5539897cb4fad82316a3053abe70ca1ec47e55d6f5a0c741d7e513e8dffeb57c

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 03:56

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General

Target

e7fd882038bd488e4efd7b8caaa49bcc.exe
Size

41.9MB
MD5

e7fd882038bd488e4efd7b8caaa49bcc
SHA1

f30f6c5daf7cf4fa260496702016e8648cac913a
SHA256

5539897cb4fad82316a3053abe70ca1ec47e55d6f5a0c741d7e513e8dffeb57c
SHA512

01f2c8a3eaa9aa118aacfd549c5d66d950825c6fc49629b1bf8b3cabdb347662a1459e64c775d2d36c19bc529dc657a35062d9f624c6d3a432e09fa682ad3266
SSDEEP

786432:9wYnIe84d7m8/Mw5CaXv2S3IPlv5OqlICX1atGLJcez+yzqFqikJaaZRTdn:9wYn7dX/uyv28Id5PlIQk0qeyOq8DrRt

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2224	e7fd882038bd488e4efd7b8caaa49bcc.exe
2224	e7fd882038bd488e4efd7b8caaa49bcc.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	e7fd882038bd488e4efd7b8caaa49bcc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{255B2277-D683-4d1c-B63F-28B66091F9AC}.tf	e7fd882038bd488e4efd7b8caaa49bcc.exe
File created	C:\Program Files (x86)\LuDaShi\{AAD4028D-6297-4c89-B3D3-145FB3970DFA}.tmp\{BCB8DBD7-2603-4c25-A9F0-A1118E18E760}.tf	e7fd882038bd488e4efd7b8caaa49bcc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2672	2224	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2672	2224	e7fd882038bd488e4efd7b8caaa49bcc.exe	28
PID 2224 wrote to memory of 2672	2224	e7fd882038bd488e4efd7b8caaa49bcc.exe	28
PID 2224 wrote to memory of 2672	2224	e7fd882038bd488e4efd7b8caaa49bcc.exe	28
PID 2224 wrote to memory of 2672	2224	e7fd882038bd488e4efd7b8caaa49bcc.exe	28

C:\Users\Admin\AppData\Local\Temp\e7fd882038bd488e4efd7b8caaa49bcc.exe
"C:\Users\Admin\AppData\Local\Temp\e7fd882038bd488e4efd7b8caaa49bcc.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 1068
  2⤵
  - Program crash
  PID:2672

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\{093A2F60-1863-4668-9427-C51ABE0924FE}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{C5E5AA0E-6A53-4691-84F5-6A79B78D0BAF}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2224-40-0x00000000002F0000-0x00000000007E4000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads