Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fe2804a927fd6a6…

MALICIOUS

PDF

48.8 KB Created: 2020-08-06 21:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d7de9b1d69569fa9bc27f93f01979811 SHA-1: 669d4c92f72eeb0f5f2de64387f9bc841f89bb0a SHA-256: 3fe2804a927fd6a60fd12d3b35f403fdd5546b590b7cb29e18089998d4e3d826
128 Risk Score

Malware Insights

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

The PDF contains a lure related to a 'Bin sachivalay clerk syllabus 2020 pdf in gujarati' and includes a call-to-action button. It embeds numerous links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=bin+sachivalay+clerk+syllabus+2020+pdf+in+gujarati'. This redirector is likely used to funnel victims to further malicious content. The document also contains a large number of links to PDFs hosted on Shopify, which is indicative of a link farm for SEO poisoning or traffic generation.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=bin+sachivalay+clerk+syllabus+2020+pdf+in+gujarati
    • http://lijeg.amybournephotography.com/uploads/1/3/1/4/131437462/lidolej-pexubabakufesi.pdf
    • http://donewi.mansfieldacres.com/uploads/1/3/1/6/131636655/xuposikexali-davelukugozanet-pawufo-depobaso.pdf
    • http://files.reederschurch.org/uploads/1/3/0/7/130775462/vazudopalore-xabaruvami-nokizawinoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/jodojere.pdf
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/30876008699.pdf
    • https://cdn.shopify.com/s/files/1/0434/2962/6013/files/20461915346.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/raxuwileguwujubafejitodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0141/files/bijaxozijurinogutela.pdf
    • https://cdn.shopify.com/s/files/1/0433/6405/7238/files/rifawapediduzuxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4796/8149/files/36949782205.pdf
    • https://cdn.shopify.com/s/files/1/0439/9867/5102/files/maths_practical_book_for_class_10_cbse.pdf
    • https://cdn.shopify.com/s/files/1/0434/8100/6246/files/wolfcraft_router_table.pdf
    • https://cdn.shopify.com/s/files/1/0434/6091/9446/files/dajenaniwovuxikunedagumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/rent_agreement_format_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/dodofulavomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/wujuvuzagenubibalumudiz.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_off00007d2b.bin
c7ff417d869853116fcaa842655ca319de255764a3bee63bc05977bca0dcb727
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2B 6180 bytes
font_01_sfnt_off00009246.bin
2a5f237fae320757c5af35202da88a004342ed1a4d46d396222cd709c4b20eeb
pdf-font-stream PDF embedded font (sfnt) at offset 0x9246 10424 bytes