MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5d46fa7215a9fbc068c2c7c49ec8156b45d6199cac87e9c08cda6647aa4517e. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: f5d46fa7215a9fbc068c2c7c49ec8156b45d6199cac87e9c08cda6647aa4517e
SHA3-384 hash: d340f6cc21cd508dd1ac80bc3e4ebe974562d2007ea817e7e6ecb92b2c793d7c2f974053d7adc87bc38f472791d34e62
SHA1 hash: bf152875df107a6529e8c81e753496775dcedcc0
MD5 hash: 90f4a814fbfb89fab340e578699e5c36
humanhash: pluto-oscar-washington-winner
File name:RFQ47692762531096734.PDF.exe
Download: download sample
Signature Formbook
File size:644'096 bytes
First seen:2020-08-11 13:53:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash df85ac537d57e3a7e2b1ddaa5fca9ad3 (3 x AgentTesla, 2 x Formbook, 2 x HawkEye)
ssdeep 12288:UV5mZ52HqKRoIYXSi8yrxEMPqdeenwvJ5LRGc+q:w8ZqbfksrcJ5FGQ
Threatray 4'960 similar samples on MalwareBazaar
TLSH 74D4BF32F5E14C37C123267C9D5B527CAB3A7E202B5928466BE85DCC9F393813D6A187
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: server1.swisspac.es
Sending IP: 119.18.63.233
From: Bhavik Nayee <purchase@tascoindustries.co.ug>
Subject: RFQ
Attachment: RFQ47692762531096734.PDF.z (contains "RFQ47692762531096734.PDF.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
Sending a UDP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
Contains functionality to detect sleep reduction / modifications
Detected FormBook malware
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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
Sigma detected: Suspicious Double Extension
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 261950 Sample: RFQ47692762531096734.PDF.exe Startdate: 11/08/2020 Architecture: WINDOWS Score: 100 44 www.hotelseybaplaya.com 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Yara detected FormBook 2->48 50 Sigma detected: Suspicious Double Extension 2->50 52 5 other signatures 2->52 11 RFQ47692762531096734.PDF.exe 2->11         started        signatures3 process4 signatures5 66 Detected unpacking (changes PE section rights) 11->66 68 Maps a DLL or memory area into another process 11->68 70 Tries to detect virtualization through RDTSC time measurements 11->70 72 Contains functionality to detect sleep reduction / modifications 11->72 14 RFQ47692762531096734.PDF.exe 11->14         started        process6 signatures7 74 Modifies the context of a thread in another process (thread injection) 14->74 76 Maps a DLL or memory area into another process 14->76 78 Sample uses process hollowing technique 14->78 80 Queues an APC in another process (thread injection) 14->80 17 explorer.exe 6 14->17 injected process8 dnsIp9 38 maisondeyul.net 112.175.31.180, 49738, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 17->38 40 www.wunuecz.com 17->40 42 2 other IPs or domains 17->42 32 C:\Users\user\AppData\...\certmgrvdttftb.exe, PE32 17->32 dropped 54 System process connects to network (likely due to code injection or exploit) 17->54 56 Benign windows process drops PE files 17->56 22 colorcpl.exe 1 17 17->22         started        26 certmgrvdttftb.exe 17->26         started        file10 signatures11 process12 file13 34 C:\Users\user\AppData\...\879logrv.ini, data 22->34 dropped 36 C:\Users\user\AppData\...\879logri.ini, data 22->36 dropped 58 Detected FormBook malware 22->58 60 Tries to steal Mail credentials (via file access) 22->60 62 Tries to harvest and steal browser information (history, passwords, etc) 22->62 64 3 other signatures 22->64 28 cmd.exe 1 22->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Backdoor.Androm
Status:
Malicious
First seen:
2020-08-11 13:55:06 UTC
AV detection:
25 of 48 (52.08%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat persistence trojan spyware stealer family:formbook evasion
Behaviour
Enumerates system info in registry
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
Adds Run key to start application
Checks whether UAC is enabled
Deletes itself
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.porcber.com/cfo/
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 f5d46fa7215a9fbc068c2c7c49ec8156b45d6199cac87e9c08cda6647aa4517e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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