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Analysis
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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
Static task
static1
Behavioral task
behavioral1
Sample
f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
Resource
win10v2004-20230915-en
General
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Target
f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f.exe
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Size
15.0MB
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MD5
dc4d3bcba312f396dd23b32a0494e0f9
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SHA1
e4018ece281df6f54622edbdaad479ede6872da9
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SHA256
f133554fededc042fd9392c4271204bfb43bc8dba24fac417a289619364e2b7f
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SHA512
a40ad971a00738653f29b7b59fae872bb3685e36dcecae2f22b7e5ca2370ea737a06464d889026c94ad62fb4274f1d7051d2bdbc13578e977d0e84d170ec1e44
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SSDEEP
393216:vBEAdhXbKYbiJ4WZ6/+o/dcg8xEm4KHKHCI:OAbhbgno/+oN8xEmt+CI
Malware Config
Signatures
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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.
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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.
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
Processes
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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.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 9282⤵
- Program crash
PID:1328
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
238KB
MD58786d469338c30e0ba9fedfc62bd5197
SHA15fb12028ceae9772f938e1b98b699f0e02e32718
SHA256beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f
SHA5125db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c
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Filesize
238KB
MD58786d469338c30e0ba9fedfc62bd5197
SHA15fb12028ceae9772f938e1b98b699f0e02e32718
SHA256beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f
SHA5125db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c
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Filesize
1.1MB
MD52706693dda10c6cc79eed24c56d4e5ef
SHA14f34ef1bd49273a0d260b9dab15c73eb0ccb6383
SHA2560edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3
SHA5127e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c