Malicious PDF — malware analysis report

Static analysis result for SHA-256 02179670122b2754…

MALICIOUS

PDF

76.6 KB Created: 2020-12-07 16:20:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 93c8792c1ab4c8a0e672030b6c4af98d SHA-1: ba9c7099d62c8617715f65dc787191fc98a285de SHA-256: 02179670122b275489685202385ad759faf9c9fd76aff3b692b9206ca0b7081c
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDFs hosted on strikinglycdn.com, suggesting a link farm or SEO manipulation tactic. One of the external URIs, 'https://traffine.ru/aws?utm_term=bounce+tales+game++for+mobile', is suspicious and likely leads to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF.

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://traffine.ru/aws?utm_term=bounce+tales+game++for+mobile PDF link annotation
    • https://jutawalafomas.weebly.com/uploads/1/3/4/3/134316275/xijixafedijesumibepe.pdfIn PDF document text
    • https://tototatinup.weebly.com/uploads/1/3/4/3/134332383/munixefuworibed_nozizerijenuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404520/normal_5fc59c24dc498.pdfIn PDF document text
    • https://xowuxuwakewobi.weebly.com/uploads/1/3/4/8/134853014/8798ded4e847856.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e706f9a4-305e-4355-bea3-5dc5cb09374e/61622306037.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e8e56cf-c184-4f65-90bb-3321f31c04fd/shadow_fight_2_mod_apk_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68aa4d0b-149a-4e4c-b3e2-5b2651c2c364/12297295275.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ddb0a72-2d73-4f82-a19d-4cd6917430b4/minecraft_latest_update_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1303a2cf09257bd6de59a/t/5fc9911041142a3c4b36a11a/1607045394174/pawajesalomifapi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c91192c50b1a1e906058/t/5fcdf57be43f2b00a8cce2d3/1607333243963/love_stories_on_amazon_prime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9503240-bca2-4bb5-8d5c-81f65df2f487/46396877815.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58aa1880-b59e-4c1f-9efd-35a55aa23af0/kroger_application_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd106312-0d2f-4c13-8c25-671b95d55a67/68683719504.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfa0064be903ae6401353/1606220291430/53329336433.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF0 5388 bytes
SHA-256: 0ec9de32c2e6c9f9fded990b47850535fa35bbde51843c83b1cd26aa6744e850
font_01_sfnt_off00010232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10232 10352 bytes
SHA-256: 4803bab7936d9c3a395ceb4b2fca2bbd426550b6ab79055a1ba7aeceb537eb28

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