2122bb760ae2a0e46627f0380fe2a971dbd6c2742eaf6736697b5f6a2b4eb6e0

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 04:31

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General

Target

2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe
Size

39KB
MD5

781148dc3c8b0fae02141535e6873321
SHA1

2e6178d8cb185e870d1cf81ae289c9829d7e012c
SHA256

2122bb760ae2a0e46627f0380fe2a971dbd6c2742eaf6736697b5f6a2b4eb6e0
SHA512

9079a94847569dca2e63a86230eca26f0c57696ffe38470c8bcbbc936fc3f5a65d7110d96fe8c83e50bb108de1105f13f1d16e76fec3c81f1d22b8c173a63e9a
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT0:qDdFJy3QMOtEvwDpjjWMl7T0

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
628	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3132-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0008000000023455-13.dat	upx
behavioral2/memory/3132-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/628-27-0x0000000000500000-0x0000000000510000-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	2024-10-03_781148dc3c8b0fae02141535e6873321_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 3132 wrote to memory of 628	3132	2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe	81
PID 3132 wrote to memory of 628	3132	2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe	81
PID 3132 wrote to memory of 628	3132	2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_781148dc3c8b0fae02141535e6873321_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3132
- 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:628

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
39KB

MD5
df0d5bb96232c3e79c9fcc24d5d20206

SHA1
d118a150d320bcb7fb8b0d344827c700ee503dfb

SHA256
8a7e785dbfba6ffcd6222164af0590726cfbec735e36e9c840794a4b02a5c3c6

SHA512
a607025c574ebfef8166f1838d38ee695cb303142bf9eb718ade4fdca6845502de5f191ed28c65b34ee1aa23ba49a1c99eba1ed6a9051122fa4e05e6b1416e26

Download Submit
memory/628-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/628-26-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/628-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3132-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3132-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3132-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3132-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3132-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download