ff5d54c68ca313c6fb75c0b8f564b5c5c43619f76865fbee83ffd90685c73401

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 07:26

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General

Target

2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe
Size

47KB
MD5

27d277759ab102e6a9f153dc12a021be
SHA1

207b8d1f0b2aa5bec7d9baed0b7dd16a05fb06d1
SHA256

ff5d54c68ca313c6fb75c0b8f564b5c5c43619f76865fbee83ffd90685c73401
SHA512

fa9b2f214e4ee00141609dd749523f8ed71162f15c2c6e7629bf2c9d25fbfd29d3ee623e2281851d037cd34827a82c19bb546607b6c3f51c5e2a8d5f1d1f5f2d
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUnJ:vj+jsMQMOtEvwDpj5Hczer5ie

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023232-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023232-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4656	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 3560 wrote to memory of 4656	3560	2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe	87
PID 3560 wrote to memory of 4656	3560	2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe	87
PID 3560 wrote to memory of 4656	3560	2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_27d277759ab102e6a9f153dc12a021be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4656

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
47KB

MD5
b0de86be8a14dff7341e369066097a84

SHA1
dd79befee051236ffe5656c3509c60022109db22

SHA256
435a59bf4b62a9af2a1a7012ffd84ac9f79c3fc68abf24e157a00952c3a623d9

SHA512
52402ad0a5af665d4dc2eb13a4bcd54c4915896959f2c44471efb7a6dc5f9d822c024d20c98c7392ed25aa244c61c87b5269aaf281da655e74690d969d6e04ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
1KB

MD5
b98700d7098440e587c7ffde7370f32b

SHA1
419748eb8ed515eb645fc6e029d2beb47af45c66

SHA256
46d6d7e5a82557c3ae152e70e85ec2752755727ef1de4977993feff7581d8abb

SHA512
7b3190ba8f1876bde81422f27005f3b666b3c4fae01d82d49705344bc64c77afe626082015bcb79033029464eef0f1d980e7057a90d8440adc797b3aa06ad149

Download Submit
memory/3560-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3560-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3560-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4656-17-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4656-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download