Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b449e29442f35c0…

MALICIOUS

PDF

40.0 KB Created: 2020-08-01 12:20:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f5be3ff6b827b1a64b198ed99fdd089 SHA-1: e01884b100317a343be8d7dfe26dc856b46ba222 SHA-256: 1b449e29442f35c0904cc23cc12c52b0832790ba5bc5134b00116788aa527eae
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=3ds+bios+apk'. This indicates the document's primary purpose is to redirect the user to potentially harmful content. Additionally, the PDF was flagged for containing a mass external PDF link farm, suggesting a broader campaign to distribute malicious links. No scripts were extracted from this sample.

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=3ds+bios+apk
    • http://files.atplanned.com/uploads/1/3/1/6/131636834/9536202.pdf
    • http://files.mgle-germanschool.org/uploads/1/3/2/8/132814898/4323125.pdf
    • http://files.match-gems.com/uploads/1/3/0/9/130969243/waruxe-gibotusupuwe-viputefetapaj-walugogigebomev.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6944/files/54621542059.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/jalagaji.pdf
    • https://cdn.shopify.com/s/files/1/0436/9747/1656/files/zozezajaxiniwus.pdf
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/nipavimofekedigopir.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8281/files/98918613248.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdf
    • https://cdn.shopify.com/s/files/1/0433/3672/8744/files/papotujiwavo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/1280493251.pdf
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/vamekekes.pdf
    • https://cdn.shopify.com/s/files/1/0432/0870/4164/files/zivaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6419/7273/files/rezisuginomelakoza.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8544/files/1819013652.pdf
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/fivixikefu.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_off00005f1b.bin
36796c2ffbee9de95a55e58afd2808fbda103b4f95b6a8947adeedc9da20b507		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 5100 bytes
font_01_sfnt_off0000707b.bin
eacd4570ec0e00a9119bfbef7ce500d0c5280400fe3fad81717995b6e1c50037		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707B 10244 bytes

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