5b9bf18a205f802f6bd40f65588b695dc733cbd6d42d164d48d2f895e2e8f396

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
10/05/2024, 18:31

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General

Target

2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe
Size

41KB
MD5

dd2f4041e20ff87da830960a71fdcde2
SHA1

b24b6bdeb30b5ba4e64dd37784931e87c2df03e0
SHA256

5b9bf18a205f802f6bd40f65588b695dc733cbd6d42d164d48d2f895e2e8f396
SHA512

e4f7a881089a81cc53ca6fd239ab363bf55029186ee9846b88e52079f4a7fea106e76972dab0850ad0396749d94e1b02c4169036580fbd3310741cce84e29642
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCL:X6QFElP6n+gJQMOtEvwDpjBsYK/fw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023289-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023289-12.dat	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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3216	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 1012 wrote to memory of 3216	1012	2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe	84
PID 1012 wrote to memory of 3216	1012	2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe	84
PID 1012 wrote to memory of 3216	1012	2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_dd2f4041e20ff87da830960a71fdcde2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3216

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
41KB

MD5
ab4b3a929e9cd6813269bbc85da4da69

SHA1
fd0bfdc147a7c96b0e2d910e2b3f9a4a70f14ffa

SHA256
2808757ffe913b53822e31f58a262f4262c7845b83e3c8fb2c1d2a1c85307724

SHA512
4362b936700e8dda125baebbd810d2a7afda59252f992c5b88ad4d0f6d2bbcef3a4ddce331382cf20634f7dc83f33df998d05a1e81caf0d8169e70b3cc47fd47

Download Submit
memory/1012-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1012-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1012-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3216-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3216-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download