MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8df5858f489a1dd9f113eda4dbe0aded3fd5a128dd32e991e94c5a2b7623ba64. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



FormBook


Vendor detections: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: 8df5858f489a1dd9f113eda4dbe0aded3fd5a128dd32e991e94c5a2b7623ba64
SHA3-384 hash: d9cb5bb59c4ece54a9bd8ba52e93097d2555dc762a7843474d7d3947d08c52a4bc48fac22d9e00da9c25d53d19141a2d
SHA1 hash: 6f9f76730eb11f6ef42fd6ad210f01c633069bc4
MD5 hash: 41fc354c5ad49ad6750c5cc5348cefcc
humanhash: indigo-spaghetti-white-hotel
File name:41fc354c5ad49ad6750c5cc5348cefcc.exe
Download: download sample
Signature FormBook
File size:345'851 bytes
First seen:2020-07-29 12:06:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c2c71dfce9a27650634dc8b1ca03bf0 (160 x Loki, 58 x Formbook, 55 x Adware.Generic)
ssdeep 6144:3PCganNInU6GyDFDRhxXpi2j+C4lvj/3uC3z1c88pR2TruNElCYrr9gr:NanCU61lRz5iM4Z3Vz15SOrYYr6r
Threatray 5'568 similar samples on MalwareBazaar
TLSH 0C7412183100D8E3DAE5867018759D3FDBA8AE7C171F078787947E88F9B74069D1F662
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Contain functionality to detect virtual machines
Hijacks the control flow in another process
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253631 Sample: bDdrpjN7Vp.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 92 38 g.msn.com 2->38 40 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->40 54 Malicious sample detected (through community Yara rule) 2->54 56 Yara detected FormBook 2->56 58 Modifies the prolog of user mode functions (user mode inline hooks) 2->58 12 bDdrpjN7Vp.exe 22 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\MicrosoftVsaVb.dll, PE32 12->32 dropped 34 C:\Users\user\AppData\...\CMAccept.exe, PE32 12->34 dropped 36 C:\Users\user\AppData\Local\...\Renovator.dll, PE32 12->36 dropped 74 Contain functionality to detect virtual machines 12->74 16 rundll32.exe 12->16         started        signatures6 process7 signatures8 48 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 16->48 50 Hijacks the control flow in another process 16->50 52 Maps a DLL or memory area into another process 16->52 19 cmd.exe 16->19         started        process9 signatures10 60 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 19->60 62 Modifies the context of a thread in another process (thread injection) 19->62 64 Maps a DLL or memory area into another process 19->64 66 3 other signatures 19->66 22 explorer.exe 19->22 injected process11 dnsIp12 42 www.romanipaints.com 22->42 44 www.megaworldmc.com 22->44 46 www.3x3alliance.com 22->46 25 cmmon32.exe 22->25         started        process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 25->68 70 Maps a DLL or memory area into another process 25->70 72 Tries to detect virtualization through RDTSC time measurements 25->72 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.BypassUac
Status:
Malicious
First seen:
2020-07-28 02:28:50 UTC
AV detection:
34 of 48 (70.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
NSIS installer
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

FormBook

Executable exe 8df5858f489a1dd9f113eda4dbe0aded3fd5a128dd32e991e94c5a2b7623ba64

(this sample)

  
Delivery method
Distributed via web download

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