Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0fa098d2fcd41d…

MALICIOUS

PDF

59.2 KB Created: 2020-11-05 07:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 026ed1e61926af1de01640f3eb2b4d84 SHA-1: 176937e23eafccde52db252b5c2dc25e84d7f66d SHA-256: 0f0fa098d2fcd41dfd28a063d6b97f93ea7ff133bcee114dec1dc74dba9e316f
154 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious domain, disguised as a lure for popular media content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies this behavior, indicating an attempt to drive traffic to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or redirection attack.

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.club/123?keyword=avengers+endgame+free+youtube+live+stream In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/winepogor.pdfIn PDF document text
    • https://vozutububedem.weebly.com/uploads/1/3/4/3/134372478/3927529.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408594/normal_5f92459e612a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411246/normal_5f94eb24b4b96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383573/normal_5fa27d080a990.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413969/normal_5f9d006352a5c.pdfIn PDF document text
    • https://gozexorajive.weebly.com/uploads/1/3/4/6/134610068/a4c6abf8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d086535b-4035-4c6f-891c-71cd68cb3e7b/vewevemelezenagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8661/9819/files/green_tea_fat_burner_recall.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0bb000b-5957-4bfb-885d-3c3c442d65f7/30462768054.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79a1c14b-74cf-4b9c-bf38-c87d148d6b41/sisufekowetakigatanulab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3129/3863/files/39808897482.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/he_chose_the_nails_sermon_series.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8874 4392 bytes
SHA-256: 6e7b6de29b0dfbb5783c9f06439c436b036ea4e3932f11576e192968220c0b23
font_01_sfnt_off000097e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E9 5400 bytes
SHA-256: 582e253a45dede3d54d847cbf25ec4369923b62e6726d56dd237f800c9ccd0fb
font_02_sfnt_off0000aa34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA34 10896 bytes
SHA-256: 167cc49473dd09d1b2f04e8d096ea3736b20573e9dc1d54161a324cf690347e6
font_03_sfnt_off0000cf24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF24 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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