9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 03:34

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General

Target
9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe
Size 4.8MB
Sample240608-d45vtshd28
SHA256 9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce
MD5 01b3202113150a34b4427a594ef88b6c
SHA1 fed0330cfdff6b8ad85f718b286b7d0ca86ee732
SHA512 56b658265b41af72983cebed06657941fbf1363153ff3139587232756dc73847829c59192920168752fd49a1699dc6f48e6f81db004a7c0f7797b2fbd443d486
SSDEEP 98304:nXHfZysNkdeOVWB4PGrx2fEyMmzHJhYlRJT:nPx1dx2f9MmzHwX
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe
1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.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	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{4C6FC215-48A9-423e-931F-B69B13E37523}.tf	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe
File created	C:\Program Files (x86)\LuDaShi\{4406CF0B-22DF-4483-858B-B3284F733C89}.tmp\{C800CF4F-82FA-430e-ABC3-6CC06208402B}.tf	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2604	1700	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2604	1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe	28
PID 1700 wrote to memory of 2604	1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe	28
PID 1700 wrote to memory of 2604	1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe	28
PID 1700 wrote to memory of 2604	1700	9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe	28

C:\Users\Admin\AppData\Local\Temp\9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe
"C:\Users\Admin\AppData\Local\Temp\9bab2b8fbf182d4e94e64efdad999cb8780e581a6f813ce8e9a3a3b61917f5ce.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 968
  2⤵
  - Program crash
  PID:2604

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

Replay Monitor

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Downloads

NetBridge.dll

Path \Users\Admin\AppData\Local\Temp\{0299819F-0928-42e0-993F-FA4AF5EA26AE}.tmp\NetBridge.dll
Size 231KB
SHA256 98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43
MD5 9d145902fb5b9a6da62ac85761434e31
SHA1 c817d77f59e3767d75cf5f5298d6b5711308f7e5
SHA512 bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9
SSDEEP 6144:EJlU7zM4nGH4Ye1XBINNN8YCh2Jo9TB7PTkRckm:E/SMH4YUXBIfPdo9T1V3
MD5 SHA1 SHA512 SSDEEP

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7z.dll

Path \Users\Admin\AppData\Local\Temp\{9996D617-932A-483d-8D58-8D0071430C81}.tmp\7z.dll
Size 1.1MB
SHA256 0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3
MD5 2706693dda10c6cc79eed24c56d4e5ef
SHA1 4f34ef1bd49273a0d260b9dab15c73eb0ccb6383
SHA512 7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c
SSDEEP 24576:3Z+lCPq8bgPqPRzWu+sjvNfEz0z/JiJXoslp:olCPnbgiPRzWFsjvNffJtsf
MD5 SHA1 SHA512 SSDEEP

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memory/1700-27-0x0000000000390000-0x0000000000391000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads