Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05a95158a91c8d8…

MALICIOUS

PDF

33.7 KB Created: 2020-10-10 11:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 32b6e8a7afdd2cbd0884e0fdf87f0b60 SHA-1: 32ecc474a32ab06f5acf622602905b4ac3f7de98 SHA-256: f05a95158a91c8d8a76cd6b03b0e11547bd6e2e1c8e2902c6bb8bc57e69aaa93
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable hosting, acting as a link farm. One of the primary URLs, 'https://ttraff.me/pify?keyword=light+keeper+pro+canada', is identified as a known malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/pify?keyword=light+keeper+pro+canada In PDF document text
    • https://site-1040558.mozfiles.com/files/1040558/lumaxusawosef.pdfIn PDF document text
    • https://site-1037251.mozfiles.com/files/1037251/68458723161.pdfIn PDF document text
    • https://site-1044306.mozfiles.com/files/1044306/tomedofujifevibiza.pdfIn PDF document text
    • https://site-1038771.mozfiles.com/files/1038771/latalulasumumexurukotezi.pdfIn PDF document text
    • https://site-1039931.mozfiles.com/files/1039931/zijixalemaw.pdfIn PDF document text
    • https://site-1036812.mozfiles.com/files/1036812/76655327260.pdfIn PDF document text
    • http://files.sandiegotranslationcenter.com/uploads/1/3/1/8/131857734/kibifawalagozo_noriji_wikukavav_jirelap.pdfIn PDF document text
    • http://viveton.europeanunionofwomen.com/uploads/1/3/0/8/130814328/paxomomunopit.pdfIn PDF document text
    • http://files.kenpovideo.com/uploads/1/3/0/8/130814118/6667301.pdfIn PDF document text
    • http://vewabo.jamiekadas.com/uploads/1/3/2/8/132814930/wezilazelan_besejatakegobum_dizez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2420/3424/files/animal_jam_newspaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9344/2208/files/83107518047.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_off00004726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4726 5132 bytes
SHA-256: 755c1da9ea41e95fa2af1e5f0784e7c9b960b7d242d059a2c79cec177455839d
font_01_sfnt_off00005892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5892 9756 bytes
SHA-256: a62fc2ef2bbe5bc374c315ea0fb2702f35d6c15c0474d24eeccb18bc027fe9f5