17593d1b4868c7f694e6b1867ee378fdb32c8772c60722ecc0b5312b74e1e003

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 03:32

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General

Target

2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe
Size

55KB
MD5

a8af2d325e37b93bcbe0fbdf29202e30
SHA1

05d8d27735ac2b5444ffb851e0e842f3262e0d7d
SHA256

17593d1b4868c7f694e6b1867ee378fdb32c8772c60722ecc0b5312b74e1e003
SHA512

33af20d75c4f7a149d4be46b76cccc58bb7f1fe64381c54a774185ef8d8a98c258170a4c5871c7044bdf0f860d906f6e11ee4476a977c0f6ec3a47e3cb0f118c
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOk/96:z6QFElP6n+gKmddpMOtEvwDpj31ik/96

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	2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4796	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023604-13.dat	upx
behavioral2/memory/3000-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4796-26-0x0000000000500000-0x0000000000510000-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	2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_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 3000 wrote to memory of 4796	3000	2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe	89
PID 3000 wrote to memory of 4796	3000	2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe	89
PID 3000 wrote to memory of 4796	3000	2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_a8af2d325e37b93bcbe0fbdf29202e30_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000
- 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:4796

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=3924,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
1⤵
PID:1520

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
55KB

MD5
f66f3bccfc47eb30db20ec7cbc59ee3b

SHA1
169021b148baf3e8184baafbd2cd3d25668a09bb

SHA256
70b79c2e0e431df365c1bd221ceaa5fa655f3f43ea44df8a76bb3bad67c7a5da

SHA512
223c6645a0d1eb2ce6c13886cd4a20ab9a74bae02aeeb9a209fa157c36ac3ff1a5e2c30b030b0d2a300fa5c0c41f3fb052da90e0b17b41e4312377108acbf81c

Download Submit
memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3000-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3000-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3000-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4796-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4796-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4796-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download