2a9dbf4ade1d5489ced900a00864e0f8413fa7c3dcb693af17b3360fd5193cb1

Analysis

max time kernel
148s
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
26-05-2024 02:32

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General

Target

2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe
Size

53KB
MD5

6e16e4939eaf664afa43e691b7624991
SHA1

44f39d929b58c6ec0f9ca8f8fcc54f249a9ac0cf
SHA256

2a9dbf4ade1d5489ced900a00864e0f8413fa7c3dcb693af17b3360fd5193cb1
SHA512

2df5e4193a754a0f249c36b576e8ff3eef52aa085914cc932d4886f9e0b569f7412ed7cbad46430839bb9ad9671b695590e8809616124ea223c8d3c41a127fa8
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklPsC:V6a+pOtEvwDpje

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002343c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002343c-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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	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 2880 wrote to memory of 4832	2880	2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe	85
PID 2880 wrote to memory of 4832	2880	2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe	85
PID 2880 wrote to memory of 4832	2880	2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_6e16e4939eaf664afa43e691b7624991_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4832

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
53KB

MD5
2cdedc3148f71ab6687417cbd2e89b94

SHA1
afa389cc45d6a14dbd14b9a8a90c6ed896836086

SHA256
d7699323f577d690e6dd36f154902ea15f9b3f3d832a59bc8774f21cb7ff3fd1

SHA512
0a0934640c3e2f4e26b5a7d0804cadc8f550e1b5ad2c0fe749ccd8e08439212679bfcc280b9bd911ad7263f8afd96c5b0aaef567c3f9255b3a2bd9238037a88a

Download Submit
memory/2880-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2880-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2880-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4832-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4832-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download