Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1799ab360041146…

MALICIOUS

PDF

42.5 KB Created: 2020-08-11 13:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 501ba73b40d4c6d25ec31eff092eb98c SHA-1: 6ac68ba5b854e6831f88f51619ca5f11b9d31f4b SHA-256: e1799ab360041146f1065ebbff1a6318e241ed195f14658484cf34a9110208be
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for 'robotics engineering for beginners pdf'. This link, `https://ttraff.com/pify?keyword=robotics+engineering+for+beginners+pdf`, leads to known malicious infrastructure. The document also exhibits characteristics of a link farm, embedding numerous other PDF links, likely to manipulate search engine results or distribute further 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=robotics+engineering+for+beginners+pdf
    • http://files.royalreadsandreviews.com/uploads/1/3/2/6/132695258/5761173.pdf
    • http://files.splitridgerockies.com/uploads/1/3/1/6/131636814/vekiwak.pdf
    • http://wavope.thefrenchnurserycapetown.com/uploads/1/3/2/6/132696323/ridupubunewipi_zajeravow_jivukuwiza_xelufopu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/32824067844.pdf
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/32907421049.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9588/files/46790121973.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8274/files/fejifogewipesupolafewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8377/5643/files/gun_soul_gungeon.pdf
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/93038521071.pdf
    • https://cdn.shopify.com/s/files/1/0428/5743/1196/files/simpson_260_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7186/4993/files/24709164630.pdf
    • https://cdn.shopify.com/s/files/1/0434/4971/2807/files/kanafirefolaxaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/5458/0390/files/algebra_2_homework_practice_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0432/6345/9496/files/kerurekulabab.pdf
    • https://cdn.shopify.com/s/files/1/0436/0614/7230/files/57920460069.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_off00006959.bin
34e04991a9b3ba17bb6192ce6f9f3b363e1ad087670a98e84d8a7de76c7cdb0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6959 5228 bytes
font_01_sfnt_off00007b28.bin
dfcf5c277fac92785106b46dfc1a169e68a0694fc4bc77d33c320725a1bff88b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B28 10012 bytes

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