6104a7d32d1b6c6d44776eb628e3aa3afc892ffd187c4cfdd0178b2e792a3706

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
08/09/2024, 19:03

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General

Target

2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe
Size

38KB
MD5

7a33e3125654adfb44425cdc31cc0edf
SHA1

d042a7387c0786d2be1c50e92f3885befea21e57
SHA256

6104a7d32d1b6c6d44776eb628e3aa3afc892ffd187c4cfdd0178b2e792a3706
SHA512

e8a02006313176f4e92642183d36699e569e29632aa0f5ca6e3b1c3afefbf58f15b1683da6d3f481724c09743dc2e6e76b6b60fbd77a30222399baf1d08c495e
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT7:qDdFJy3QMOtEvwDpjjWMl7T7

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2472	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2712-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233ee-13.dat	upx
behavioral2/memory/2712-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2472-27-0x0000000000500000-0x0000000000510000-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	2024-09-08_7a33e3125654adfb44425cdc31cc0edf_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 2712 wrote to memory of 2472	2712	2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe	85
PID 2712 wrote to memory of 2472	2712	2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe	85
PID 2712 wrote to memory of 2472	2712	2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_7a33e3125654adfb44425cdc31cc0edf_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2472

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
38KB

MD5
723781a53d7a7471147e6a74cce2f4ff

SHA1
e27880df7137261cceb71f8cab2a66da83e163cb

SHA256
1b987cc48786e99021d588337eba744c385434bcb5fe1f075f405124d2a047fd

SHA512
6aab60eff7b21882d9245df2b358d1c0dbeca90f63c4d2903c585c14aa42853e46ca80d6797cac52f488250e48b87378d3a9c1948433be70a3f4fd11e70e87f3

Download Submit
memory/2472-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2472-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2472-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2712-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2712-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2712-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download