Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d8f8ba485e20e4f…

MALICIOUS

PDF

41.2 KB Authoring application: QPDF
MD5: 1210063cb37bef7a83dfa22ca1c9b55f SHA-1: 3a51f9620d54c4af899d2eecffd52ebba2d6a403 SHA-256: 2d8f8ba485e20e4ffe43f3bf48336fd1d7e532c6779796785858c3b88cc67cfb
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links likely serve as a link farm to redirect users to malicious sites. The ML classifier and ClamAV detection strongly support the malicious nature of this file. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://smithscateringholbrook.com/uploads/1/3/0/6/130621324/e12689db3b.pdf
    • http://www.washingtonstatehealthadvocates.com/uploads/1/3/0/5/130539048/4747419899c.pdf
    • http://www.geeksfromthetrap.com/uploads/1/3/0/4/130435745/kuvoso-wuxenedareluf-lagulepitipi.pdf
    • http://psychsnack.com/uploads/1/3/0/6/130604369/7874593.pdf
    • http://privacyprerogative.com/uploads/1/3/0/7/130776104/6110732.pdf
    • http://kippeltoniemi.com/uploads/1/3/0/8/130874130/585cb7eb.pdf
    • http://relief-at-hand.com/uploads/1/3/0/5/130550895/mafixumelaru_goxajoxi_nigitemexuw.pdf
    • http://lindsayslittlecookingacademy.com/uploads/1/3/0/6/130604342/tezivuvazoxit_zekituritefime.pdf
    • http://kimberleecurtis.com/uploads/1/3/0/7/130739099/meboje.pdf
    • http://whiddenprinting.com/uploads/1/3/0/6/130604147/sovibilominif.pdf
    • http://tradingblockadvisors.com/uploads/1/3/0/5/130550775/7772823.pdf
    • http://ottawarealtypa.ca/uploads/1/3/0/5/130539516/refovarik.pdf
    • http://stackandkottke.com/uploads/1/3/0/8/130873848/47506.pdf
    • http://endopeques.org/uploads/1/3/0/7/130740573/sobofebokijesise.pdf
    • http://millenniumobile.com/uploads/1/3/0/6/130604541/dujimakamivikozokab.pdf
    • http://boldposters.com/uploads/1/3/0/7/130776582/xamexusi-fazigunotakoni.pdf
    • http://koenswinkels.net/uploads/1/3/0/7/130775284/bade2d4b44b83.pdf
    • http://bcattic.com/uploads/1/3/0/5/130539492/7147945.pdf
    • http://thestuff.org/uploads/1/3/0/6/130622095/0cd6a1190614814.pdf
    • http://warriorstrongadventures.com/uploads/1/3/0/7/130776603/81c24040.pdf
    • http://alexdanielski.com/uploads/1/3/0/4/130492038/c2e45f0b31d.pdf
    • http://chrislloydmusic.com/uploads/1/3/0/6/130604806/3ca5a1822877.pdf
    • http://muso101.com/uploads/1/3/0/2/130287536/89ffa.pdf
    • http://mitco-solutions.com/uploads/1/3/0/6/130621443/zugonudotegobuxuben.pdf
    • http://guestinromania.com/uploads/1/3/0/5/130588433/dinojelemug.pdf
    • http://ewywn.salon225.com/uploads/1/3/0/8/130874365/130874365.html#pdf+to+dwg+converter+2017+crack+free+download
    • http://warriorstrongadventures.com/uploa

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c16.bin
c7401e8fd0c14333e737bc1b7c58ac90629b3630575d90578e0f193f49a4c9b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x3C16 8104 bytes