54b0a20d96b9248f1c8f3166dde79fa8b53f6d5b281120240965b2cdd7cda0c6

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 14:47

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General

Target

2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
Size

35KB
MD5

7c6735673817ab8a73ee416db7f6a0b3
SHA1

76d5129607f3afc2c66988a2f813f57fc7fbed01
SHA256

54b0a20d96b9248f1c8f3166dde79fa8b53f6d5b281120240965b2cdd7cda0c6
SHA512

2683837cca655c508455fe6131367a31bcd50e0d3655035121592ddbe578557a89f8d91cb7d185ad3c7c37a13db399eaa076615ffeae138249c29c390446648e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMowJ:btB9g/WItCSsAGjX7e9N8sp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002323e-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-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4176	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 2496 wrote to memory of 4176	2496	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	82
PID 2496 wrote to memory of 4176	2496	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	82
PID 2496 wrote to memory of 4176	2496	2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_7c6735673817ab8a73ee416db7f6a0b3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2496
- 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:4176

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
ee49354706b23e1383698ca56d25d08f

SHA1
08f1a0b5a4030bd27e4c12b8b8bc475ed02c0637

SHA256
e6e23ecf7d312cc8172fd2201f0dfc59c29030c0cf3d3bde44ddabdb2bf95d9b

SHA512
99fa283bdc80b3f927e86543908ab47e793a5bf44adc7062f82b56e4ceb7aba8101fe1f40bc82cd3937f04495bf766448bc81144754dccb49c78cfc10fea8278

Download Submit
memory/2496-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/2496-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/2496-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4176-21-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download