Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e6fb9b38bc776ea…

MALICIOUS

PDF

48.1 KB Created: 2020-08-12 21:03:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98a74d372b2515bc38c00780a81e3c76 SHA-1: df9afab5dc60560aaaa279f1733620be20071767 SHA-256: 9e6fb9b38bc776eafcbd46268434dbb051bcaf0d42d7bc8da4c7703dfc62be5b
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL is https://ttraff.cc/pify?keyword=definition+of+religion+by+different+scholars+pdf, which likely leads to a malicious payload. The document body, though partially corrupted, contains references to the PDF content and the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=definition+of+religion+by+different+scholars+pdf
    • http://files.buyinbr.com/uploads/1/3/1/0/131070161/90042b.pdf
    • http://xivek.mastergardenersmecklenburg.org/uploads/1/3/1/4/131453046/vobesuparu.pdf
    • http://files.homeworshipping.com/uploads/1/3/1/4/131482941/7b86483dfc.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7303/files/44938314266.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1195/files/uniden_bc75xlt_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/94150510439.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/xurepijazinajoriwuxize.pdf
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/nogojafagejekofesibij.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/56342328129.pdf
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/veledigofaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/figamopalutitajak.pdf
    • https://cdn.shopify.com/s/files/1/0438/9853/6091/files/nomenclatura_de_disacaridos.pdf
    • https://cdn.shopify.com/s/files/1/0434/2661/1357/files/riesgo_relativo_y_razon_de_momios.pdf
    • https://cdn.shopify.com/s/files/1/0428/5199/1719/files/25496564546.pdf
    • https://cdn.shopify.com/s/files/1/0430/9785/0017/files/vupegaje.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/aprendizajes_clave_tercer_grado_primaria.pdf
    • https://cdn.shopify.com/s/files/1/0439/8225/8334/files/20226573760.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070eb.bin
7147223bc3e657e0ef3d7be212018db23c4a772af03473ba2ead18742d19dd52
pdf-font-stream PDF embedded font (sfnt) at offset 0x70EB 5448 bytes
font_01_sfnt_off00008367.bin
09d2467105f7010ff3c80726e85c147dbd917849e92812c71386fbf0c069ba66
pdf-font-stream PDF embedded font (sfnt) at offset 0x8367 9896 bytes
font_02_sfnt_off0000a52a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA52A 4324 bytes