216ce6d73481e36eccf554ab02d89406904cb45c867d6655bfbf2ed157a4c3e4

Analysis

max time kernel
150s
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
08/04/2024, 12:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe
Size

32KB
MD5

82dbba3845224eefe6fe406a553394fa
SHA1

2d2ea506b8e6161f70ddc02f960d78f55647349e
SHA256

216ce6d73481e36eccf554ab02d89406904cb45c867d6655bfbf2ed157a4c3e4
SHA512

60d0f1974e1d6237101c76ae90fbf09435a39a7a2c343efc47b88171b925c38f3a18043f9fb779e98ceaaf7de691792b074232a1ebd6cf3adc308418144c8421
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/BVqC:b7o/2n1TCraU6GD1a4Xt97qC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023231-12.dat	CryptoLocker_rule2

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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2352	rewok.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 2028 wrote to memory of 2352	2028	2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe	87
PID 2028 wrote to memory of 2352	2028	2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe	87
PID 2028 wrote to memory of 2352	2028	2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_82dbba3845224eefe6fe406a553394fa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2352

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
32KB

MD5
6a1b31eb3d45798e2a8aa52b53989b49

SHA1
0df0455aa53fb1876d397a97ee48009a15b211a6

SHA256
bb6114749d2906a43da16ab8addf3684a4c994e75669d3e07709548e6673596f

SHA512
f0022ffb23594ba21fcb33c84173b166a54287b5f999f8ca5212cdd4aa4f74664476839709b709a4573b198d338bc58bc2224b064aaf3acc3c6e5e2364274cb7

Download Submit
memory/2028-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2028-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2028-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2352-19-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download