1f8a8d2a927f67ab5c689e30f1543563f536469feabc6be573f5754f45a50b7c

Analysis

max time kernel
150s
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
04/10/2024, 03:22

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General

Target

2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe
Size

26KB
MD5

0064a0c4bb07f87119cb175acdb3889e
SHA1

91cedb7306788ebc08fe75bb9e9813d4554039c6
SHA256

1f8a8d2a927f67ab5c689e30f1543563f536469feabc6be573f5754f45a50b7c
SHA512

c00b558ac44ec7832fc4aedbf1d104544c12b15dcaea151931b69e92b17aaee8e1c93169cf0d04aee53cf35585c1b69ccced4cdca2c24e3e606a0e64f6686586
SSDEEP

384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHBdas:bVCPwFRo6CpwXFXSqQXfjAsmHBdl

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4008	hasfj.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4220-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x000b000000023444-13.dat	upx
behavioral2/memory/4220-18-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/4008-27-0x0000000008000000-0x000000000800E000-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	2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 4008	4220	2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe	82
PID 4220 wrote to memory of 4008	4220	2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe	82
PID 4220 wrote to memory of 4008	4220	2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_0064a0c4bb07f87119cb175acdb3889e_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4008

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\hasfj.exe

Filesize
26KB

MD5
5f47c6e6d33c1702f5c7a0ffac722945

SHA1
b0e5298c2f47be17ff9158ebf693fb991362a9ae

SHA256
1bdb7f3ad7de389509ccd93e1740b75a33028c7e9cd3bfa574ee7f59d1afaa60

SHA512
7f8aa74fc275f8b9948067a4ee44d915a7a57c70ed64c3a557b5c0f0cc152c291ad592ed3cc63f5917861ea410f879ff62ec6910fdc41ac336ead2bdf54928a2

Download Submit
memory/4008-21-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/4008-20-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4008-27-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4220-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4220-1-0x0000000002330000-0x0000000002336000-memory.dmp

Filesize
24KB

Download
memory/4220-2-0x0000000002330000-0x0000000002336000-memory.dmp

Filesize
24KB

Download
memory/4220-3-0x0000000002360000-0x0000000002366000-memory.dmp

Filesize
24KB

Download
memory/4220-18-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download