fb85bea8f92e910d53edabb8310b9f0bff1fa6b0a5d89129068e3b514adb5ea7

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2024, 23:44

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General

Target

2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe
Size

30KB
MD5

259b2bdd5009e3316cc571ad5c1cd777
SHA1

c55bbd9f56904b05395598ae240f9bdae0bcbcaa
SHA256

fb85bea8f92e910d53edabb8310b9f0bff1fa6b0a5d89129068e3b514adb5ea7
SHA512

92fb4240e463f04fde7ac31404d585b392c2a6b3fb620f913f8599a531673ecafc78614732411ff35ad754095fd99c4bf7fb69a4cb052668fd0aa0b5dfb5264d
SSDEEP

384:qxOZzyjOnqGAs+8ULueO4NdE8tOOtEvwDpjqIGRYK1sGGYt9non:q0ZziOWwULueOSdE8tOOtEvwDpje6n

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
380	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	2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_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 2312 wrote to memory of 380	2312	2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe	85
PID 2312 wrote to memory of 380	2312	2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe	85
PID 2312 wrote to memory of 380	2312	2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-08_259b2bdd5009e3316cc571ad5c1cd777_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- 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:380

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
30KB

MD5
1970127ce095a85f30e98252d466a8b9

SHA1
59a3b7bd0f4d92abbac449a09e617350016af0ec

SHA256
609a272d19acbfcd051d0ba7c53163d5ea3107d9f58c1598173d3b0c9789ceb3

SHA512
f7030402938703e135889175201302d03568b6f54d734c53ab626a523bd923e8297e73958dd801848baa5a8f4c61cfac6fc555b4e5fa7d8ec99309860d9e5485

Download Submit
memory/380-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/380-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/380-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2312-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2312-4-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download