e6ca0012488fef9c610548e43ab587b873fdc86c21a4d292aced3669a0ffc199

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29/04/2024, 19:42

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General

Target

2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe
Size

61KB
MD5

60a35fc6e78bd695d542e90e01181959
SHA1

31d6e4e60d42ad7b0b54293a7c6df3a8a05d1f67
SHA256

e6ca0012488fef9c610548e43ab587b873fdc86c21a4d292aced3669a0ffc199
SHA512

d8a75e58fd5fb031dcdf09a0f26cc4a22cfd7f7f3bd060825c66073f3357c551a1176c666802dc65e4f9c5a10c41b7a449e6755695ad6894fb170f0016bc5ee4
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnd:btng54SMLr+/AO/kIhfoKMHdad

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b25-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
908	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 4896 wrote to memory of 908	4896	2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe	83
PID 4896 wrote to memory of 908	4896	2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe	83
PID 4896 wrote to memory of 908	4896	2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_60a35fc6e78bd695d542e90e01181959_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:908

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
61KB

MD5
55cddee3d49c6f6afc3661c1e5a0d6ff

SHA1
c39a9fbf3842475748df5c083f5ebbb008d8796a

SHA256
a3d757f899f1bcb1573068490c6b9de75057071f9cd8a27e597788c561123f51

SHA512
d611f1290f2e77f10cb634dc17b247c46340ce7faaa903a117cc6f68626bfc005935119759d45d5ce2effe9ce1d5813fd77441e26bd439eb653d3010b64f032f

Download Submit
memory/908-19-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4896-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4896-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4896-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download