Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0e9df26eb567b6…

MALICIOUS

PDF

88.5 KB Created: 2021-06-09 21:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4b718e920f727e0b1e8cec53080fd319 SHA-1: c44775a2f85afe0ee243bf03728fff729ca42f82 SHA-256: 5e0e9df26eb567b66d5df6887a62608117e31444f441d96f8aee02439613aec4
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm used for SEO manipulation or phishing. The presence of a 'Cisco 3850- 12s- e datasheet' in the document body, combined with the PDF_SEO_LINK_FARM heuristic, indicates a lure to drive traffic to malicious or deceptive websites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://zajinet.ru/123?utm_term=cisco+3850-+12s-+e+datasheet PDF link annotation
    • https://gepinizidewepi.weebly.com/uploads/1/3/4/3/134305752/vujurufunupu_mojadelavapu.pdfIn PDF document text
    • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/6832547.pdfIn PDF document text
    • https://xapewagese.weebly.com/uploads/1/3/4/3/134314981/rizom-buniw.pdfIn PDF document text
    • https://vitumiwoz.weebly.com/uploads/1/3/4/6/134697216/8c3669e5894.pdfIn PDF document text
    • https://lijiwowotu.weebly.com/uploads/1/3/4/5/134587055/69b0d36.pdfIn PDF document text
    • https://wiwufupa.weebly.com/uploads/1/3/2/8/132814928/9870169.pdfIn PDF document text
    • https://xiwaxodo.weebly.com/uploads/1/3/4/3/134319271/0784f8.pdfIn PDF document text
    • https://kaketoxemi.weebly.com/uploads/1/3/5/9/135989659/vafuralufe_zorogu_nadalusud_wexofagikub.pdfIn PDF document text
    • https://zinufojixanes.weebly.com/uploads/1/3/4/8/134893805/xalazazisidirom.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/97a43751-f5fa-41c8-a21d-e2697c2607e5/vipejanafetizowakejuza.pdfIn PDF document text
    • http://rugewenuzed.pbworks.com/f/pelolufofoxivaxuvoseten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8c1126d-3b1f-4d9b-a807-f1d35fa2b27c/where_to_find_epic_number.pdfIn PDF document text
    • http://dodosuta.pbworks.com/f/14684935038.pdfIn PDF document text
    • http://wuwazilizos.pbworks.com/w/file/fetch/144424767/what_are_the_different_types_of_intermolecular_forces_of_attraction_from_strongest_to_weakest.pdfIn PDF document text
    • http://baxikufop.pbworks.com/w/file/fetch/144886155/prefer_would_rather_worksheet.pdfIn PDF document text
    • http://dawijunegolo.pbworks.com/f/9265279673.pdfIn PDF document text
    • http://bovojigu.pbworks.com/f/72246202453.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f846191f-4b06-4017-be8d-962eb5e09a50/falibilu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861d07c3-794c-409e-ae40-eff03e847c72/46968783645.pdfIn PDF document text
    • http://tefimemovem.pbworks.com/w/file/fetch/144618294/cubes_strategy_worksheet.pdfIn PDF document text
    • http://bojirakaj.pbworks.com/f/frontline_commando_2_mod_apk_and_data_obb_file.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA6 2960 bytes
SHA-256: 9e8301a812e0963997f2c69c75bfd39e7fcc44359b8a43baf6657440e065e79d
font_01_sfnt_off0000f616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF616 5444 bytes
SHA-256: 7855bee83a769621c3d3c06dbb8cbd10f533f8e366fa0b1bb34260c6343d8bdc
font_02_sfnt_off000108a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A9 10872 bytes
SHA-256: 564b74fe601a70b193888004bf71474c781fb4dca206d4f54061764395ad5759
font_03_sfnt_off00012df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DF1 17648 bytes
SHA-256: acd141b1a5fbfa011a0ad6da8bf9da181ab388ebb6925db4b47ad5e43479937c
font_04_sfnt_off000145db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145DB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.