c4925fff53a8b29c8c953e470f89d67ab7198fcfcc068d8751d59e7b2b8b37a6

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 07:54

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General

Target

2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe
Size

28KB
MD5

8b0a3c01d24ec1f57ecd6f58adba2eed
SHA1

6f1df74adc9e9eeaf6d5d9d12b77200d2985e916
SHA256

c4925fff53a8b29c8c953e470f89d67ab7198fcfcc068d8751d59e7b2b8b37a6
SHA512

49b4f5cec84f98fabee447c8a5e9902f65532b68b84152cdd8d07bd4c7075b00c553bdb82c2ab4f0081869b614846c303dcdda5b643f46f04a65199d1e85bfa1
SSDEEP

384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4YOp4WBtGw:bIDOw9UiaCHfjn3WBtGw

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4436	lossy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 932 wrote to memory of 4436	932	2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe	82
PID 932 wrote to memory of 4436	932	2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe	82
PID 932 wrote to memory of 4436	932	2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_8b0a3c01d24ec1f57ecd6f58adba2eed_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:932
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4436

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
28KB

MD5
6958584410fc0535a7bb836b3218b07f

SHA1
81b6d4628dd4d14b0b77af19b0a610631cbdf2ee

SHA256
7f9436476d94810d5370ea2f4753700dc24ebe881087b22eb5b0d81342ce9d3c

SHA512
2f48842d353861212ead8bf41d82952bacc7a2801208a1a0f56011c8631102d1415fb532f652ec03685b6f19363e6afb16a04dfb884df56a5a5afbcb29aa820c

Download Submit
memory/932-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/932-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/932-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/4436-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4436-23-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download