7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835

Analysis

max time kernel
79s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 23:55

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General

Target

7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe
Size

4.8MB
MD5

a1ccae1dbd83828dba4252af8e8a5763
SHA1

c9fb0370f3546965694a3cd8c34d6bbaa4a1ac1c
SHA256

7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835
SHA512

2df58253115a2a6abad98222510d7b7af198210c6c3441c529b46c793000dadfa48891c375f49708f36a0757e28fe3e11c7d0f7efd1235fb69bf8168bfb26d49
SSDEEP

98304:cVeM4VwHuokyfK8PGcx2HynIiprw0F80XZeGg:6AVw6kx2SnIe84eGg

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe
2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.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	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{562B88B8-BC67-49da-B1A7-B340AF6E7C7A}.tf	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe
File created	C:\Program Files (x86)\LuDaShi\{D17D2532-D88E-4b3b-9128-0D302936FFD3}.tmp\{E2D4C7E1-AB69-4a44-81E5-900BBBDC8D6C}.tf	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2784	2264	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	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2784	2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe	30
PID 2264 wrote to memory of 2784	2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe	30
PID 2264 wrote to memory of 2784	2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe	30
PID 2264 wrote to memory of 2784	2264	7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe	30

C:\Users\Admin\AppData\Local\Temp\7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe
"C:\Users\Admin\AppData\Local\Temp\7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.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:2264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 952
  2⤵
  - Program crash
  PID:2784

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
c4407377ac8714a8dc7a564330a65ee6

SHA1
884dbdd61b4b40e8e0bedfe46759e6dfd2998930

SHA256
22e2ac1fcc420e89ab5f7eb73bd1c5ff5fa152101e053256e18b74c3e70adfba

SHA512
b7e5668441b91f336d4790ac469f05e58a56c01cc0f55f2fab63bd34145cbe03998271c3a42f9b92bfe9abac146f87ea3feb8611edf7f38754606e4d103173d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\{4EC01349-8AED-49ed-949A-5DCD51F8B66A}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{4F6E9BE4-B321-4cff-B9DF-C42F69970EBC}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2264-39-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads