0e131ed6555068513035088fd0a25944f2f0daec2428b40f9cdfda232dc718d9

Analysis

max time kernel
148s
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
30/04/2024, 04:44

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General

Target

2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe
Size

45KB
MD5

4932bb0b3097cdc77901dc9aa8248f5c
SHA1

39797b9fb7b79a25d276e2ad0a9e92413785d880
SHA256

0e131ed6555068513035088fd0a25944f2f0daec2428b40f9cdfda232dc718d9
SHA512

c4b35bef38059ae9e12fdc84628d282f4269b819378cbfaba8131ad687ad9c4bdbf60341f567f9035d40df2a6638e106f8f45a2c9566d0f3f0121b6cf47e10fa
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsE:V6QFElP6n+gMQMOtEvwDpjyaYaFAh33

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b62-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b62-12.dat	CryptoLocker_set1

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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3776	asih.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 3732 wrote to memory of 3776	3732	2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe	85
PID 3732 wrote to memory of 3776	3732	2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe	85
PID 3732 wrote to memory of 3776	3732	2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_4932bb0b3097cdc77901dc9aa8248f5c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3776

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\asih.exe

Filesize
45KB

MD5
9f7e33e9e3598dc75f992c852bc0185f

SHA1
8f650f83fddf805cb5a8a90681cb1f754680eeb7

SHA256
5a913d7e258ea2186baac4c1b5ee3c7aa84da336a5458777fa8ad5191a2ac5bf

SHA512
210b9c92c15fc2993bc83b97ea77fe4c09acbe8e1f1b174f028ccd9ee6793ea83136c20980568ba33ae27f8f9cb2def9d3721ffddd9f3d4e475566fcacd34f13

Download Submit
memory/3732-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3732-1-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3732-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3776-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/3776-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download