Malicious PDF — malware analysis report

Static analysis result for SHA-256 62280bc63a653602…

MALICIOUS

PDF

62.7 KB Created: 2020-12-27 00:44:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 392799d06a090a3807a149e1ace8f178 SHA-1: 09d7cbd5c558f51a6e9b629254abee75e1fbc2d7 SHA-256: 62280bc63a653602f68cc75297a33bc7d0268736e655478c65aef755d3753c85
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to Weebly-hosted PDFs, which is indicative of a link farm or SEO spamming technique. One of the primary external links, 'https://trafffe.ru/123?utm_term=auto+assure+o%2527fallon+mo', is suspicious and likely leads to a malicious site. The ClamAV detection and ML classifier further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://trafffe.ru/123?utm_term=auto+assure+o%2527fallon+mo PDF link annotation
    • https://pijusutuwo.weebly.com/uploads/1/3/1/4/131407307/7435278.pdfIn PDF document text
    • https://davavenetu.weebly.com/uploads/1/3/4/5/134500413/bizonabava.pdfIn PDF document text
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/9871aea509a33.pdfIn PDF document text
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/a03108cb51.pdfIn PDF document text
    • https://koxokigibobov.weebly.com/uploads/1/3/4/6/134600250/revuzulu.pdfIn PDF document text
    • https://nuxagaselupig.weebly.com/uploads/1/3/4/0/134016775/3a151ae5b1.pdfIn PDF document text
    • https://gipadakox.weebly.com/uploads/1/3/4/8/134884067/wifeveziregolonire.pdfIn PDF document text
    • https://vobelorigod.weebly.com/uploads/1/3/4/0/134096073/2cbdb364520.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/subud/fundamentals_of_python_first_programs_2012.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/fakofoxusojoputelixevu.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/free_live_streaming_of_pacquiao_fight.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunoje/4_8_practice_skills_dilations_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/nighthawk_x4_r7500v2.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/marvel_future_fight_guide_tier_2.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/dejozumorelexijezajufam.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF4 4936 bytes
SHA-256: bfb33e7b49b02c17b470920598beab2cba9fce7c78dd82d7a89528517a8efb1d
font_01_sfnt_off0000cca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA8 9692 bytes
SHA-256: 0ce3c2994257c12d60d4ffb4f4d3719198aca32a05dc6688fae1cbda41e8a3ec

Open this report in the interactive analyzer, or submit your own file for analysis.