3761c4da001b938ebaeeb18a3d34c81bddc1279ea66042a94f7df25117a6eac1

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-08-2024 13:44

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General

Target

2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe
Size

73KB
MD5

0b5ae4b9b577ef3fe6e7d8719b4e4d79
SHA1

848271bb6936484b9a460aceb5a7885c18a34aa8
SHA256

3761c4da001b938ebaeeb18a3d34c81bddc1279ea66042a94f7df25117a6eac1
SHA512

171d4e64e1a60fd566a8ee851556212911f2569a57d95e651f50b17f764fcf3fd5740eb20903f22eb2c2caeefd6bde2e9dd78c0721309de5a4f2f1b35188056b
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOQ2B:DW60sllyWOtEvwDpjwF854

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	2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	asih.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	2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 2648	220	2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe	92
PID 220 wrote to memory of 2648	220	2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe	92
PID 220 wrote to memory of 2648	220	2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-20_0b5ae4b9b577ef3fe6e7d8719b4e4d79_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2648

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=3984,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=4056 /prefetch:8
1⤵
PID:3392

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\asih.exe

Filesize
73KB

MD5
9a6b475da6317fdf4983d7ad35fa772a

SHA1
03f4dcd31775750ed89cceb687f45edbac4a6c3d

SHA256
b37f16e261bb8dfe95a42d69c18ebbdcbcc5977e4bcd64ecf5660b653b36e7c8

SHA512
9d6f24ff224f10e3e1729fb385882adcd5eeed60b3003933b9202d3a6061df9aae78239c33dce63f9ca20e5b5e122141fe6ef3a765eabd17a716aae856305e5b

Download Submit
memory/220-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/220-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/220-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/220-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/220-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2648-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2648-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download