9f8d18eea280bf44145d76ea20bb2f610f3c89655eff2b24375cc2dec346d1e1

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
24/05/2024, 03:56

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General

Target

2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe
Size

39KB
MD5

ab2b725deca89b800db06c3c84694678
SHA1

0186916a52138d3e28b7d814c8f70744dd5428cb
SHA256

9f8d18eea280bf44145d76ea20bb2f610f3c89655eff2b24375cc2dec346d1e1
SHA512

3fe0c7df57a6778886fcc35532aaa4288f93a0574409a30bf0fcda0c52601725b79b7ba8dc3893b05bac38c6d14f52c226d5393880f03af1cd76291c5e4464eb
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8L:btB9g/WItCSsAGjX7e9N0hunRvGIV8L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023298-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3412	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 4732 wrote to memory of 3412	4732	2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe	82
PID 4732 wrote to memory of 3412	4732	2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe	82
PID 4732 wrote to memory of 3412	4732	2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_ab2b725deca89b800db06c3c84694678_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4732
- 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:3412

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
39KB

MD5
54bfdf0b8f7511f03b30390d638b71a2

SHA1
68e83d2ca2e6fd3276229ba71379aa81f4d7d939

SHA256
9dbddbe5a25fc8e081a040bb960d267e3b7e9c55462a57d969f900c15dbd1a19

SHA512
ea32470e668c9722a95ecd0277e2998f8fcbfb9b3e7fa1dd4d546d7f777edab57be38e749b55473a5434ebe1910880a76068a45e40d04ba639acf611d1c2eb1d

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

Filesize
185B

MD5
5196a7c09fb859fad3becfc05fd26c38

SHA1
f1614ef2b4cf3e8104c3bbbf1f6d851f23ec5ada

SHA256
74710925935da8e50c03e621472a9861afabcf5b8e1e16cc5597db0437988f40

SHA512
73c051a28cfd25880b8e7120613bb965d85e794694474263f50f3cdd7a6de4e3227d56aafc8c1a5960338966940beace984898e524e71a8b9ae546e1953a7bf7

Download Submit
memory/3412-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4732-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4732-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4732-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download