2ce5b1cb15878bb9d606e269a644139b3e8df346155572c4bbd91ac1af5c8e5a

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 01:46

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General

Target

2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe
Size

58KB
MD5

23ce4cb6f5e60c3438a071cce3fa0c5d
SHA1

9192ac60c4cc6ee69da3d5d364359668e0f76561
SHA256

2ce5b1cb15878bb9d606e269a644139b3e8df346155572c4bbd91ac1af5c8e5a
SHA512

10de205fc11d019859f0390ea69d8538abd7ed7e0295ac5d6398402469df25c8e9edbc525c5f017d0ad4e2e5c2dbe5dfd10e0d8de79d4325e581e458c2592296
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHb:btng54SMLr+/AO/kIhfoKMHde

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3984	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 2436 wrote to memory of 3984	2436	2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe	88
PID 2436 wrote to memory of 3984	2436	2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe	88
PID 2436 wrote to memory of 3984	2436	2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_23ce4cb6f5e60c3438a071cce3fa0c5d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2436
- 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:3984

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
58KB

MD5
440108e3c7c8d3c5a08060721dc6f2f6

SHA1
a73fc92e820fd1da746e289fa1f015da5909bae5

SHA256
44b31a0d50fac8b8a0d0e894a3258c99487181889a235d60dbd3e0c13885f2c9

SHA512
eb02f7621d9091d89fb0fe4a5801ec6b717ac7285cdaebf0040e36974e3d8ca9416b279369f7a32cff20d5cab5cab184ab910fc856b37670368759a696fef07d

Download Submit
memory/2436-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2436-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2436-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download