Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad8cb752725cf56…

MALICIOUS

PDF

36.3 KB Created: 2020-08-26 13:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9334ad179f8fbf6f356efd66f055e5ea SHA-1: 4a25679a4ffe865bbc531c147964238f10ceda66 SHA-256: 2ad8cb752725cf561656026035416501882a068680ea4c65c8ac9710af351a32
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=pathfinder+roleplaying+game+advanced'. This link is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, likely to manipulate search engine rankings or distribute further malicious content. The primary attack vector appears to be directing users to malicious infrastructure via a deceptive link.

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=pathfinder+roleplaying+game+advanced
    • http://files.dukesroyalguard.com/uploads/1/3/2/6/132683088/2193389.pdf
    • http://files.washingtonguideservices.com/uploads/1/3/0/7/130739443/joxanazimev-kuwefom-benuwo-vulunaxudedixu.pdf
    • http://files.14centsaminute.com/uploads/1/3/0/8/130813458/9687d.pdf
    • http://dutoziva.stacyboatman.com/uploads/1/3/1/3/131398278/180982.pdf
    • http://femopamo.scotsresearch.org/uploads/1/3/1/4/131437425/47090.pdf
    • https://cdn.shopify.com/s/files/1/0439/3422/0456/files/firofojupiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/4727/3116/files/xejiwifaman.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/ao_da_acetilcolina.pdf
    • https://cdn.shopify.com/s/files/1/0436/1430/6467/files/bnf_74_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/5678/9664/files/35722474330.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/34497366886.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/venexifamofabiwasarikowa.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/abeda_inamdar_junior_college_admission_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/4578203154.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_off00005034.bin
bfe4e5f482dfa2041b9f5313e2470a933c6e39b021b70694d13e9946b45d99ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5034 5556 bytes
font_01_sfnt_off000062f4.bin
75fdae2bc8b689a079a14c3972ec5e1f3c5b05fbabfcfb07107bad77996e9496		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F4 9824 bytes

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