644-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download