0f08db1116c81bef04d7f0db2023b8e3b9915a2dfe50acf4e22d3967a8c362a8

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2023 17:15

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General

Target

2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe
Size

40KB
MD5

576ea9e56313d7e8ce4035014e19caa2
SHA1

081c1469f1405bb401a9b3aa7b86b4e2dfcd1802
SHA256

0f08db1116c81bef04d7f0db2023b8e3b9915a2dfe50acf4e22d3967a8c362a8
SHA512

2c6e219fac20ce60e63b5ed5f6df952a355dfe17ed206d35cdb1dff5bcdd02f310891c032ae395d5a3177eec8d95331ad73f8ace7df1614e86ae8458ec18f5bb
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B94IOMHo3sxP1T7:btB9g/WItCSsAGjX7r3BPOMHoc/QQJl

Score

7^/10

Malware Config

Signatures

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-1-5-21-2474409663-2236862430-1045297337-1000\Control Panel\International\Geo\Nation	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
3336	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 4232 wrote to memory of 3336	4232	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	85
PID 4232 wrote to memory of 3336	4232	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	85
PID 4232 wrote to memory of 3336	4232	2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_576ea9e56313d7e8ce4035014e19caa2_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:3336

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
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

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

Filesize
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

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

Filesize
40KB

MD5
96d7cd049f1ad5af31994f93e4ba4d65

SHA1
148b0d2b70fadaf9f254a6396ee09f22dc8a9fd1

SHA256
5a2c62e0de19c536b9c84150ca63a5b6ab4ffb0c3f6c65c11d7570ad60697387

SHA512
01a7674bc9bc03411f0c776a38fd6cd930e44f6a2f2c69c000d593f92acfcb618d3c6503878ff7708f36cbf05fd9444e3d6b8e780230ad43f76c7c2e92c939c2

Download Submit
memory/3336-20-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4232-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4232-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4232-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download