00b5c0051cd1fcdd7b5aaba21d95aa282c00f26019a89cdd6cb2e65dee5fd8a4

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 01:56

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General

Target

59dcb76a3a709c922dee44599804fea7.exe
Size

43.5MB
MD5

59dcb76a3a709c922dee44599804fea7
SHA1

973aff7f4e3c61cd6d97a0a68376c669569edd54
SHA256

00b5c0051cd1fcdd7b5aaba21d95aa282c00f26019a89cdd6cb2e65dee5fd8a4
SHA512

dde390724de673c5a3bcaf8fd57a55d675d66216fe91c4914737d662d3d1f8f965709d050b03ccfda0df195c708bf248fed6e853de34dd05ce8dc1f8425e4b68
SSDEEP

786432:9wYnIe84d7m8/Mw5CaXv2S3IPlv5OqlICX1atGLJcez+yzqFqikJaaZRTdcH+wEu:9wYn7dX/uyv28Id5PlIQk0qeyOq8DrRC

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

59dcb76a3a709c922dee44599804fea7.exe

pid process

2956 59dcb76a3a709c922dee44599804fea7.exe
2956 59dcb76a3a709c922dee44599804fea7.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:

59dcb76a3a709c922dee44599804fea7.exe

description ioc process

File opened for modification \??\PhysicalDrive0 59dcb76a3a709c922dee44599804fea7.exe

pid	process
2956	59dcb76a3a709c922dee44599804fea7.exe
2956	59dcb76a3a709c922dee44599804fea7.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	59dcb76a3a709c922dee44599804fea7.exe

Drops file in Program Files directory 2 IoCs

Processes:

59dcb76a3a709c922dee44599804fea7.exe

description	ioc	process
File created	C:\Program Files (x86)\LuDaShi\{5348A74A-BCB5-4a65-9A48-BF86709A6588}.tf	59dcb76a3a709c922dee44599804fea7.exe
File created	C:\Program Files (x86)\LuDaShi\{948AF6B8-911E-48fc-8E63-81342796C67E}.tmp\{843491AB-87E6-4890-A942-F8BFEFB13425}.tf	59dcb76a3a709c922dee44599804fea7.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2652 2956 WerFault.exe 59dcb76a3a709c922dee44599804fea7.exe

pid	pid_target	process	target process
2652	2956	WerFault.exe	59dcb76a3a709c922dee44599804fea7.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

59dcb76a3a709c922dee44599804fea7.exe

description	pid	process	target process
PID 2956 wrote to memory of 2652	2956	59dcb76a3a709c922dee44599804fea7.exe	WerFault.exe
PID 2956 wrote to memory of 2652	2956	59dcb76a3a709c922dee44599804fea7.exe	WerFault.exe
PID 2956 wrote to memory of 2652	2956	59dcb76a3a709c922dee44599804fea7.exe	WerFault.exe
PID 2956 wrote to memory of 2652	2956	59dcb76a3a709c922dee44599804fea7.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\59dcb76a3a709c922dee44599804fea7.exe
"C:\Users\Admin\AppData\Local\Temp\59dcb76a3a709c922dee44599804fea7.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 1036
2⤵
- Program crash
PID:2652

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
af7a6876e4b18aa6a2e11a6074e8c245

SHA1
e400072a017e611a382abcbd8330683083f8577b

SHA256
9f66bc542e1af5ac6334746b8d2f87949a6bac194f1ce14f1e5f721c028a8fc9

SHA512
63e3c94fc5389127800269975bf63e92cf473a8871d8de0d9f116c4b3d25fe40ee7fc3e2a194c7355fe63b031ef0ee923952993bf4cd81c4242330440df19295

Download Submit
\Users\Admin\AppData\Local\Temp\{1C381701-168D-452c-8765-9B7F00534178}.tmp\NetBridge.dll
Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{CFD72157-AC8A-436d-AA51-2B9E05A77A31}.tmp\7z.dll
Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2956-40-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download