Malicious PDF — malware analysis report

Static analysis result for SHA-256 419b497260a750a9…

MALICIOUS

PDF

39.2 KB Created: 2020-08-21 13:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6983dd8abf2dd517f5518d25cbf06f48 SHA-1: 891694f492d398205d8f0eeb78cfd807fae0e829 SHA-256: 419b497260a750a93d625fc45d540bac52a81cba966c0a0259f97bd873981069
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. The primary intent seems to be directing users to malicious sites, likely for further exploitation or credential harvesting.

Heuristics 3

  • 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.
  • 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=ontario+progress+report+language+comments
    • http://gositim.bcdgonzalez.com/uploads/1/3/1/4/131483138/fasodizedisako.pdf
    • http://files.fcdetail.com/uploads/1/3/0/7/130739175/kaloxetusotat-jemezizi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6122/2307/files/ielts_band_9_academic_writing_task_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/97813949524.pdf
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/algebra_1_mcgraw_hill_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/losevavedutagekovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0631/2093/files/87747369366.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/bacterial_diseases_of_crop_plants.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/bioconjugate_techniques_3rd_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6746/files/adobe_reader_offline_installer_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0440/3917/6342/files/91820269995.pdf
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/bahut_aayi_gayi_yaadein_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/challani_o_chirugali_ayyappa_naa_song.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_off00005b3b.bin
2fcdb4cd185a603833054c04ec02dcbae29a78ea8ad515917f7de24709d24ffb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3B 5280 bytes
font_01_sfnt_off00006d1a.bin
bf05b4b46a49d56724a7336471901ceef412a3285a984cf38fa0f2dd060a3aae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1A 10288 bytes

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