5b3136cc1604cee336755cc3d9b4fb818e662fd8ba134935cbee843434026701

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-08-2024 19:51

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General

Target

2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe
Size

392KB
MD5

4d20b7bcb3c6bd4b5a0888ed3a17160d
SHA1

9fe1c9d23b6456f8f748440bdeda4f76fd60670a
SHA256

5b3136cc1604cee336755cc3d9b4fb818e662fd8ba134935cbee843434026701
SHA512

4eb1e2942aa1ac222349f63970fdafc73630f16479bf4094cade1b440f57288168dd4998367bdea4ba764ac7daa31e1da09a9c6ce15e297ba34df6e50ef10140
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXRs:nnOflT/ZFIjBz3xjTxynGUOUhXRs

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
876	hasfj.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	2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 876	4520	2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe	89
PID 4520 wrote to memory of 876	4520	2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe	89
PID 4520 wrote to memory of 876	4520	2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-08_4d20b7bcb3c6bd4b5a0888ed3a17160d_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:876

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4372,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=1032 /prefetch:8
1⤵
PID:2996

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

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Downloads

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

Filesize
393KB

MD5
13ca01e6b02a266199f61d37205c0e71

SHA1
9e491ebd504029646212a97c332e70c03a2c6fbc

SHA256
408d895b1d3cff9dd000032a3d8cbea79fdd422b9db9de48667b13ecfd708744

SHA512
bcfea85124206d959c9767531084c2260d851c011e5a70b301e25ccf55590dc3b025e826b3e27ff0dd6e82fda7fd56dc2404a67d2b8ecf3cdaf723550f98c61a

Download Submit
memory/876-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/876-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4520-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4520-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4520-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download