57a788eedfe9a73a558cf292f9e4702287245168f0f0e5d217120bf17fcf830c

Analysis

max time kernel
118s
max time network
125s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 03:35

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General

Target

d106b840ab48dd55ade2dd9b56c388a9.exe
Size

43.5MB
MD5

d106b840ab48dd55ade2dd9b56c388a9
SHA1

833e2514f28b164b73ca3739c93b565e5eb537ce
SHA256

57a788eedfe9a73a558cf292f9e4702287245168f0f0e5d217120bf17fcf830c
SHA512

7ba36dbb49a32f732b68826434fc8cc87278e558874941db0efb17b1a30d44a11d5ee167c544293f748076648d59602e85f02344959aafac40c46f42d5c67b0f
SSDEEP

786432:9wYnIe84d7m8/Mw5CaXv2S3IPlv5OqlICX1atGLJcez+yzqFqikJaaZRTdcH+wE8:9wYn7dX/uyv28Id5PlIQk0qeyOq8DrR4

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

d106b840ab48dd55ade2dd9b56c388a9.exe

pid process

316 d106b840ab48dd55ade2dd9b56c388a9.exe
316 d106b840ab48dd55ade2dd9b56c388a9.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:

d106b840ab48dd55ade2dd9b56c388a9.exe

description ioc process

File opened for modification \??\PhysicalDrive0 d106b840ab48dd55ade2dd9b56c388a9.exe

pid	process
316	d106b840ab48dd55ade2dd9b56c388a9.exe
316	d106b840ab48dd55ade2dd9b56c388a9.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	d106b840ab48dd55ade2dd9b56c388a9.exe

Drops file in Program Files directory 2 IoCs

Processes:

d106b840ab48dd55ade2dd9b56c388a9.exe

description	ioc	process
File created	C:\Program Files (x86)\LuDaShi\{B2D768E1-F5F8-46c6-A1BC-931D2CFD34FB}.tf	d106b840ab48dd55ade2dd9b56c388a9.exe
File created	C:\Program Files (x86)\LuDaShi\{448A9280-27E8-4306-8955-7538E193ACB8}.tmp\{F7D2AE10-4EB5-4d8c-A7BE-1A520618EE00}.tf	d106b840ab48dd55ade2dd9b56c388a9.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2624 316 WerFault.exe d106b840ab48dd55ade2dd9b56c388a9.exe

pid	pid_target	process	target process
2624	316	WerFault.exe	d106b840ab48dd55ade2dd9b56c388a9.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

d106b840ab48dd55ade2dd9b56c388a9.exe

description	pid	process	target process
PID 316 wrote to memory of 2624	316	d106b840ab48dd55ade2dd9b56c388a9.exe	WerFault.exe
PID 316 wrote to memory of 2624	316	d106b840ab48dd55ade2dd9b56c388a9.exe	WerFault.exe
PID 316 wrote to memory of 2624	316	d106b840ab48dd55ade2dd9b56c388a9.exe	WerFault.exe
PID 316 wrote to memory of 2624	316	d106b840ab48dd55ade2dd9b56c388a9.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\d106b840ab48dd55ade2dd9b56c388a9.exe
"C:\Users\Admin\AppData\Local\Temp\d106b840ab48dd55ade2dd9b56c388a9.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 988
2⤵
- Program crash
PID:2624

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

C:\Users\Admin\AppData\Local\Temp\lds_setup.log
Filesize
1014B

MD5
0fab1c49fa4989f706cc6c676c2bfe18

SHA1
7eb011145192c77631bf2ba4e4a460371e9ee8a8

SHA256
bde76cbba64d47bb6c4cf18351690986c47035f24a86e02e17209d8dcdb3a23d

SHA512
6d90980f320c1637f4cb18192fbcb1c49ebf30f794b8b0a2797ed33f08b638ff7dbd9c8b130726a4d83fd95626cbdd5a9e34319304783f74184aeeb77732c185

Download Submit
C:\Users\Admin\AppData\Local\Temp\{5770F3C4-58B0-48ff-88FC-685CE7D1CD09}.tmp\NetBridge.dll
Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{75F0A7DE-BC6D-420d-B0F9-C5192BD2417C}.tmp\7z.dll
Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/316-40-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download