MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0d59116557f0c4cf0f52239edbc0a9569489279bbe45a690597d9dd8a2401886. 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: 0d59116557f0c4cf0f52239edbc0a9569489279bbe45a690597d9dd8a2401886
SHA3-384 hash: 029da5dfd661b16da52dd31018ffdcfeb93d65a5a7b4adaeef5b485c7d8792aa2b3afb91a1dde7fde4bd3de23e018a29
SHA1 hash: e89fabccae16dfd7bd881c4841a8bf4327a83b1c
MD5 hash: 0aefe97bc15bbf575e8e0b2be4d83dd3
humanhash: mirror-alpha-juliet-butter
File name:August First Purchase Order.pdf.exe
Download: download sample
Signature FormBook
File size:750'592 bytes
First seen:2020-08-04 07:01:29 UTC
Last seen:2020-08-04 08:20:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:95HcPgYxmOE+2Do4pPeRH89frqbXc+sKDryi0uEiUtfIBDgDDV:4IYxPeVZlgJsGORLNtqDYV
Threatray 5'134 similar samples on MalwareBazaar
TLSH 8FF4AEC6E5408E50DC294A3F8D3389924B33AC6BEF425606349CFA556BF31966E35F83
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: server1.swisspac.es
Sending IP: 119.18.63.233
From: MARINA KNEZEVIC <marina.knezevic@exitltd.co.rs>
Subject: Urgent Purchase Order
Attachment: August First Purchase Order.pdf.arj (contains "August First Purchase Order.pdf.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Creates an undocumented autostart registry key
Detected FormBook malware
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 sandboxes and other dynamic analysis tools (process name or module or function)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256606 Sample: August First Purchase Order... Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Yara detected AntiVM_3 2->53 55 Yara detected FormBook 2->55 57 7 other signatures 2->57 9 August First Purchase Order.pdf.exe 1 2->9         started        process3 file4 33 August First Purchase Order.pdf.exe.log, ASCII 9->33 dropped 59 Injects a PE file into a foreign processes 9->59 13 August First Purchase Order.pdf.exe 9->13         started        signatures5 process6 signatures7 61 Modifies the context of a thread in another process (thread injection) 13->61 63 Maps a DLL or memory area into another process 13->63 65 Sample uses process hollowing technique 13->65 67 Queues an APC in another process (thread injection) 13->67 16 systray.exe 1 17 13->16         started        20 explorer.exe 13->20 injected process8 dnsIp9 29 C:\Users\user\AppData\...\0-0logrv.ini, data 16->29 dropped 31 C:\Users\user\AppData\...\0-0logri.ini, data 16->31 dropped 41 Detected FormBook malware 16->41 43 Creates an undocumented autostart registry key 16->43 45 Tries to steal Mail credentials (via file access) 16->45 49 4 other signatures 16->49 23 cmd.exe 1 16->23         started        35 www.porcber.com 63.250.39.243, 49739, 80 NAMECHEAP-NETUS United States 20->35 37 www.nocrunchesrequired.com 20->37 39 www.mayitoujiao.com 20->39 47 System process connects to network (likely due to code injection or exploit) 20->47 25 autochk.exe 20->25         started        file10 signatures11 process12 process13 27 conhost.exe 23->27         started       
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-04 07:03:20 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
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 0d59116557f0c4cf0f52239edbc0a9569489279bbe45a690597d9dd8a2401886

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments