318652fb729cfaf358ac4f8fb821c04b0057c14abece182475a15a8f1f947b90

Analysis

max time kernel
150s
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
28/04/2024, 05:23

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General

Target

2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe
Size

64KB
MD5

04aacd6aac3195729474912f5a2cd705
SHA1

61c0051e68c7cd49d9685b568910475553a6e564
SHA256

318652fb729cfaf358ac4f8fb821c04b0057c14abece182475a15a8f1f947b90
SHA512

9d1bb2bb3dd99f805420e734d9ff5587210af99820473b74f0cfe331146e3ed0554a018c302a09c87edad4b986fb7ad457763a3e18f77493ec6613db6f023881
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdwq:TCjsIOtEvwDpj5HE/OUHnSMYG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/808-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000d000000023af1-13.dat	CryptoLocker_rule2
behavioral2/memory/808-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4496-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4496-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/808-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000d000000023af1-13.dat	CryptoLocker_set1
behavioral2/memory/808-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4496-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4496-26-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4496	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 808 wrote to memory of 4496	808	2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe	83
PID 808 wrote to memory of 4496	808	2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe	83
PID 808 wrote to memory of 4496	808	2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_04aacd6aac3195729474912f5a2cd705_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4496

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
64KB

MD5
8249d362e53f4327aa36d8e9126070f3

SHA1
5e7a16832768035b22de6578ca134d529f145728

SHA256
6a84e20e99a616d251d8a7befcf0fa5ea668a9feaa453eda9096661086b8670d

SHA512
aa20d7d57c7fb41df4ad53b77c5a08c25296c29131439f56c59804cd486eb4642856db30f2c63f64794caf9513c3507bc3ba5ecae20df0c1d43558b2890e79d2

Download Submit
memory/808-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/808-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/808-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/808-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/808-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/4496-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/4496-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download