Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b0005be22d6c1d7…

MALICIOUS

PDF

40.3 KB Created: 2020-10-13 07:34:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a703f5b78ee74dc325bc5d6a28b45592 SHA-1: 34031bc3c8d7a756d5a5fa2993277f3dce945fa3 SHA-256: 7b0005be22d6c1d74f8a5bc0f2a9253d3df543648cfe704830321273a2f040b6
154 Risk Score

Malware Insights

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

This PDF file contains numerous embedded URLs, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Hoyer lift operating instructions' and includes the malicious URL, suggesting a lure to trick users into visiting a potentially harmful site. The presence of many external PDF links also indicates a link farm, likely for SEO manipulation or to host further 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://gettraff.ru/strik?keyword=hoyer+lift+operating+instructions In PDF document text
    • http://surovixuw.workshopinabox.shop/uploads/1/3/2/8/132814930/pituni.pdfIn PDF document text
    • http://files.ranchocommunity.com/uploads/1/3/0/7/130738621/rolakeponemuwumu.pdfIn PDF document text
    • https://site-1037251.mozfiles.com/files/1037251/dafigejunetosad.pdfIn PDF document text
    • https://site-1036761.mozfiles.com/files/1036761/nekelifexed.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/7bcbf784-c23e-41f3-80c2-db8c47311700/dilumebowifeguzabedinubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20d6891d-b83b-442b-a85f-ebb70b09d490/gagiwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b92c0f59-56e6-49d1-97d5-1aeba3953600/rogupozuxipipujamoruji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dca04358-87ac-4784-b881-df10037ca345/81911761125.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65227da9-e89d-4340-8ccb-c5b6839fff39/livikanafalakukekesel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4891/0498/files/jenujojomorumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/pokemon_light_platinum_patch.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_off000061bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BF 5244 bytes
SHA-256: 93b845f7576397e067c94217aa87d8d8b20dc5b5785d0b44bd8705bb10a053b2
font_01_sfnt_off000073aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AA 9656 bytes
SHA-256: abca03fdce3031d59161d108db17a705876749115579b52600c9bcab392ed718

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