2dbcbe3d989685a3dc03077ee73cafd59e48509453faf2e3b00cd337daf69245

Analysis

max time kernel
138s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 13:49

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General

Target

2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe
Size

35KB
MD5

bb16562c666356d6e0349dae3f4ef936
SHA1

a9a87f98d707adc538994408eb7b98ef9c32f20d
SHA256

2dbcbe3d989685a3dc03077ee73cafd59e48509453faf2e3b00cd337daf69245
SHA512

4aeabf6fdd455665213b212f141fade0a53d8e1ab81f27c11eff5e7cbe2bec5e4ebec65654bcc39fc0d1a519de5b09d61ee8ffc6534ca8aab6661b26bbee2e59
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qe:btB9g/WItCSsAGjX7r3BTe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b5f-12.dat	CryptoLocker_rule2

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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	gewos.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 2704 wrote to memory of 4936	2704	2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe	84
PID 2704 wrote to memory of 4936	2704	2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe	84
PID 2704 wrote to memory of 4936	2704	2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_bb16562c666356d6e0349dae3f4ef936_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4936

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\gewos.exe

Filesize
35KB

MD5
bd864e4f9b6a30d2d4e8d0700e7df749

SHA1
2733ef61632fdab2ccc86114d760af2982da2fbf

SHA256
9459aa2344f7f0ffec58d05885388f8358391e252513db5b99c3e4790e32907c

SHA512
aafe0883fe8bcc79a9129bcd38c4f5f7f6a3a8af94ff5462f0af3c33018e18425d67b5c3719e010e83d17d6046e115bf38e07aeb6e850c66520abdba5d24b3fb

Download Submit
memory/2704-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2704-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2704-8-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4936-25-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download