7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 15:05

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General

Target

7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe
Size

4.8MB
MD5

ae5612d6aea49aa79b90a048cf46910a
SHA1

be39271465a8340d4c070b8c1a2395709346dd80
SHA256

7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c
SHA512

4031cc887465ac609e4912a345d7ea22451017f88005ac37411345c71ddcd6ff115df284011d4c2264662e5a36ed1fd04c980218babacd615cfbe087244225f5
SSDEEP

98304:cVeM4VwHuokyfK8PGcx2HynIiprw0F80XZeG9:6AVw6kx2SnIe84eG9

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe
2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.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	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{D299CBF8-ADC6-421b-803F-42A9A948DD00}.tf	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe
File created	C:\Program Files (x86)\LuDaShi\{600B26B4-1543-4b7f-A42A-88592D0D2041}.tmp\{61B4ADC5-ED84-4c26-9600-D8998753F057}.tf	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2584	2868	WerFault.exe	27

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	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2584	2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe	28
PID 2868 wrote to memory of 2584	2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe	28
PID 2868 wrote to memory of 2584	2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe	28
PID 2868 wrote to memory of 2584	2868	7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe	28

C:\Users\Admin\AppData\Local\Temp\7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.exe
"C:\Users\Admin\AppData\Local\Temp\7dbc0544119b2224d2d02ca17bb385c184feb3fa767eeab028696124fa8b5f8c.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:2868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 664
  2⤵
  - Program crash
  PID:2584

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

C:\Users\Admin\AppData\Local\Temp\lds_setup.log

Filesize
978B

MD5
561a86244f954f1d8957f8d44b6c0a9a

SHA1
be47a04455c7e5a2044df89348f4283296e571a6

SHA256
128ff6a20f68db32dfd855357134074864da7bcde29e46c1aa4eecad73893850

SHA512
a4866d69b168c68affc8c46a69bcaa1182b2655dab67482782a20ba6a41d3a00b2132be0bb880b1dfb990e957e07acb8e35f384cd2c2777d0730b311cb20b75b

Download Submit
C:\Users\Admin\AppData\Local\Temp\{23245008-78B5-4335-A9DE-96EA3E2D484F}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{87F51A4A-0D52-4b98-AF63-CFF6E432D695}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2868-39-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads