Malicious PDF — malware analysis report

Static analysis result for SHA-256 a78ddc07e090aa76…

MALICIOUS

PDF

43.9 KB Created: 2020-08-08 15:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d1b67f20c74a1600658aeea454c524f SHA-1: f830689c44c769d4260a2382dd48be96c9f54fda SHA-256: a78ddc07e090aa767c8a7568d93356f1ab08e9d37f7a4c9b05f7770a765eadb1
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is further supported by the presence of a link farm pointing to numerous external PDFs. The primary malicious URL, https://ttraff.cc/pify?keyword=cracking+the+bible+code+pdf, is likely used to redirect users to a phishing or malware distribution site. The document body contains obfuscated text and references to the redirector URL.

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=cracking+the+bible+code+pdf
    • http://jagazok.hangarmom.com/uploads/1/3/0/7/130776791/7648035.pdf
    • http://files.sharpiepresents.com/uploads/1/3/1/3/131381006/zipojefalipimi.pdf
    • http://torozago.greatscottideas.com/uploads/1/3/0/7/130739704/6010c6f3d3ae5.pdf
    • http://files.interiordimensionsnw.com/uploads/1/3/1/3/131383657/b41c5.pdf
    • https://cdn.shopify.com/s/files/1/0432/2308/9307/files/kuhnhausen_1911.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mozinetesabelenigifil.pdf
    • https://cdn.shopify.com/s/files/1/0430/9476/9821/files/20483994116.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/juvofosopozabos.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/lalopilitubebotib.pdf
    • https://cdn.shopify.com/s/files/1/0437/6579/2929/files/foerster_algebra_1.pdf
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/31772291363.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/niwoponegasidutiwiba.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/58617670148.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4760/files/world_painted_blood_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0428/9753/9231/files/modern_compressible_flow_with_historical_perspective.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_off00006900.bin
19f7331f3e8b6b7f6ea46007a8d3d62f7ba26625943186e79dc7bce158c623ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6900 5348 bytes
font_01_sfnt_off00007b25.bin
0fc04122e28d73d6dabd8589941b6ee100cdb6591b043f80149d1199a96cb672		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B25 12216 bytes

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