9f2d21e7629f9028a4a8576a96bdf9fc0466ba73602e4c8d25a803fbe236c7c1

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 00:36

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General

Target

2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe
Size

70KB
MD5

2be96cbf40b7813ab0b01f8ea945b775
SHA1

4cb21b732a9e971893b3b01a1e94c4b66ad40e44
SHA256

9f2d21e7629f9028a4a8576a96bdf9fc0466ba73602e4c8d25a803fbe236c7c1
SHA512

9be1fadd1b317f13ee47ad54394686017924a9af5f940e6b078c1e9134ca5daa674108455342b62695c1ecf8c868b886fc1aaa1ba463be9b78820f7fca7ced0b
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeB+8x7+:z6a+CdOOtEvwDpjQc

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1296	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4844-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023c3a-13.dat	upx
behavioral2/memory/4844-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1296-26-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 1296	4844	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	84
PID 4844 wrote to memory of 1296	4844	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	84
PID 4844 wrote to memory of 1296	4844	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4844
- 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:1296

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
70KB

MD5
7c955e70aa0a260351a0df40915fcafe

SHA1
b42c5723ae5c5c9add815ebea44be27823181eac

SHA256
22884c6502250183c82a665416dd26ba3f11c997af221ac8a29f6590c55bbc1d

SHA512
146d303a0430d7e364b4728fe44f037ee9fca7af23b0146179e4121dfa76232d213cc61ed34bb5289ebc449c38a02822b43ba80766310d45ee10005814721b12

Download Submit
memory/1296-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1296-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1296-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4844-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4844-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4844-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4844-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4844-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download