Malicious PDF — malware analysis report

Static analysis result for SHA-256 967e6bb36affa984…

MALICIOUS

PDF

34.6 KB Created: 2020-11-01 19:01:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a0cda8f4473f829a1b9ae6e5f20ab4dc SHA-1: bb720633c02082cfc5371896d6bc4ac31c4401f5 SHA-256: 967e6bb36affa984868d96e42e001f5ba4547a53c49026c82beca9064932439d
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, disguised as a watch manual. This indicates a phishing or scam attempt, likely to lead the user to further malicious content or exploit. The presence of a large number of external links, many pointing to PDFs, suggests a link farm or SEO poisoning tactic to increase visibility and traffic to malicious sites.

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://cctraff.ru/aws?keyword=citizen+eco+drive+gn+4w+s+12g+manual In PDF document text
    • https://birebojutadavom.weebly.com/uploads/1/3/4/3/134342015/642011f5.pdfIn PDF document text
    • https://zozelezike.weebly.com/uploads/1/3/4/4/134434207/3950090.pdfIn PDF document text
    • https://kudoxere.weebly.com/uploads/1/3/4/5/134591480/veniza.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/a96b2f73-eab6-4aad-acba-e9ce44041a97/40354710095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a2c5dc-c563-49d0-83b0-7203d6585c52/algebra_chapter_9_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/baudrillard_simulacra_simulation.pdfIn PDF document text
    • https://s3.amazonaws.com/lirivugu/kanivabig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beb4dc70-739e-449c-a07c-bde250445f58/jifutowodokufilebawibafi.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/the_wonder_pax_cold.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3077/3913/files/percy_jackson_google_drive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9087aa14-9b67-496f-923d-dbccb627196c/19950250419.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/apicultura_colombia.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E12 5636 bytes
SHA-256: 2168fec5c40aa122473673992c2095d0e546e1365b556703c6927c19f7d1018d
font_01_sfnt_off0000514f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x514F 8916 bytes
SHA-256: 81692e481850132edba287256e0e0137161e6ec1f67c90daa5a5b18dcb58d72c
font_02_sfnt_off00006ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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