Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ece5e3c1dab56d9…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 06:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 682a632846b8023fb6ffb78510b35b90 SHA-1: 028f3ce17881cf2e00570608ae37c32cd932b890 SHA-256: 9ece5e3c1dab56d93034a94a834eb30daae6e76594cc6f13e671f0de2c911d73
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which are hosted on Shopify. One prominent link, disguised as a certificate template, redirects to `https://ttraff.com/pify?keyword=volunteer+certificate+of+appreciation+template`, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise.

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=volunteer+certificate+of+appreciation+template
    • http://files.iskyteam.com/uploads/1/3/1/3/131398084/sibelowuzane.pdf
    • http://files.dirtbagcoffin.com/uploads/1/3/0/9/130969389/7641c40427ddd44.pdf
    • http://files.janeshi.org/uploads/1/3/0/7/130776110/mafevasa_pirivifavo_powatuwugiw.pdf
    • http://files.champagneandlinen.com/uploads/1/3/1/0/131071037/98d598a1.pdf
    • http://files.prairiedusttrail.com/uploads/1/3/0/7/130776118/76620.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/wevusas.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/negiwew.pdf
    • https://cdn.shopify.com/s/files/1/0436/6240/9881/files/77530700240.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/22719225087.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/curso_completo_de_economia_em.pdf
    • https://cdn.shopify.com/s/files/1/0430/8054/8503/files/vejawotubasek.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/funny_discord_servers.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/nevusevapafumoperoduzi.pdf
    • https://cdn.shopify.com/s/files/1/0436/0385/3469/files/fexezovuwitisokolasaze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdf
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/57388277962.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_off00006660.bin
f772142fadde94257738de3d302b2f54b5c3fe9a993dc6374cf8e8a579847021		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6660 4948 bytes
font_01_sfnt_off00007726.bin
a60958c924869cad6d9fef965fb6265b6df5d7596d2c1a1a17ef3f2f92dd3655		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7726 10096 bytes

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