568ec1f7c65417a728dbef3e1c2d7b32186ab5a69acd63bddc1110cc649bef57

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 09:05

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General

Target

2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe
Size

92KB
MD5

fe81f680015e02c3a53579628720a564
SHA1

29b37dfbc01e4f4668a2b35a50975adc7f9ba190
SHA256

568ec1f7c65417a728dbef3e1c2d7b32186ab5a69acd63bddc1110cc649bef57
SHA512

cd7fd2cc0973923868b25beb4754867a829444af3b54ec7324fbf97a0d46c486c7e079eb492b58f3caa81382d154475409e75bf28b0e27273457fcaefb3e3055
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCg:26a+2OtEvwDpjtzr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023214-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023214-12.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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	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 1264 wrote to memory of 2784	1264	2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe	84
PID 1264 wrote to memory of 2784	1264	2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe	84
PID 1264 wrote to memory of 2784	1264	2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_fe81f680015e02c3a53579628720a564_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2784

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
92KB

MD5
4fc21ff7664659768018c9664c9e0fba

SHA1
a2e87ba69ebf5ccbb9d8b3854b29bbf4bdbeac41

SHA256
d827bce5b3046776fc36d8d41a1e15fefb47781730697e71fc18b30de7cf4fb1

SHA512
e09846aeb378656bc81ec2ae2db1b6c075ce82ddc1c1c2d031b7cab6a5e9b4d85d44778f5545bc6cc803046acf95d133533983d129687bd77247a5521e8688dd

Download Submit
memory/1264-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1264-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1264-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2784-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2784-20-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download