Malicious PDF — malware analysis report

Static analysis result for SHA-256 725557f5e5f5d099…

MALICIOUS

PDF

46.6 KB Authoring application: PDFBox
MD5: 4d4a360ca8989f1622f2c35e0780c31c SHA-1: 5ffb5e49e4abe193ba081f609892d8a91ee247c8 SHA-256: 725557f5e5f5d09947bb57acee7f38e3a80a6f0017cbbbd03f937692eed46cdc
232 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

This PDF document exhibits characteristics of a social engineering attack, specifically a 'ClickFix' lure, by instructing the user to interact with the clipboard and execute commands. The presence of a large number of external PDF links suggests an attempt to manipulate search engine rankings or distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.bakerassociatesinc.com/uploads/1/3/0/9/130969937/pofomipotesuxelu.pdf
    • http://thesocialbride.com/uploads/1/3/0/6/130604824/dogasuzojez.pdf
    • http://mail.coffeegraceoils.com/uploads/1/3/0/5/130551021/merek-molizadasebi-bedezeriti.pdf
    • http://slayedalteregos.com/uploads/1/3/0/2/130272512/zeloxaperalave.pdf
    • http://mymaxtax.com/uploads/1/3/0/6/130604030/liwigonerojiruna.pdf
    • http://onedirectiontickets.net/uploads/1/3/0/5/130551258/walenisejomowojojog.pdf
    • http://duraclub.ca/uploads/1/3/0/4/130478831/wemedemilap.pdf
    • http://www.memecuisine.net/uploads/1/3/0/4/130483236/genitofaxopo_wabire.pdf
    • http://littledreamers.net/uploads/1/3/0/2/130287808/letuzanur.pdf
    • http://rainbowrehabtherapy.com/uploads/1/3/0/4/130490808/retox.pdf
    • http://romanpublications.com/uploads/1/3/0/5/130543369/9431127.pdf
    • http://facebookbailbonds.com/uploads/1/3/0/5/130540402/6704140.pdf
    • http://www.figurati.net/uploads/1/3/0/6/130621076/788359.pdf
    • http://spdcpa.ca/uploads/1/3/0/5/130538985/godujaka.pdf
    • http://magicklymodern.shop/uploads/1/3/0/7/130775972/1586216.pdf
    • http://chrisusey.com/uploads/1/3/0/2/130271214/luvugubat_topelixis.pdf
    • http://ntoumei.com/uploads/1/3/0/7/130739697/dubiralomutekale.pdf
    • http://apoaaxi.org/uploads/1/3/0/6/130604616/vikojaxire_rodogeb_biwuxobafarib_ruwawef.pdf
    • http://www.ewa4ewa.us/uploads/1/3/0/7/130738753/fazafen.pdf
    • http://unwindutopia.com/uploads/1/3/0/8/130874600/5efb90bdd7c0361.pdf
    • http://runnersofthenish.com/uploads/1/3/0/8/130814065/4637535.pdf
    • http://0ws5k.bpmtc.com/uploads/1/3/0/6/130639757/130639757.html#microsoft+natural+ergonomic+keyboard+4000+linux+driver
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004188.bin
5544c304f5a0508a1661af838f81e4f83dc52b0d132898ac48f081f550cf61f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x4188 4236 bytes
font_01_sfnt_off000051f7.bin
ad64a1393a323e321cb3268243e9647fc37e1be1b872940c256a6e683808374d
pdf-font-stream PDF embedded font (sfnt) at offset 0x51F7 9380 bytes