ef388429ad18b5e57b2e7765fd2eeeac5b00f6dcf2214e05fab6189566487807

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/10/2024, 02:23

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General

Target

2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe
Size

63KB
MD5

0b9641f8d4aa04f57864957c5f26060c
SHA1

c895b2ed93037d857906fa6e219f430ddfa10410
SHA256

ef388429ad18b5e57b2e7765fd2eeeac5b00f6dcf2214e05fab6189566487807
SHA512

d86316c35efe7b0f49d5c2ad45d6255480009e3bcf92e458c454c701e32b6be60503e3914d440925096be9b3a939156bd083aa7b723af5c7e1dcba48c0ac33c0
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zh:0j+soPSMOtEvwDpjwizbR9Xwzh

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3024	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1900	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1900-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000120f9-14.dat	upx
behavioral1/memory/3024-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1900-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3024-26-0x0000000000500000-0x0000000000510000-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	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 3024	1900	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe	30
PID 1900 wrote to memory of 3024	1900	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe	30
PID 1900 wrote to memory of 3024	1900	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe	30
PID 1900 wrote to memory of 3024	1900	2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_0b9641f8d4aa04f57864957c5f26060c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\misid.exe

Filesize
63KB

MD5
11cb67d8c7687a5eda688f84ba659fb8

SHA1
5808fd689ca3e598d744116314888af9ef9b4fc6

SHA256
cc01677d8c11410a44e425f2377c9e200ec7261465e2107ace5e50b97db96bb1

SHA512
fa466efde71a1783613a81b3f2090bfe4752a5345338d1bc8c97f642a2d32314a90cfe67d2fb945fa7498fbeae33d0aa72a19851fb872282b820c4ca7054c2e7

Download Submit
memory/1900-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1900-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1900-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1900-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1900-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3024-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3024-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3024-25-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/3024-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download