Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eaa786dadf9c06f…

MALICIOUS

PDF

41.0 KB Created: 2020-08-25 06:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63a21972a7c0d02e81a7ce3b832812e7 SHA-1: 8c39e560a41f436205e0bf62957e2713efbf1169 SHA-256: 3eaa786dadf9c06ffdba060b1fa3f8e2e60fdb37abc7ea17df6c9c7f78ff32d5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The document body, though partially corrupted, contains text related to an 'iPhone X emulator' and a URL that appears to be part of a lure. The primary malicious link identified is https://ttraff.com/pify?keyword=iphone+x+emulator+for+android+studio, which is likely used to redirect the user to a malicious site. The presence of numerous PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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.com/pify?keyword=iphone+x+emulator+for+android+studio
    • http://tivebapu.auburnhistorical.org/uploads/1/3/1/4/131406361/9836945.pdf
    • http://kunad.drcarriebrennan.com/uploads/1/3/1/3/131378991/1756087.pdf
    • https://cdn.shopify.com/s/files/1/0459/9375/4781/files/65169054898.pdf
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/.pdf
    • https://cdn.shopify.com/s/files/1/0430/2870/9539/files/nivolog.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/vopam.pdf
    • https://cdn.shopify.com/s/files/1/0437/5494/6721/files/40372293946.pdf
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/32470846413.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/seta_baricco.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1085/files/difference_between_neutrino_and_antineutrino.pdf
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/bowamoweguvojopu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/30958880126.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/temaradibikimok.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_off000060ce.bin
c1650d80c90492951d8604c75530fbfa63ae097c66fd2796ecf188efaea42aea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60CE 5288 bytes
font_01_sfnt_off00007295.bin
61b48c65235ca1e57879b539d4f4b315becc2a3ceab44d23ed86286285bdae09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7295 10572 bytes

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