1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96

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
04/09/2024, 13:43

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General

Target

1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe
Size

4.8MB
MD5

db04741bdb1c4afc34dd6d8caa238bfb
SHA1

3ffd2072dc61bf894cac3ed4cc485fa2eb12ed69
SHA256

1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96
SHA512

7df01ae08091c95f862333801fbfa21e67a727641bae962a255e16895c194200d7b787feaa7520934e68cce5eb6460f54b7dc4b311e88bb4f8391840b173ddbe
SSDEEP

98304:JVeM4VwHuokyfz8PGcx2HynIiprw0F80XZqPk:/AVwDkx2SnIe84qPk

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe
3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.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	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{0585021C-11D4-4e04-8656-4F1DE493C635}.tf	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe
File created	C:\Program Files (x86)\LuDaShi\{5B7DC639-0898-45ce-B17E-5245B655E65A}.tmp\{A72B62CA-9172-4cbf-95BF-F32490B3B5B1}.tf	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2724	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	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2724	3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe	30
PID 3048 wrote to memory of 2724	3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe	30
PID 3048 wrote to memory of 2724	3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe	30
PID 3048 wrote to memory of 2724	3048	1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe	30

C:\Users\Admin\AppData\Local\Temp\1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.exe
"C:\Users\Admin\AppData\Local\Temp\1e81e3ae110fbc6da3887de3915cbd8e4c92ad0a42c2950dc9886c2c876bcb96.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 952
  2⤵
  - Program crash
  PID:2724

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
ef0dc32896f9f665f4f3d63f4d823395

SHA1
b3dbb710e5f1c05217469abc9b02974f224cc601

SHA256
8139b41b75fd5ac51c030ec74e68ed3a44d0dd10b88522fc7795a436cb2a6f9d

SHA512
19735ec2d6e25c46e400a5ceb8e915b1c7ad2e3ff48776255bbeebf01e851cac0de91b8f3eb1928432b0fbbff8a10ac6aa0b2aafcaf362da71d2c47014ffeb97

Download Submit
C:\Users\Admin\AppData\Local\Temp\{0458E4E0-E23C-49a6-9348-6B43228C5870}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{39A4E736-AD80-4c6f-9796-C1F951428413}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/3048-39-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads