115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f

Analysis

max time kernel
17s
max time network
19s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11-08-2024 01:15

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General

Target

115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe
Size

4.8MB
MD5

4586c02a21c9ae7872e9ae7607632739
SHA1

479105e3cd15f24753d0d5e77725fd81b1284c19
SHA256

115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f
SHA512

aee5c5599c23bd3ea5d93ac282e22614ece28c405061dbac9da2eb7551227e1176367b18b52b0960afa7d486260d33bd2561f92d70caa600eaef9b3393e275a1
SSDEEP

98304:FVeM4VwHuokyf28PGcx2HynIiprw0F80XZZb/:zAVwGkx2SnIe84Zb/

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe
1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.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	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{73CC8DB5-A712-4c27-9599-C1BB5F3B0392}.tf	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe
File created	C:\Program Files (x86)\LuDaShi\{882BD76B-B6D1-4c9b-8B2A-AB7EDC7F99A2}.tmp\{378A8225-5ACD-45f0-B4CC-C81D6E80249C}.tf	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2608	1908	WerFault.exe	28

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	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2608	1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe	29
PID 1908 wrote to memory of 2608	1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe	29
PID 1908 wrote to memory of 2608	1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe	29
PID 1908 wrote to memory of 2608	1908	115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe	29

C:\Users\Admin\AppData\Local\Temp\115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.exe
"C:\Users\Admin\AppData\Local\Temp\115c138377952d2398048e0d5f7f6680a6d5359d1fd26aa4c4fc89a4b238717f.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:1908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 812
  2⤵
  - Program crash
  PID:2608

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\{1120D75E-24FD-497a-A018-D1D63A5BAA0D}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
\Users\Admin\AppData\Local\Temp\{FFAC3A3C-ED41-44f1-AD36-B007C045974E}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
memory/1908-40-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads