7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 08:55

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General

Target

7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe
Size

4.8MB
MD5

2909d3defa8e4203b197e6727759b237
SHA1

b7ca8fdab4145d1bb5e8ec109bf3d49e952102e7
SHA256

7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b
SHA512

7b1aa18e94bc9e033fb267b6e297f1f7d450a29bb0c65f08008fec331eefb780076dff9922d8a391d5f5c43e4dbb657622d323b0a609dc0e72d66d790e51f6e3
SSDEEP

98304:uVeM4VwHuokyfn8PGcx2HynIiprw0F80XZsB3l:cAVw3kx2SnIe84E3l

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe
2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.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	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{05CF6052-B713-4e5e-96D4-E728076AADC8}.tf	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe
File created	C:\Program Files (x86)\LuDaShi\{FB3A1733-C66F-4fb5-BCE3-F4703535FCAB}.tmp\{A7ACD55B-2406-4b26-B053-C0EEBE3AE872}.tf	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2588	2408	WerFault.exe	27

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	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2588	2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe	28
PID 2408 wrote to memory of 2588	2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe	28
PID 2408 wrote to memory of 2588	2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe	28
PID 2408 wrote to memory of 2588	2408	7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe	28

C:\Users\Admin\AppData\Local\Temp\7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.exe
"C:\Users\Admin\AppData\Local\Temp\7cccfc7545e25977f0479c8d5859a3a647954afd94b67cf97191c10e086b9d7b.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:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 876
  2⤵
  - Program crash
  PID:2588

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
8e1b8f58718644e53d162281fe974dda

SHA1
38cbf693b0f66d3ad04ca330b7998395fe89caf7

SHA256
4bb8b4f8419c0b53cf5e307f2198ca6caa92c0cb07fac5f2b7bc7ff25994c426

SHA512
b476419f490262deb41b1209485779511ce076188a9cc3b24b08a1e5716e18659ae1b859ecbfdeb824cc80925d0e373257ec1673ca483304115d36d772469ae3

Download Submit
C:\Users\Admin\AppData\Local\Temp\{F1F7F47B-8A09-451d-A911-BCC6026E2CC4}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{6EAEDF49-FBC5-471a-94BC-E34DC14FD6A7}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2408-39-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads