9d12430e2e2c203b1a45161bc239ad2effdc9d48607f4e6a127b8c977ba13161

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 20:24

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General

Target

2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe
Size

62KB
MD5

1d9ad202ae95751fe92a5eab7d13a6e5
SHA1

9d779da7134de4a88cc6f1c17b71900405360bc1
SHA256

9d12430e2e2c203b1a45161bc239ad2effdc9d48607f4e6a127b8c977ba13161
SHA512

c71ccf1a7701d1b727401f4602d515d7dc944857e801790d480a4ba6fe371325409905ff94b18130bb1a5514755f0c918985521afa564c18247d78b64cfbc07f
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnx7:btng54SMLr+/AO/kIhfoKMHda9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023276-12.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	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 1040 wrote to memory of 2136	1040	2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe	82
PID 1040 wrote to memory of 2136	1040	2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe	82
PID 1040 wrote to memory of 2136	1040	2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-19_1d9ad202ae95751fe92a5eab7d13a6e5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1040
- 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:2136

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
62KB

MD5
3acc8325dd382ee5e209863f31c60181

SHA1
e7d0ac3c6daa7cd70568553867b7220077950b13

SHA256
42e5c1041414931ddd9f57ff0d09c8005a9dd1e675eaa4a0508715e8575c5a30

SHA512
831d7335522b7904df8d5c6faa3fbcbb11174266db1c8d60be96cf969683fc01d5b429a372c74cea16dcb29e0485a12ab20fbf5cd44d3dd3c57f86b4600f1e9f

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

Filesize
185B

MD5
076136ea9574a55fe7ae9e1442884ef5

SHA1
6b6ac42a6f7ff05223f711e8fa8d2a122e4da9d6

SHA256
35591690c1d6c1dbf5fdbda9f003001848f247f6cd65139e48405c390f0d7669

SHA512
ce81453b0302f5ee4b4236ed3ba31264a44b91a5b455fbf17e11d803e3e05494de94f8349508c5cd52dc7b62c187c1c5d928ef5c4b3f5d0066cdc17782779ab2

Download Submit
memory/1040-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1040-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1040-8-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2136-25-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download