MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b013f7d0015d773fb1bd83c18bfd34180dbc1e10beb848fd699420f9f7278ca. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: 8b013f7d0015d773fb1bd83c18bfd34180dbc1e10beb848fd699420f9f7278ca
SHA3-384 hash: e08be332830574d780389ece02ee79b4fb63a875c361ed28378a18158f8c6182bdce95e0cce872d9dabf33818dcb8069
SHA1 hash: 4ee407b24bd917ba8c3ff3e3af42b9291dc48451
MD5 hash: af14656fa99bb12bbfc5d35f43e3dfe6
humanhash: lima-delaware-mockingbird-high
File name:regasm.exe
Download: download sample
Signature FormBook
File size:820'224 bytes
First seen:2020-08-17 08:17:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 90971096b3f3ef49ea4900e0dc05049a (10 x FormBook, 9 x AgentTesla, 4 x Loki)
ssdeep 12288:9gftlTxIDJRRtYRNeuawx2+8zVQLlcqPTxUHYY3UmNUSiMBGLV6jL/677BbaErR:9g1JxIwP5YxaZ0dD6SyxY/4Bba
Threatray 2'246 similar samples on MalwareBazaar
TLSH FC059D32B1E04837D173DA3C5D1B6377982ABE132B289B466BEC7C485F39A5136252C7
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: mail.bpddiy.co.id
Sending IP: 103.23.175.8
From: Divisi Manajemen Risiko dan Kepatuhan <mr@bpddiy.co.id>
Subject: Purchase Order
Attachment: Orders.zip (contains "regasm.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
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:
96 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Machine Learning detection for sample
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)
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: 268742 Sample: regasm.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 96 33 www.twyitong.com 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Yara detected FormBook 2->37 39 Machine Learning detection for sample 2->39 41 Modifies the prolog of user mode functions (user mode inline hooks) 2->41 11 regasm.exe 2->11         started        signatures3 process4 signatures5 49 Detected unpacking (changes PE section rights) 11->49 51 Maps a DLL or memory area into another process 11->51 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Contains functionality to detect sleep reduction / modifications 11->55 14 regasm.exe 11->14         started        process6 signatures7 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 explorer.exe 14->17 injected process8 dnsIp9 27 www.nct16.com 17->27 29 www.manx020.com 17->29 31 www.campingdude.store 17->31 20 WWAHost.exe 17->20         started        process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Threat name:
Win32.Infostealer.Fareit
Status:
Malicious
First seen:
2020-08-17 02:35:53 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.ranges-xx.com/fju2/
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.

Malspam

FormBook

Executable exe 8b013f7d0015d773fb1bd83c18bfd34180dbc1e10beb848fd699420f9f7278ca

(this sample)

  
Delivery method
Distributed via e-mail attachment

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