c59c39ebfe5ef4878ff6a75ce3ca8d16e0b91b777bd7dc20eae2bff62d025c5e

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 04:41

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General

Target

2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
Size

35KB
MD5

c060a320d7b911f3998f31b399ee1798
SHA1

02520a3e96a121899474b1f4349c83f4a42299cc
SHA256

c59c39ebfe5ef4878ff6a75ce3ca8d16e0b91b777bd7dc20eae2bff62d025c5e
SHA512

96b282d1c701d7484fc23d28b0a1faf708ccf36052419f5dc78f1f021cfbe5f0208851f25d7abcfd964a86ff921c9fa219b089fb8aef9f32bb12153ddc1332b8
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZRH:btB9g/WItCSsAGjX7r3BTZRH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1944	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 1944	4232	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	82
PID 4232 wrote to memory of 1944	4232	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	82
PID 4232 wrote to memory of 1944	4232	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.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⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1944

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
995e7dd977d149c2e8cccd559655dce8

SHA1
c204464e0af5d4b7373435be92e54f17eff59bff

SHA256
e64d3f25ba2a922a10d52f6b7af479d2dcee3329ae2c26d83da3e1ff71ef163d

SHA512
7ff915292f7c5a5e6440be535cb694a437b274f75876b3820dd87c0295cb7cb3410f6567bf63bf500b4caf98deaf3a0c1a3b985166132484ae396eea6802fb98

Download Submit
memory/1944-25-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4232-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4232-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4232-8-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download