f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f

Analysis

max time kernel
74s
max time network
189s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 17:15

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General

Target

f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
Size

15.0MB
MD5

dc4d3bcba312f396dd23b32a0494e0f9
SHA1

e4018ece281df6f54622edbdaad479ede6872da9
SHA256

f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f
SHA512

a40ad971a00738653f29b7b59fae872bb3685e36dcecae2f22b7e5ca2370ea737a06464d889026c94ad62fb4274f1d7051d2bdbc13578e977d0e84d170ec1e44
SSDEEP

393216:vBEAdhXbKYbiJ4WZ6/+o/dcg8xEm4KHKHCI:OAbhbgno/+oN8xEmt+CI

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.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	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{FDA580BA-7340-4058-B1C6-CD231D777A9F}.tf	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
File created	C:\Program Files (x86)\LuDaShi\{B05C7D8A-8721-4456-BE9A-3660946B4B8B}.tmp\{BBF792ED-F390-48b8-93EC-BEB19EA6E0E6}.tf	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1328	2776	WerFault.exe	11

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 1328	2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe	29
PID 2776 wrote to memory of 1328	2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe	29
PID 2776 wrote to memory of 1328	2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe	29
PID 2776 wrote to memory of 1328	2776	f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe	29

C:\Users\Admin\AppData\Local\Temp\f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
"C:\Users\Admin\AppData\Local\Temp\f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 928
  2⤵
  - Program crash
  PID:1328

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

C:\Users\Admin\AppData\Local\Temp\{2FDFA1C4-A9EF-48c0-A476-594618053F8A}.tmp\NetBridge.dll

Filesize
238KB

MD5
8786d469338c30e0ba9fedfc62bd5197

SHA1
5fb12028ceae9772f938e1b98b699f0e02e32718

SHA256
beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f

SHA512
5db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c

Download Submit
\Users\Admin\AppData\Local\Temp\{2FDFA1C4-A9EF-48c0-A476-594618053F8A}.tmp\NetBridge.dll

Filesize
238KB

MD5
8786d469338c30e0ba9fedfc62bd5197

SHA1
5fb12028ceae9772f938e1b98b699f0e02e32718

SHA256
beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f

SHA512
5db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c

Download Submit
\Users\Admin\AppData\Local\Temp\{DBB5B7CD-86DD-47d6-A110-3D2F42CB4BE1}.tmp\7z.dll

Filesize
1.1MB

MD5
2706693dda10c6cc79eed24c56d4e5ef

SHA1
4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

SHA256
0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

SHA512
7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

Download Submit
memory/2776-27-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads