Malicious PDF — malware analysis report

Static analysis result for SHA-256 abcf8e71726ac961…

MALICIOUS

PDF

39.2 KB Authoring application: QPDF First seen: 2020-09-24
MD5: 891c09223ef0b8f3249f41b4b676de93 SHA-1: 4eb5a50d58f7080c5cc98d0ccd4fc994a8fd260f SHA-256: abcf8e71726ac9614baaeab43cec93c5892cc6b4d040fdb620efb52b98fb4a4d
152 Risk Score

Malware Insights

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

The PDF was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, indicating a link farm designed to redirect users. The primary heuristic firing, PDF_SEO_LINK_FARM, confirms this behavior, with 31 external PDF links found. The document body contains garbled text, suggesting it is not intended for human readability but rather to host these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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.theaustinproject.org/uploads/1/3/0/4/130488846/9a8197c12b750b.pdf In PDF document text
    • http://hostmaster.myjourneyofpeace.com/uploads/1/3/0/4/130488734/jumap_godobovatesuj_nozopivenalit_garesixadutuwux.pdfIn PDF document text
    • http://cpanel.fionashort.co.uk/uploads/1/3/0/2/130289474/9366411.pdfIn PDF document text
    • http://obidev.com/uploads/1/3/0/5/130539091/tivotonadarem-viziluteri-zuzigokefes.pdfIn PDF document text
    • http://dukeofyorka166.co.uk/uploads/1/3/0/6/130640142/3669857.pdfIn PDF document text
    • http://masonrystonework.com/uploads/1/3/0/8/130873852/zoxidawigan-dipudasuwitozem-dugag-rafuda.pdfIn PDF document text
    • http://akhdc.com/uploads/1/3/0/6/130620429/jazexesajuv_sifufiwazara_buvav_sodopabogex.pdfIn PDF document text
    • http://mail-lima.bwmart.pl/uploads/1/3/0/5/130546385/pifexegexat_nafumomojuj_xakanowi_ludenuja.pdfIn PDF document text
    • http://buildbelievers.com/uploads/1/3/0/2/130289763/kupijego.pdfIn PDF document text
    • http://protechion.us/uploads/1/3/0/6/130639687/rivekopodage.pdfIn PDF document text
    • http://www.recessproject.ca/uploads/1/3/0/9/130969858/3806304.pdfIn PDF document text
    • http://maltaglasscreations.com/uploads/1/3/0/7/130740538/barawi.pdfIn PDF document text
    • http://cpanel.mindfulevolution.net/uploads/1/3/0/5/130588529/5178154.pdfIn PDF document text
    • http://zenturesolutions.com/uploads/1/3/0/5/130588880/safokaginaxixobaki.pdfIn PDF document text
    • http://www.betterschoolsintexas.com/uploads/1/3/0/5/130546294/054e9e3.pdfIn PDF document text
    • http://bestarizonahomesforsale.com/uploads/1/3/0/2/130288864/679a811e0e0.pdfIn PDF document text
    • http://www.alicetopple-textiles.com/uploads/1/3/0/5/130590162/2a3e335bb2c4a6.pdfIn PDF document text
    • http://richardsnashall.net/uploads/1/3/0/3/130313495/218ffb26a.pdfIn PDF document text
    • http://interviewstogogo.com/uploads/1/3/0/5/130550834/katavexan-mozavipafem-xanepoda-webegakopovu.pdfIn PDF document text
    • http://laudatemariam.com/uploads/1/3/0/6/130605030/nopetasejonumujerezu.pdfIn PDF document text
    • http://mrssouthernsclass.com/uploads/1/3/0/8/130814859/7995018.pdfIn PDF document text
    • http://lauranathanparty.com/uploads/1/3/0/7/130739088/pizopezovugiwo-xifokefugoku-buzumaxawit.pdfIn PDF document text
    • http://corbeausucks.com/uploads/1/3/0/2/130272420/mewafizejifijuxez.pdfIn PDF document text
    • http://monarchmagic.com/uploads/1/3/0/5/130588650/1f3521.pdfIn PDF document text
    • http://jamiefehr.com/uploads/1/3/0/6/130622077/130622077.html#abnormal+psychology+perspectives+6th+edition+pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000028f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28F6 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea
font_01_sfnt_off000034ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34BA 7820 bytes
SHA-256: e3708ed2d6e4226a38710b6feba0fe1e933b8abbf593eaea4ab6c53373c3c9df

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