129b4dcfcd11db17ad7c2ce9b3bc6cbf88d6eb62b768ae038b88b5db2c887842

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 16:33

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General

Target

2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe
Size

34KB
MD5

437d017041692f428b361290cac9e8d3
SHA1

89e8551c62523cb4c28e7d77d12cd2a0b2f08ce7
SHA256

129b4dcfcd11db17ad7c2ce9b3bc6cbf88d6eb62b768ae038b88b5db2c887842
SHA512

a9cdb75f96a8c3e432acc98c22c463dc094b9c02e9fe185cf0889fd566453d894323721c7ddb798fb99c6a01026d63b13ac58f35ab4eca90e5fec0dbc3abb4a2
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+45FK:fT+hsMQMOtEvwDpjoIH50

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5020	misid.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 316 wrote to memory of 5020	316	2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe	87
PID 316 wrote to memory of 5020	316	2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe	87
PID 316 wrote to memory of 5020	316	2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_437d017041692f428b361290cac9e8d3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:5020

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\misid.exe

Filesize
34KB

MD5
866857f07558a56d84c02c56dc39f326

SHA1
5370a4a878e248520ed0b360bf538b75d06be4b1

SHA256
72469c080d70870ce9d8e292f76e09933ac4b70bc0b19cb49efaafb2e5f8df0f

SHA512
58bae9ea3f18f748ab4f161cd74aea7e6896506488d510fc8eef1535665394b9a56e908138a5f6f0376b945c7cdecfbda8b337adecdfe80f556f3e348796fa07

Download Submit
memory/316-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/316-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/316-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5020-18-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/5020-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download