c73ad9cb0f6297a8aee798a88d012146428e8d4b83ba7dbad149d65e6775811f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:28

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General

Target

2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe
Size

96KB
MD5

a30e373936b38b8469a8499a28fae1c6
SHA1

aaafe074e09323207fc32a973f3c791a4d2fda6e
SHA256

c73ad9cb0f6297a8aee798a88d012146428e8d4b83ba7dbad149d65e6775811f
SHA512

bcccfd723fb770e545be5fe591cb35a0c4805999b9c5ce52b5fcfde9d48e270d4a0230a9dc2f7ce3f751f3601aa7f87995c1dfa633301726899f946366046629
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPJ:AnBdOOtEvwDpj6zL

Score

7^/10

discovery upx

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	2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4992	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2080-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000900000002360a-13.dat	upx
behavioral2/memory/2080-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4992-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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	2024-09-19_a30e373936b38b8469a8499a28fae1c6_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 2080 wrote to memory of 4992	2080	2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe	89
PID 2080 wrote to memory of 4992	2080	2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe	89
PID 2080 wrote to memory of 4992	2080	2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_a30e373936b38b8469a8499a28fae1c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- 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:4992

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=3960,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=1308 /prefetch:8
1⤵
PID:4804

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\asih.exe

Filesize
97KB

MD5
d053635bed5616ac57cad6ec988bb8dc

SHA1
af658dee5223b2cd5d62e8ffcb1cf3907a28206e

SHA256
a56eba63427252ebd3d92e791a31df672b8eb0715d6837a13986686045c2a27c

SHA512
21073e821305c52dfee962e073da484ccaf44537b00097861af5913c9bd77a6c408450f265de29cd987a3c4019fdcfc6616cb1c4d51c0d7901d9ed5f87745680

Download Submit
memory/2080-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2080-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2080-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2080-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2080-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4992-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4992-26-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4992-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download