6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07-01-2024 07:10

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General

Target

6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe
Size

4.8MB
MD5

c8281e20d500071280da304dfc861404
SHA1

61beafec2b0507ac39b37c4a2f29bf1ca5f2f07b
SHA256

6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193
SHA512

913d336da33e31794acb78e20922434c332ec449ea8f108e7919a6dae8fff4e7b9fc74cc02e55a9e9da4045650b4fe42e4b1edb5d240a6baab7ba255cf33b6a4
SSDEEP

98304:xt9OGW/KHV35P/9vyPGrx2fEyM1RHJhl1IxpP:IcBx2f9M1RHp1IPP

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe
2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.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	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{9BAB6663-F94A-4e0b-B36B-FBB147C4F4E0}.tf	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe
File created	C:\Program Files (x86)\LuDaShi\{FE0CF2CD-2B16-4d08-90C3-1A938C76ADBD}.tmp\{34045A6C-6950-400f-9525-CBFBF64769C8}.tf	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2596	2320	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2596	2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe	28
PID 2320 wrote to memory of 2596	2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe	28
PID 2320 wrote to memory of 2596	2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe	28
PID 2320 wrote to memory of 2596	2320	6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe	28

C:\Users\Admin\AppData\Local\Temp\6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe
"C:\Users\Admin\AppData\Local\Temp\6b36d6d18457d88a2caf84ba11f8e62eec7a310f0d40d563da429b90c0ffe193.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 956
  2⤵
  - Program crash
  PID:2596

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\{1C32BB2E-69CC-4284-A88A-DF75797FABB6}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{E5680EF6-3698-47ba-9526-6DF99F58294E}.tmp\7z.dll

Filesize
1.1MB

MD5
2706693dda10c6cc79eed24c56d4e5ef

SHA1
4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

SHA256
0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

SHA512
7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

Download Submit
memory/2320-27-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads