Malicious PDF — malware analysis report

Static analysis result for SHA-256 97005dfc349029f0…

MALICIOUS

PDF

33.4 KB Created: 2020-08-21 17:17:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8962a5f77a028b21f477c035311a6fed SHA-1: f5a19a6f33f076caf333dc75c19da970194a9255 SHA-256: 97005dfc349029f0b338c51efbf4553f656242e20023b5fc3be77e29df1c8aa9
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Facebook lite' and '9apps for iphone', suggesting a lure to download potentially unwanted or malicious applications. The presence of a visual download button heuristic further supports this. The primary malicious URL identified is https://ttraff.ru/pify?keyword=facebook+lite++9apps+for+iphone.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=facebook+lite++9apps+for+iphone
    • http://pakuf.tanawanhandycraft.com/uploads/1/3/1/3/131383544/9272781.pdf
    • http://files.congsupport.info/uploads/1/3/1/0/131071067/petasu_luvobipenapopi_daxalejira_jinoraz.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/dawivixeroru.pdf
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/benevolent_fund_form_kpk.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5680/files/car_repair_invoice_template.pdf
    • https://cdn.shopify.com/s/files/1/0454/2994/8572/files/rupubiferawumixo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9892/2403/files/gafoxewegurewoloxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7141/4167/files/8223821957.pdf
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/72517073450.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/70056840568.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/57926664796.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004582.bin
29fbc03ca48ed44c9bbda3b133a57465e2ba9a19bd453c6c3e4566c86f64532e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4582 5416 bytes
font_01_sfnt_off000057e0.bin
06cfd380d25a2d0cfa2aa0050f13968e801785baac4d95a13892af77a874f917		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E0 9708 bytes

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