Malicious PDF — malware analysis report

Static analysis result for SHA-256 1163fd2f2243a660…

MALICIOUS

PDF

37.0 KB Authoring application: Pdftk
MD5: 5dd57bea0c1f5b4bc9147aac5aca07ed SHA-1: b131205cf05cd42edf54fdbaa939793f7138bb5b SHA-256: 1163fd2f2243a660876b00b0a4fa18c314c96f6e02e464c8d2a6b2982f7f7207
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of embedded external links, suggesting a link farm designed to redirect users to potentially harmful content. The document body contains garbled text and what appears to be a reference to 'Path-goal theory', which is likely a lure to disguise the malicious intent.

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://jakeandgui.com/uploads/1/3/0/5/130589054/f53c9108480f9d.pdf
    • http://coffeecakecomfort.com/uploads/1/3/0/2/130270826/f23971b3f4.pdf
    • http://adolfo.club/uploads/1/3/0/7/130775854/2060561.pdf
    • http://indmaninfraprojects.com/uploads/1/3/0/3/130313553/jefimetufuloba.pdf
    • http://robertsstrenga.com/uploads/1/3/0/8/130874322/df95b.pdf
    • http://linquer.net/uploads/1/3/0/3/130313488/wilikisa-kores-zatarafetomi.pdf
    • http://premperfection.com/uploads/1/3/0/3/130323237/f43cab3e9696a1d.pdf
    • http://cabinetmakersipswich.com.au/uploads/1/3/0/4/130488889/3475238.pdf
    • http://mishyou.com/uploads/1/3/0/8/130813669/8460659.pdf
    • http://yirehesalazar.com/uploads/1/3/0/5/130544437/2728149.pdf
    • http://sydneyft.com/uploads/1/3/0/7/130739330/2847305.pdf
    • http://seed-to-fruit.com/uploads/1/3/0/6/130604498/katesim.pdf
    • http://realizingthepromisesofgod.com/uploads/1/3/0/2/130287929/kasazunoli_warin_xewigosete_sawozanowosaveb.pdf
    • http://stpaulsontheway.org/uploads/1/3/0/2/130272932/rubud-fivexitusedumo.pdf
    • http://www.highabovetheice.com/uploads/1/3/0/2/130292098/ae3b3cce19.pdf
    • http://natashaf.net/uploads/1/3/0/2/130288326/9708663.pdf
    • http://30wallst.com/uploads/1/3/0/4/130488382/f8c88c588e78c.pdf
    • http://pinballwizard.org/uploads/1/3/0/6/130639052/xisag.pdf
    • http://merakifarmacy.com/uploads/1/3/0/6/130620800/mabapataxumar.pdf
    • http://pl6vs.salon225.com/uploads/1/3/0/7/130776841/130776841.html#path-goal+theory+argues+that+quizlet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003244.bin
4984fde08810d7330b35c34a057fc41a588d6a6556d6bd43ba72d2a1f553b11a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3244 7924 bytes

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