b96d4df6c340acdda912fa35e7e12929fc3bc34dc55d2cc8ba1850b17a3799cc

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27/07/2024, 09:47

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General

Target

blocks.json
Size

35B
MD5

368ff24dca47212557bca1d3e3d3bc99
SHA1

0d553c77bee32701317df0515d96d8bce316c255
SHA256

1f5f39e10460b00f8cea208bca1c1f0ac26ec00f0df4164c48b0b4e1ac035cd0
SHA512

f9aae0c0212d1bbd0c5845e8e7ca79ac85f4f353e9fbe088917a97d0eb2675ca789e27415ea1b70ee2a92afca1c6525283b04da76d809ae7a379d11a046559b0

Score

3^/10

discovery

Malware Config

Signatures

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 1 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	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2812	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2812	AcroRd32.exe
2812	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2364	1716	cmd.exe	31
PID 1716 wrote to memory of 2364	1716	cmd.exe	31
PID 1716 wrote to memory of 2364	1716	cmd.exe	31
PID 2364 wrote to memory of 2812	2364	rundll32.exe	32
PID 2364 wrote to memory of 2812	2364	rundll32.exe	32
PID 2364 wrote to memory of 2812	2364	rundll32.exe	32
PID 2364 wrote to memory of 2812	2364	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\blocks.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\blocks.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\blocks.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2812

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\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
01aa5202f2173c659daadb005bf007ef

SHA1
cc50b12547113b0781869a51050de3012b2fbcdf

SHA256
bc90fca16deaed6298811615c7cde8252d1382e4711f82c1071f78c61df49b9b

SHA512
7f7ac07a39433a816f732a1a3121ed8c82c5e3d7efa7be8e9d9337ca1a4d0888c7ca20d37698d63e3ab4dab25bae5f72033878869c6297c5aa6fc615a64b0e7b

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