Malicious PDF — malware analysis report

Static analysis result for SHA-256 afec177d20cc6b87…

MALICIOUS

PDF

44.7 KB Authoring application: Adobe PDF Library 9.0
MD5: 404f7ab960f50bbe9c2108cfe1f838c7 SHA-1: f8e7c315264d655fbec1026bd2c8739c431cbd8f SHA-256: afec177d20cc6b87659f8695ed50c1004ba9382a7925e105ca7ca170f0ffea86
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, directing users to various websites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports its malicious nature. The embedded document body text, though corrupted, suggests a lure related to math competition problems, likely to disguise the malicious intent of redirecting users to potentially harmful content.

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 https://xegawokanitej.weebly.com/uploads/1/3/0/5/130551237/402120.pdf
    • http://technowall.online/uploads/2020/01/28/521228.pdf
    • https://rozusibumelu.weebly.com/uploads/1/3/0/5/130550983/bemamanolotesa_wasegajikajevox_gokuvama_fatitegurex.pdf
    • http://til.wise-design.ru/uploads/2020/01/28/japekosanijanov-wogijilawomuned-duwig-modonedu.pdf
    • http://villageartproject.com/uploads/1/3/0/5/130544954/lorebasano.pdf
    • http://lovelyberryz.com/uploads/1/3/0/2/130289262/8385239.pdf
    • http://narug.arshin.online/uploads/2020/01/28/6bd46d7.pdf
    • http://15saintandrews.com/uploads/1/3/0/4/130478295/17872a0ab.pdf
    • http://melexo.oklkab.ru/uploads/2020/01/28/52e5b.pdf
    • http://memeg.ogo.best/uploads/2020/01/28/bibolareru.pdf
    • http://beastofblendz.com/uploads/1/3/0/3/130379711/01b92ff28c47ada.pdf
    • http://lokamad.dezinsektorrf.ru/uploads/2020/01/29/1e5afa2fd.pdf
    • http://kodu.mega-blog7.ru/uploads/2020/01/27/toxizebakapor.pdf
    • https://jijaderufis.weebly.com/uploads/1/3/0/5/130539125/232194d7.pdf
    • http://apexfrontier.com/uploads/1/3/0/4/130488195/pudite-jobugu-xanodimeselas-zuvopilika.pdf
    • https://rodimebeveluki.weebly.com/uploads/1/3/0/3/130379475/00210.pdf
    • http://prazskykrysarik.ru/uploads/2020/01/27/9307194.pdf
    • http://muwilupivo.oprosi1.icu/uploads/2020/01/28/fonosugam.pdf
    • http://ruroxed.iholpworld.com/uploads/2020/01/27/leweve-gepigipadu-tatozoluxotipi.pdf
    • http://massiv-stairs.ru/uploads/2020/01/27/911b4.pdf
    • http://pimubitupe.party.su/uploads/2020/01/28/xuluzelaw-tivilapin-noresikimuratuv.pdf
    • http://vsetoplivo.ru/uploads/2020/01/27/ladedidanav_wodikaluko_woxalunaleda_bojiwaxa.pdf
    • https://nositexilodupaj.weebly.com/uploads/1/3/0/6/130604583/bb85565.pdf
    • http://vefe.atikpastanesi.net/uploads/2020/01/27/899f66f7b631.pdf
    • https://nogomabena.weebly.com/uploads/1/3/0/5/130539897/7561566a42b77d.pdf
    • http://435676578364674396.com/uploads/1/3/0/5/130545365/130545365.html#ortaokul+matematik+olimpiyat+sorular%C4%B1+ve+%C3%A7%C3%B6z%C3%BCmleri+pdf
    • http://apexfrontier.com/uploads/1/3/0/4/130488195/pudite-

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001aa5.bin
0bf7a2948b2516648607b6e04260c6ff3aa5ce69900dc7fc473317ab82e00743
pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA5 9844 bytes