Malicious PDF — malware analysis report

Static analysis result for SHA-256 79ccfef815910bd4…

MALICIOUS

PDF

41.9 KB Authoring application: PDF Studio First seen: 2020-09-04
MD5: e851da810e57c3801a9b05d0d2428c39 SHA-1: 2855b7a5ae7d697226a6592339d5fc973bc0886d SHA-256: 79ccfef815910bd40ade83d12f46f050b9d275ed1a0d5c58796d04c20f8e1d34
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mjacoby88.com/uploads/1/3/0/7/130738684/7652912.pdf In PDF document text
    • http://qutasa.com/uploads/1/3/0/8/130814526/lanunetezerasok.pdfIn PDF document text
    • http://mergeperfect.com/uploads/1/3/0/6/130605416/lurivepuna.pdfIn PDF document text
    • http://allstarroad.com/uploads/1/3/0/7/130776047/fcedc7342be08b.pdfIn PDF document text
    • http://andykennedyhomes.com/uploads/1/3/0/8/130815664/7750586.pdfIn PDF document text
    • http://neoshirtco.com/uploads/1/3/0/2/130271207/bison.pdfIn PDF document text
    • http://mossfrogoutfitters.com/uploads/1/3/0/6/130640063/develanurapena_mizimipesoguz_zakezipe.pdfIn PDF document text
    • http://midicicastlerock.com/uploads/1/3/0/7/130775843/pivevawusef.pdfIn PDF document text
    • http://justinbdennis.com/uploads/1/3/0/7/130776006/4538627.pdfIn PDF document text
    • http://musicspabox.com/uploads/1/3/0/6/130621431/431ec.pdfIn PDF document text
    • http://milledlogs.com/uploads/1/3/0/5/130541065/jexukivutema.pdfIn PDF document text
    • http://agoffacademy.com/uploads/1/3/0/5/130539022/312528.pdfIn PDF document text
    • http://miguelonmusicproductions.com/uploads/1/3/0/4/130435531/gozurebu_godopav_levonaw.pdfIn PDF document text
    • http://bluffcreekfarmsbedandbreakfast.com/uploads/1/3/0/7/130738722/lubibamevabekezunu.pdfIn PDF document text
    • http://liquorlawsvt.com/uploads/1/3/0/8/130814062/rirasosixula.pdfIn PDF document text
    • http://bethmccash.com/uploads/1/3/0/3/130313117/tixovab.pdfIn PDF document text
    • http://edmontonadr.com/uploads/1/3/0/5/130590724/zujogesunulem.pdfIn PDF document text
    • http://masterboon.org/uploads/1/3/0/7/130775328/sidezanoveneme-lujutiwaredupu-xuxuzavumed.pdfIn PDF document text
    • http://canyonman.org/uploads/1/3/0/2/130271121/7806515.pdfIn PDF document text
    • http://ilovestan.info/uploads/1/3/0/8/130873932/vefalaganewene-forotozo-bufitodononev.pdfIn PDF document text
    • http://chicagotoeflschool.com/uploads/1/3/0/6/130620736/tesin-gosaxifavet-zopipejup.pdfIn PDF document text
    • http://ponderosatree.com/uploads/1/3/0/6/130603731/rosalodunezevibevawo.pdfIn PDF document text
    • http://angelahardison.online/uploads/1/3/0/2/130289510/tarazunisigelibuta.pdfIn PDF document text
    • http://ancestryseekers.com/uploads/1/3/0/7/130740625/nepimifodil_sewegexegonivaj_fetiturefidapop_xuwetelefegamuk.pdfIn PDF document text
    • http://naturallifearchive.org/uploads/1/3/0/7/130775744/6764540.pdfIn PDF document text
    • http://beaverdamchurchonline.org/uploads/1/3/0/6/130605312/130605312.html#esl+vocabulary+worksheetsIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C37 8920 bytes
SHA-256: 81d32fbda08254ebe620b86ad324ce2a2470d5472698e02dd71308f6558ecb33

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