Malicious PDF — malware analysis report

Static analysis result for SHA-256 28f0a20f1b4c1cb9…

MALICIOUS

PDF

39.7 KB Authoring application: SWFTools
MD5: 5f014216f7ebd76e6fd088cef0549fbe SHA-1: 37b638067138090b5a510c49d66cceddc286a229 SHA-256: 28f0a20f1b4c1cb9f108ccf61297736a818da6ddd79e1054062c6a5e9d841025
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body is heavily obfuscated and does not provide clear textual lures. No scripts were extracted from this sample.

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://professionalgardens.net/uploads/1/3/0/6/130620341/siduke.pdf
    • http://alloverbeauty.uk/uploads/1/3/0/2/130271121/c4e8752.pdf
    • http://mybathbuddy.com/uploads/1/3/0/4/130476101/jexumu_nosadobugegugus_bilenube_teketebe.pdf
    • http://binarybitteam.com/uploads/1/3/0/7/130740073/1437810.pdf
    • http://kempnermethodist.org/uploads/1/3/0/6/130621490/8397087.pdf
    • http://lovehouse.org/uploads/1/3/0/6/130604196/92a85.pdf
    • http://foundationalwellness.info/uploads/1/3/0/2/130289540/xetemenetuj_bukutapo_fegotosogavuxe_tirakaxojimeli.pdf
    • http://www.denniceyoga.com/uploads/1/3/0/4/130483266/rofaxiri_parod_panidufiweke_nawutafixewa.pdf
    • http://virtotour.com/uploads/1/3/0/7/130775451/700ed.pdf
    • http://acheevo.com/uploads/1/3/0/5/130543665/8310215.pdf
    • http://completehomecleaning.net/uploads/1/3/0/5/130588195/jexakatesovor_fivewiba.pdf
    • http://hostmaster.thesalonportals.com/uploads/1/3/0/6/130604805/1850656.pdf
    • http://adsl-69-150-183-22.comfortltc.com/uploads/1/3/0/7/130738911/be2e7dab2725a.pdf
    • http://octobercrickets.net/uploads/1/3/0/4/130436494/padebel.pdf
    • http://www.8change.org/uploads/1/3/0/2/130289495/87e65ae7e97a9.pdf
    • http://bigkatmanning.net/uploads/1/3/0/5/130540106/462e4.pdf
    • http://pokeylizardcreations.ca/uploads/1/3/0/5/130542813/sewugokixamo-bogaku-dufiradeziboz-suvonebedowuv.pdf
    • http://realdemocracyfund.com/uploads/1/3/0/6/130620704/6766193.pdf
    • http://tryhardkitchen.com/uploads/1/3/0/4/130483895/joxub-nuzutu-potevu.pdf
    • http://shipping2050now.com/uploads/1/3/0/4/130489080/4071078.pdf
    • http://suncatwatersports.com/uploads/1/3/0/7/130775744/5207525.pdf
    • http://braidingwheat.com/uploads/1/3/0/5/130551129/5236709.pdf
    • http://autodiscover.collegedemsatiu.com/uploads/1/3/0/3/130323517/130323517.html#bringing+cinnamon+to+europe+mini+ielts
    • http://foundationalwellness.info/uploads/1/3/0/2/130289540/xetemen

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a21.bin
1a3261b7294f61df09aba94b9d45f2ebd8ba8904f4382992d871202cd8c63141		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A21 7748 bytes

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