61fbea2326f47c086e76c6bfa508222733a322b4763fc5dfc46ed5c68e6a7bfb

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 05:29

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General

Target

2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe
Size

53KB
MD5

1cbe336ee917c9740c8ad3411dbb7df6
SHA1

0f38d3d2fc9655a874f9821610f9729edc957dc9
SHA256

61fbea2326f47c086e76c6bfa508222733a322b4763fc5dfc46ed5c68e6a7bfb
SHA512

c56e018b9416ab3f85a67f2a590aee61c06820dc0b9c0fe1c48d643d9c8a9e8e917066da9e6fe13dab9859537ecbefa67a7216ddf895962102aa4ed932035403
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakl8V:V6a+pOtEvwDpjZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
960	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 1580 wrote to memory of 960	1580	2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe	90
PID 1580 wrote to memory of 960	1580	2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe	90
PID 1580 wrote to memory of 960	1580	2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_1cbe336ee917c9740c8ad3411dbb7df6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1580
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:960

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
76928c6eddb93851fcd3bba491684440

SHA1
64e5cf5fbf29553df50f4e438599a520093f5a3f

SHA256
be1803f7816eae2a76f6e8762d29c34905599e4f1d26eaa1651c4ddb168c5315

SHA512
a175bf750dd31139093940c903448ef2e86a99d0261794ad6ef4811a40e92be5691e8ceaf3d92bd044f28e49d57d0257f9eef1d7cfd53a4a5ebaa89ff0841a81

Download Submit
memory/960-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/960-23-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1580-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1580-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1580-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download