Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe70862c3940f555…

MALICIOUS

PDF

41.8 KB Created: 2020-08-19 15:37:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80984761657ba39fa934937cbdf8e103 SHA-1: c158eb733b937bc0dfd0e5961df0c5b4f28767e2 SHA-256: fe70862c3940f555dfb713685dae651e90546497f180e4455e5698bc1709f130
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.com/pify?keyword=reprise+do+globo+reporter+de+ontem', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a lure or redirection mechanism. No scripts were extracted, and the document body's content is not directly indicative of a specific scam, leading to an 'unknown family' classification.

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=reprise+do+globo+reporter+de+ontem
    • http://posej.haleysdailies.com/uploads/1/3/0/7/130739777/9436749.pdf
    • http://files.margaretgracie.com/uploads/1/3/0/7/130740573/dobaj_megop_jesitoputivor_milerugujivageg.pdf
    • http://rumegolo.montanabridalshows.com/uploads/1/3/1/6/131636727/9938076.pdf
    • http://files.greatislandgardenclub.org/uploads/1/3/1/3/131381288/duwufegenasiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6624/files/bilotomogevebizazibezal.pdf
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/the_giver_chapter_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/duguduzufubodesukidibupo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/20106150408.pdf
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/56120924657.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/6524422188.pdf
    • https://cdn.shopify.com/s/files/1/0432/7614/0710/files/r_tutorial_with_bayesian_statistics.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/73990630118.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/18217258673.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/sazemakuvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/45476142516.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_off00006483.bin
59993b5bd84f5491fb5e0199a6190e8f716c82b50143d65144fe608d4c391be0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 5216 bytes
font_01_sfnt_off0000762a.bin
85b3be732b379189364d421bca56b56a4f43f0ecfbd9bd1a6011183d0322ecd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x762A 10692 bytes

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