0f2151ce583037b9072a039db984282f73be1e0205142af0f6b5cb3faed3628d

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 03:21

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General

Target

c6df32963b817f78a6d0ed89db03a368.exe
Size

29.6MB
MD5

c6df32963b817f78a6d0ed89db03a368
SHA1

77298101dd25f6cd81c31ddae2a20ea2febc44c5
SHA256

0f2151ce583037b9072a039db984282f73be1e0205142af0f6b5cb3faed3628d
SHA512

1a722980d08f7e4f964225c5ffc1ea79acfeb5c9a801ccc7e749f7c2483976a9c70fcf54f8e2c8a2d12348f2042a5bbac836c3564cbbb007d43dd3b6064e4564
SSDEEP

786432:9wYnIe84d7m8/Mw5CaXv2S3IPlv5OqlICX1atGLJx:9wYn7dX/uyv28Id5PlIQk0f

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

c6df32963b817f78a6d0ed89db03a368.exe

pid process

3000 c6df32963b817f78a6d0ed89db03a368.exe
3000 c6df32963b817f78a6d0ed89db03a368.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

Processes:

c6df32963b817f78a6d0ed89db03a368.exe

description ioc process

File opened for modification \??\PhysicalDrive0 c6df32963b817f78a6d0ed89db03a368.exe

pid	process
3000	c6df32963b817f78a6d0ed89db03a368.exe
3000	c6df32963b817f78a6d0ed89db03a368.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	c6df32963b817f78a6d0ed89db03a368.exe

Drops file in Program Files directory 2 IoCs

Processes:

c6df32963b817f78a6d0ed89db03a368.exe

description	ioc	process
File created	C:\Program Files (x86)\LuDaShi\{BD53E416-5ABA-4f84-BF34-7E8D5597B71B}.tf	c6df32963b817f78a6d0ed89db03a368.exe
File created	C:\Program Files (x86)\LuDaShi\{2633C906-70C9-4261-B0FC-D176033F620E}.tmp\{D6A6F8FA-C03E-47d9-AA95-53CBCABBCB3F}.tf	c6df32963b817f78a6d0ed89db03a368.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2536 3000 WerFault.exe c6df32963b817f78a6d0ed89db03a368.exe

pid	pid_target	process	target process
2536	3000	WerFault.exe	c6df32963b817f78a6d0ed89db03a368.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c6df32963b817f78a6d0ed89db03a368.exe

description	pid	process	target process
PID 3000 wrote to memory of 2536	3000	c6df32963b817f78a6d0ed89db03a368.exe	WerFault.exe
PID 3000 wrote to memory of 2536	3000	c6df32963b817f78a6d0ed89db03a368.exe	WerFault.exe
PID 3000 wrote to memory of 2536	3000	c6df32963b817f78a6d0ed89db03a368.exe	WerFault.exe
PID 3000 wrote to memory of 2536	3000	c6df32963b817f78a6d0ed89db03a368.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\c6df32963b817f78a6d0ed89db03a368.exe
"C:\Users\Admin\AppData\Local\Temp\c6df32963b817f78a6d0ed89db03a368.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 1028
2⤵
- Program crash
PID:2536

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\{4BF5312B-5C1E-4308-B997-D8BD519BAD92}.tmp\NetBridge.dll
Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{DF9CDCEF-31D3-4c62-8DFF-03C20F60324A}.tmp\7z.dll
Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/3000-40-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download