Malicious PDF — malware analysis report

Static analysis result for SHA-256 3078486006ccd5d0…

MALICIOUS

PDF

46.2 KB Created: 2020-10-22 16:48:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: d5d2392be99eab155218a2cb9a4b119e SHA-1: 1d50bdb426b566f99522a922617a24cdc7d8eef7 SHA-256: 3078486006ccd5d073d160271ca29a3841710961079216aacd6e8889ceca498c
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The document body text, though garbled, contains keywords related to data recovery and the redirector URL also mentions data recovery, suggesting a lure. The presence of numerous external PDF links points to a link farm used for SEO manipulation or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/123?keyword=odzyskiwanie+danych+z+telefonu+android+recuva In PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/897241f38.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3250b5961ed1.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/jodesox.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/palulajawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f88d573e01f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376852/normal_5f8b0446237d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f8735ffcfbb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372376/normal_5f8afeb2e0180.pdfIn PDF document text
    • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/802763dd30.pdfIn PDF document text
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/gexuzal.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/wosemamin.pdfIn PDF document text
    • https://xirofepomare.weebly.com/uploads/1/3/0/8/130814083/gojefofaku-kevijisivo-daxirava-wojopaba.pdfIn PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/5422008.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/leguvefu/18194374742.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/58303701996.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/acceptance_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/noviminorufasabidupu.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/fiputonopevukurijot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/6479/9644/files/47562739472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/4055/9263/files/rust_farming_guide_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9677/7915/files/fourth_book_of_occult_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1199/6318/files/english_english_marathi_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5565/1743/files/philosophy_of_education_in_action_an_inquiry-based_approach.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/bargaining_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/3208057184.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/53506080140.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_off000071f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F6 5504 bytes
SHA-256: 63cdc44cf1134ae2f1ce5829a41544d7740d93cd51718070a2e28967e6d3a90a
font_01_sfnt_off000084ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CE 11372 bytes
SHA-256: 8464fa6c1d9d85b7213f2178cb526b00403711242ef7a56f1f4425d0db3b120a

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