9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 15:24

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General

Target

9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe
Size

4.8MB
MD5

d51273927082463ce95383fbfb9f7683
SHA1

a3ec21cbd2b14f77b2229036f8c6b428f1f1f8e4
SHA256

9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1
SHA512

2c49d2db5a61c6b4c1b32757716cdd9f6a13ba6f73d60f6845df7e9ea0bcac88e63a589600cec08e683ae9fd58ef5dac9ad83d19132cdcc8b9cc63a0ac7c41f1
SSDEEP

98304:uVeM4VwHuokyfn8PGcx2HynIiprw0F80XZsB3B:cAVw3kx2SnIe84E3B

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe
2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.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	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{A6512FFE-0124-4d94-8201-6F09A03A9C1B}.tmp\{8AA175BB-C527-43f7-B9A5-47FAC747E19D}.tf	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe
File created	C:\Program Files (x86)\LuDaShi\{44587C25-C19F-45e1-AC72-AB92A8D29157}.tf	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2620	2656	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	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2620	2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe	30
PID 2656 wrote to memory of 2620	2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe	30
PID 2656 wrote to memory of 2620	2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe	30
PID 2656 wrote to memory of 2620	2656	9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe	30

C:\Users\Admin\AppData\Local\Temp\9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.exe
"C:\Users\Admin\AppData\Local\Temp\9cd87e602fa8b546798b1c7fe75388935fb99d350cf4fb626d7216fc6465c6d1.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:2656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 776
  2⤵
  - Program crash
  PID:2620

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
f78c6b467c586295f5623658cb123a8a

SHA1
505ec9ca9237ca6c3c9351c04ac7b7cd05554cf2

SHA256
6f98cdc88e449a3e33ef9a6542d280ed02d7c48771802297e91951ec731f9789

SHA512
9544cca56ba012417c73b75ef9ba4484ff6137d61f71cf36c3d01586633ce67cf397f6c69390ec1149047ed0c9be2823f1bc33beea5a595e6382c573a2d0717d

Download Submit
C:\Users\Admin\AppData\Local\Temp\{B2D0E079-1CBB-498b-BE47-821464432599}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{A029B7A8-57DC-40c4-BF6D-BB29E1640858}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2656-39-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads