36d5fd64e38982141541a189be1167da8ce93559a5a2d0689a75553becac94d4

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
11/06/2024, 04:05

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General

Target

fb326ae60a37fe1d72f7c0ec82632378.exe
Size

41.9MB
MD5

fb326ae60a37fe1d72f7c0ec82632378
SHA1

0de1b37e179a44f880e7ff49f4cc607b943958e9
SHA256

36d5fd64e38982141541a189be1167da8ce93559a5a2d0689a75553becac94d4
SHA512

b5a174a8131cbfbef847daaf00ea48ce80f0a3127f873c99e95619ed3e390738716723deaffdf76ea8da14a27a67d8304dfbe8154401a5dd4f7312f57cb5d99e
SSDEEP

786432:xwvnIe84yEZwcCUmeaeYzeyChA/tQ1/BJ754U/Hz4gQ7sCZzEECamVf:xwvn7yBVea3zFCK/8J75RvzZ6EEgVf

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2008	fb326ae60a37fe1d72f7c0ec82632378.exe
2008	fb326ae60a37fe1d72f7c0ec82632378.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	fb326ae60a37fe1d72f7c0ec82632378.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{2AC457D8-291D-48f8-92C0-B8AC9F66C7B2}.tmp\{DAFA0DD4-C7DB-4c0c-A38D-5F323768791B}.tf	fb326ae60a37fe1d72f7c0ec82632378.exe
File created	C:\Program Files (x86)\LuDaShi\{ECEDA0C2-8251-45f9-B5BA-44951C8F9EBB}.tf	fb326ae60a37fe1d72f7c0ec82632378.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2832	2008	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2832	2008	fb326ae60a37fe1d72f7c0ec82632378.exe	28
PID 2008 wrote to memory of 2832	2008	fb326ae60a37fe1d72f7c0ec82632378.exe	28
PID 2008 wrote to memory of 2832	2008	fb326ae60a37fe1d72f7c0ec82632378.exe	28
PID 2008 wrote to memory of 2832	2008	fb326ae60a37fe1d72f7c0ec82632378.exe	28

C:\Users\Admin\AppData\Local\Temp\fb326ae60a37fe1d72f7c0ec82632378.exe
"C:\Users\Admin\AppData\Local\Temp\fb326ae60a37fe1d72f7c0ec82632378.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1004
  2⤵
  - Program crash
  PID:2832

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

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

Filesize
1KB

MD5
6c1a469a4a14ae03a28ed65264ba18c8

SHA1
9dd4c87a23240acf1267d5f1b651a9ecb0da21a5

SHA256
0953b79fff754fdd76b4a428fcfab4752c8a1f765250aab629bebcfb5bd85509

SHA512
d9851dabe2be00e949a0ee246bce97a7c851ce6f0dc594fdbf34f2d602b92c553fa4aafab091e2be76c034d2afbddb4102908ae6be67f6c23014ce3fbe3321c5

Download Submit
\Users\Admin\AppData\Local\Temp\{082EE4A8-C83B-4da0-A962-F2AD9E5E80C2}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
\Users\Admin\AppData\Local\Temp\{40823870-0730-4d4e-A077-61BC72505D75}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
memory/2008-41-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads