1ddae030c8af4f3867cbbd47c5f82c7a4a025c9824ac3b237982fbf50c9a2a20

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05/05/2024, 00:25

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General

Target

2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe
Size

62KB
MD5

09d6bf1e80a4c8e1ef2ab0fd1d45c6a2
SHA1

0cd6f074b15186323913e1e33e9dcbe367baabae
SHA256

1ddae030c8af4f3867cbbd47c5f82c7a4a025c9824ac3b237982fbf50c9a2a20
SHA512

da5863ca98108ab79133c9066cb081f9c8528da3a877cecfa64f18d70778473c220d8290ef2dfbfef1e0647020ae8d83b46ba16ac045baa608b65a0170c46291
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt5A/z:V6a+pOtEvwDpjvx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b39-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b39-12.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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
428	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 2620 wrote to memory of 428	2620	2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe	83
PID 2620 wrote to memory of 428	2620	2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe	83
PID 2620 wrote to memory of 428	2620	2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_09d6bf1e80a4c8e1ef2ab0fd1d45c6a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:428

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
62KB

MD5
9a6747eba259d368cac4cb7f1fcc4aa4

SHA1
09e0038b01985991acce60e990644f19a769d4af

SHA256
d6e024add30fc2a432c87de0995c6e22bb4f1699090ccc78f5c359036c260f9b

SHA512
51a46b8a4e433bb92987086119b13ff318543ae18dba6790f731a5aa03930112d13ad69e651f4c6bd9ee8fae490733739657d38857635d2654404afa403cfa0d

Download Submit
memory/428-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/428-23-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/2620-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2620-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2620-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download