Malicious PDF — malware analysis report

Static analysis result for SHA-256 f46cdc343fcc0eb6…

MALICIOUS

PDF

47.8 KB Created: 2020-08-26 02:24:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 765780de8690b001e9f66dee71e9eac5 SHA-1: e274ace6263d4a57b99d9d4c77a3d1e1630c1244 SHA-256: f46cdc343fcc0eb6946c002e198cc65eb323b8639bb0bc1b0a4f864e697e581d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=ap+language+multiple+choice+practice', is designed to redirect users to malicious infrastructure. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary intent appears to be luring users to the malicious redirector.

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=ap+language+multiple+choice+practice
    • http://files.hestonwest.org/uploads/1/3/1/4/131483143/xigazudarilevofido.pdf
    • http://panilagag.writespacejerusalem.com/uploads/1/3/1/3/131380213/6c2ab169e6e.pdf
    • http://files.haywoodclub.org.uk/uploads/1/3/1/3/131381612/fapuv.pdf
    • http://xeluxo.art63lynch.com/uploads/1/3/2/6/132695278/dedobegimovo_gibobelegotise_fusiruwufazom.pdf
    • http://gagafon.liquidlightbodyworks.com/uploads/1/3/1/3/131398020/gimem.pdf
    • https://cdn.shopify.com/s/files/1/0466/6694/0581/files/types_of_vertical_axis_wind_turbines.pdf
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/78061039370.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/93227265685.pdf
    • https://cdn.shopify.com/s/files/1/0430/6481/9874/files/22743457609.pdf
    • https://cdn.shopify.com/s/files/1/0431/9258/2293/files/6234072372.pdf
    • https://cdn.shopify.com/s/files/1/0452/0984/5911/files/black_spiderman_hd_wallpaper_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/dunegufidosotujusupexe.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/murinifidexikoxepubo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8522/6403/files/back_cross_and_test_cross.pdf
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/miwiluwirupabapunerovelu.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_off00007cd1.bin
ca1b812f10578ff3db50ad3111229b752eacb3bc740d760b5e6fc9175c89f44e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD1 5160 bytes
font_01_sfnt_off00008e2c.bin
76390930e03eb8ac386b3f5391f8e7bf00d308340de033c1d42c920f5c5aea97
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2C 10668 bytes