Malicious PDF — malware analysis report

Static analysis result for SHA-256 86112a1f4100f357…

MALICIOUS

PDF

41.7 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: f0b9caa1f7861bdc75ffe199b3fd7d05 SHA-1: a7e7f43414c2905da362ff953878833a2d81efa2 SHA-256: 86112a1f4100f3579926083cc0cf8ecfc27eda25dc5060912a227a133826e99a
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical finding for a link farm and a machine learning model indicating maliciousness. The document contains numerous embedded URLs pointing to other PDFs, suggesting a tactic to distribute malicious content or manipulate search engine results. While no scripts were explicitly extracted, the presence of embedded URLs and the link farm heuristic strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.roncocamana.com/uploads/1/3/0/7/130775031/aefbc90b913abd.pdf In PDF document text
    • http://insecureexchange.net/uploads/1/3/0/6/130639356/rororapurexiw-gemokixim.pdfIn PDF document text
    • http://webmail.elleextensioncils.com/uploads/1/3/0/2/130289564/f05ed040.pdfIn PDF document text
    • http://www.alireder.com/uploads/1/3/0/6/130604152/7599769.pdfIn PDF document text
    • http://coldwatercollections.com/uploads/1/3/0/7/130775529/tisumomapiwemope.pdfIn PDF document text
    • http://omarloy.com/uploads/1/3/0/5/130539279/dolekamirevajutu.pdfIn PDF document text
    • http://www.rawindianhairs.com/uploads/1/3/0/6/130620429/jifiwereneg.pdfIn PDF document text
    • http://auldalliancemerchants.com.au/uploads/1/3/0/7/130738684/540e2c630d0.pdfIn PDF document text
    • http://realizationofdreams.com/uploads/1/3/0/2/130288962/jofutugejudukuf-punanizetasum-tuteg-ninuwiwejin.pdfIn PDF document text
    • http://pacificcharmstudio.com/uploads/1/3/0/4/130483138/zudewez_pazemer_naxosibexal_toxagimap.pdfIn PDF document text
    • http://fredericksburggolfshow.com/uploads/1/3/0/5/130588498/todax-zokijufewuf-kelomugonowitop-famano.pdfIn PDF document text
    • http://codebeforedawn.net/uploads/1/3/0/2/130289227/sawizotodiwomuza.pdfIn PDF document text
    • http://moretoexplore.co/uploads/1/3/0/2/130272330/lewiripekixomufasod.pdfIn PDF document text
    • http://fretbuzz.com/uploads/1/3/0/4/130476462/tugefin.pdfIn PDF document text
    • http://mta-sts.mail.moorechaplains.com/uploads/1/3/0/6/130621701/abb32a8cc.pdfIn PDF document text
    • http://myartisfashion.com/uploads/1/3/0/3/130323277/4024514.pdfIn PDF document text
    • http://jbheatonresearch.net/uploads/1/3/0/6/130639578/xesagigitadop-zopaxulodu-volamewarogaviv.pdfIn PDF document text
    • http://2onrtn.bdgct.com/uploads/1/3/0/8/130815381/130815381.html#allianz+travel+insurance+cancel+flightIn PDF document text

Related samples 4

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_off00004551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4551 8336 bytes
SHA-256: b57d5553bbd5b1694358736f6daa4ac8b5aa7e77f74777261fa9746ab0092b2f

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