64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/11/2024, 13:11

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General

Target

64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe
Size

3.8MB
MD5

c494e0bd40fe7164c0cf6e6c0ab48186
SHA1

a03043064d7f95a678e11f600550f4fa127bd07a
SHA256

64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d
SHA512

b3ae43aa81da5a927d5382ee344d091a4e739b36d327bf7654bb8bc649fdc5eb52f097d8287746c724527fde3b874a3ed34f24118bdc564065ec81e08118ee9e
SSDEEP

49152:0sNwoFRoyw9Yxq8A5CVzPIygMuSGOp09B/pwJrN6GFVfoPpNf9CXmYnMBR/Gli:bNwoFWyFGCTgBVPG5o28N1bYnMBN

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe
3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{8494B47A-EEDE-4373-AEBD-CA305418252E}.tmp\{D1CF2972-FD59-4c51-B7E5-E6B0BCAD5336}.tf	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe
File created	C:\Program Files (x86)\LuDaShi\{5C89D90E-EF67-4d20-9838-E6BE19AF4588}.tf	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2900	3048	WerFault.exe	29

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	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2900	3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe	30
PID 3048 wrote to memory of 2900	3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe	30
PID 3048 wrote to memory of 2900	3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe	30
PID 3048 wrote to memory of 2900	3048	64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe	30

C:\Users\Admin\AppData\Local\Temp\64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe
"C:\Users\Admin\AppData\Local\Temp\64e055d6b71f186e6fd3f70f85cd0ce036a22c0e86f7e5e2a1c0b75ac999382d.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 652
  2⤵
  - Program crash
  PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\{27E30546-A2EB-49eb-95A3-15B3EB112180}.tmp\7z.dll

Filesize
1.1MB

MD5
2706693dda10c6cc79eed24c56d4e5ef

SHA1
4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

SHA256
0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

SHA512
7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

Download Submit
\Users\Admin\AppData\Local\Temp\{3FB19879-D6EE-461e-8690-2C8EDAD21182}.tmp\NetBridge.dll

Filesize
238KB

MD5
8786d469338c30e0ba9fedfc62bd5197

SHA1
5fb12028ceae9772f938e1b98b699f0e02e32718

SHA256
beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f

SHA512
5db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c

Download Submit
memory/3048-27-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads