7b7f4e36c64905a2b9bbda14020cd2419c0c5fcd4ed3ab824e4b8a2271945ee9

Analysis

max time kernel
93s
max time network
94s
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, 04:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
Size

64KB
MD5

d832d3808180a2094f2dc19a4ed0f732
SHA1

1ea9135b8f9f17c0dad22396c56da25f17e557a1
SHA256

7b7f4e36c64905a2b9bbda14020cd2419c0c5fcd4ed3ab824e4b8a2271945ee9
SHA512

83867819a63cded055c891280e24c9bb0cf37f76459a6ae49057c3672d5ea6eb3ca5cfc49ed0d425ce38e7d2d079055eb943b9b47718f852e206c3d975168c2b
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxp:btng54SMLr+/AO/kIhfoKMHdPp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023289-12.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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	gewos.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1036	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 2480 wrote to memory of 1036	2480	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	82
PID 2480 wrote to memory of 1036	2480	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	82
PID 2480 wrote to memory of 1036	2480	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2480
- 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:1036

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\gewos.exe

Filesize
64KB

MD5
24b44cee2a59a5a44dfb8a001e5cd19a

SHA1
4e46bbc9fd14b957467f47a4e44f4fbe6653fe27

SHA256
2afab3ad47dfa191d496fef32304e09b19fa948cb666878e9dc3662ad0d0bf16

SHA512
79fd878629037b00bc341c4db63fc2fd6bf77f302915397f1abaed611d7ee6c9d51a3625326c0e54552d212b9e2b3da793b63f547976fb2d6764e73af2f74896

Download Submit
memory/1036-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2480-0-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/2480-8-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/2480-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download