fba066f9ddc1638aef932033bbf0c69b129b080cfdde6d6758d556725a6181c1

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
13/09/2024, 02:41

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General

Target

2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe
Size

63KB
MD5

6f4a8427885d5a6080161eb83404a6c7
SHA1

3917be984310d3715b9d7de0161ac7d25adf782a
SHA256

fba066f9ddc1638aef932033bbf0c69b129b080cfdde6d6758d556725a6181c1
SHA512

888fb63b7269058a0b1baefc08dde72151ae6a03fd6b8cca82a9e7967208e294753a960e3f5d5520e49e44079f44aaa9a5beeeb1287377937005d9fc3fa05a6e
SSDEEP

768:P8mnjO6LsoEEeegiZPvEhHSG+gbum/kLyMro2GtOOtEvwDpjKvWxHCbSVaFn0jK3:P8mnK6QFElP6n+gymddpMOtEvwDpjYMQ

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	2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1632	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2464-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000a000000023581-13.dat	upx
behavioral2/memory/1632-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/2464-25-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/1632-27-0x0000000000500000-0x000000000050F311-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	2024-09-13_6f4a8427885d5a6080161eb83404a6c7_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 2464 wrote to memory of 1632	2464	2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe	92
PID 2464 wrote to memory of 1632	2464	2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe	92
PID 2464 wrote to memory of 1632	2464	2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-13_6f4a8427885d5a6080161eb83404a6c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- 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:1632

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=4508,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=1904 /prefetch:8
1⤵
PID:1920

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
63KB

MD5
fc6d807b12e02d44b70418f2033faf2c

SHA1
9149df5ca33720c84667745e8ed2542b6cf28509

SHA256
cf1849f831114e020736c957365372fd9a0ed0dfc1c27379ee1527b8ec84c334

SHA512
8b7f48a643c950079193d49237a42690c16d09fde369a6b04deec7843e34f50fa016453be449e3aff1c92e2541a147ecc857d3b01cffc5933fbbc7e2c4ba8cbc

Download Submit
memory/1632-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1632-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1632-26-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1632-27-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2464-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2464-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2464-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2464-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2464-25-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download