6775ea0c78fa3f16e69f5c30e3f04acbacad8da689459b72d10010b454c8bd36

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 07:29

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General

Target

2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe
Size

82KB
MD5

9256cd71a3a535f4e76cb852ca4673ae
SHA1

fa49e668b43113eceed1eab89a04aa0d1eaca8ad
SHA256

6775ea0c78fa3f16e69f5c30e3f04acbacad8da689459b72d10010b454c8bd36
SHA512

0c46fbd24b5a5eafc9188810db69cfaf63e2ad05a6feef2366a8aca41b44fff2ff777abf20874d39f7b8bfba0a0be8a6bdba1679e4a85bb4f5b3984b3e68d021
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qin:zCsanOtEvwDpj0

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2688	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2712	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2712-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a0000000120fa-11.dat	upx
behavioral1/memory/2712-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2688-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2688-27-0x0000000000500000-0x0000000000510000-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	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_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 2712 wrote to memory of 2688	2712	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe	31
PID 2712 wrote to memory of 2688	2712	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe	31
PID 2712 wrote to memory of 2688	2712	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe	31
PID 2712 wrote to memory of 2688	2712	2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_9256cd71a3a535f4e76cb852ca4673ae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2688

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
82KB

MD5
b0df9f8cb82040cfd6db1e3698ed680b

SHA1
81bf6f0d03eb86ac5cff64b6ef103b5900b4376a

SHA256
2cbe274f4e2b3f2d76dbb3254feda6200735a09bcca7e4e72e44f8efb917e44d

SHA512
ff78ebd621960ea34c648143f941d1d4f6418caba670641cb554102342f6c972ece0083fa3d0f725c542fd17f059041110d65c1f8e3f3e26e9f71f5cebd8c51f

Download Submit
memory/2688-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2688-26-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2688-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

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

Filesize
64KB

Download
memory/2712-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2712-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2712-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2712-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-13-0x0000000001C80000-0x0000000001C90000-memory.dmp

Filesize
64KB

Download