7fd3bca171d184dcdc90c9da589dc1c4d143f0304b730a566c7ed9b66e8b46b6

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 02:10

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General

Target

2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe
Size

59KB
MD5

2a0d378823e47e0d81084a66ca4d55b3
SHA1

95ceb2b3055fe0e4931ed2d31db076317da765ee
SHA256

7fd3bca171d184dcdc90c9da589dc1c4d143f0304b730a566c7ed9b66e8b46b6
SHA512

95dcc7531f584b5a142cb89f03727429af04bd0b8e8675cf941e0643ee80a506e7b3025b4de1ae06926fa129713d6a73b0c1fd12730e0894e2cae1333576ea7e
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP6px:H6QFElP6n+gou9cvMOtEvwDpjCpVXv

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4544-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b5a-13.dat	upx
behavioral2/memory/4544-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4488-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_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 4544 wrote to memory of 4488	4544	2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe	85
PID 4544 wrote to memory of 4488	4544	2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe	85
PID 4544 wrote to memory of 4488	4544	2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_2a0d378823e47e0d81084a66ca4d55b3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- 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:4488

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
60KB

MD5
2c6dddc9c87c79ea6ca0dd2c20820ecf

SHA1
8d67cd7bddea2000325779faf224606f54a40d91

SHA256
6ab9ccd0e0a56600e71174b3036ca67b89c47eff38ea581f99e8ce0e8c893da3

SHA512
b0653786524950b6062aae4a1ccbad417ce56c5c2463b8f269cb679b3fb4f981941da4f92f654677eaa10d812550dac20632bdb0f1b90f9ec0d105276fbcc431

Download Submit
memory/4488-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4488-20-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4488-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4544-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4544-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4544-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4544-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4544-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download