Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd2f3f7fa4130a9…

MALICIOUS

PDF

63.9 KB Authoring application: PDFBox
MD5: 3d3435c94fc39caec1cf08b70cdbef91 SHA-1: f4d2d200842c169b17aabeeb9d3705a1f148e009 SHA-256: 9bd2f3f7fa4130a991b08d3732a4f5a8359e2121102095b2864ec4ef1d680a2c
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM', with the primary suspicious URL being http://nps-music.com/uploads/1/3/0/4/130483733/7ce7c2ffa19.pdf. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or malware distribution attempt. The document body, though truncated, contains references to 'download repack' which aligns with a lure for malicious content.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://nps-music.com/uploads/1/3/0/4/130483733/7ce7c2ffa19.pdf
    • https://wozilobi.weebly.com/uploads/1/3/0/2/130272551/c23b84ced9de1.pdf
    • http://mmflackdesigns.com/uploads/1/3/0/2/130287894/269c4cc89.pdf
    • http://mylkshoppe.com/uploads/1/3/0/6/130620828/1d463.pdf
    • http://alisha-lmt.services/uploads/1/3/0/6/130620520/1770532.pdf
    • http://smartmobilityinc.com/uploads/1/3/0/4/130476575/zomugut.pdf
    • http://xetenel.giktarin.ru/uploads/2020/01/29/d28a2ac36.pdf
    • http://zamo.chaika-yalta.com/uploads/2020/01/29/kitutade.pdf
    • http://aliveyouthmebc.com/uploads/1/3/0/3/130323455/7272b85bd.pdf
    • http://instaprizer.pw/uploads/2020/01/28/degaluj.pdf
    • http://famonof.discomfited-usages.com/uploads/2020/01/28/820789.pdf
    • http://changemakersbusinessacademy.com/uploads/1/3/0/6/130604859/bakajefi.pdf
    • http://mojamaxob.olegdfr.fr/uploads/2020/01/28/rabiwebipesawusimizu.pdf
    • http://xijenugi.opr0.icu/uploads/2020/01/29/xupasem.pdf
    • http://nastybritches.com/uploads/1/3/0/3/130323143/5663e3c09886208.pdf
    • http://mraducanu.com/uploads/1/3/0/6/130639348/xemadavojobanewogum.pdf
    • http://drjohncasteele.com/uploads/1/3/0/6/130604195/60e196.pdf
    • http://fifure.good-robot.ru/uploads/2020/01/28/6317193.pdf
    • http://law7ati.com/uploads/1/3/0/4/130476322/tamulibame.pdf
    • http://newfeature.net/uploads/1/3/0/4/130488229/dubivunajenuteze.pdf
    • http://thecritterplace.weebly.com/uploads/1/3/0/6/130621210/mugabajimum_vorak.pdf
    • http://funetosiz.kvartiradomkzn.ru/uploads/2020/01/28/butajonix.pdf
    • http://wellspringintown.com/uploads/1/3/0/3/130323437/1453775.pdf
    • http://copyrightcontact-1000071854263.com/uploads/2020/01/29/rujezivesonupu_zarakogire_jejakew.pdf
    • http://outside-of-the-lines.com/uploads/1/3/0/6/130621734/vevofotu_fajefawana_tefudulimol_tatitenetoba.pdf
    • http://takeatriprentals.com/uploads/1/3/0/2/130287283/130287283.html#honey+select+download+repack
    • http://drjohncasteele.com/uploads/1/3/0/6/13

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a85.bin
5f4319052621ce9e1f0cdd37e3d3536ff4985d393e50fb4a3b27025644864e26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A85 9684 bytes
font_01_sfnt_off00009ac5.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC5 16204 bytes
font_02_sfnt_off0000af9d.bin
5473a019e3b4c3f19cb51b59a807267731ac923cc5c9e3064210c0fd4b032ea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF9D 5048 bytes
font_03_sfnt_off0000bf03.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF03 1708 bytes

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