Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00f6a002c10e531…

MALICIOUS

PDF

40.6 KB Created: 2020-08-31 01:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 089172b2d9e7bc254e149ae9c252d0ec SHA-1: da2099ec3bd20c0c2d630483868024220701a41b SHA-256: d00f6a002c10e53138d78e678df1844b60386e643a2320a9643e4dce70cb8eff
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body also contains text related to 'Netflix lost in space season 2', suggesting a lure to entice users to click the malicious link. The presence of numerous PDF links, many pointing to Shopify domains, indicates a link farm strategy. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=netflix+lost+in+space+season+2
    • https://cdn.shopify.com/s/files/1/0438/4283/0496/files/fuwiged.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24810932871.pdf
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/avengers_infinity_war_bengali_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0437/5927/2090/files/75816058345.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/dugeno.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/rulazevu.pdf
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/puvoworedoki.pdf
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/351170654.pdf
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/arunagirinathar_movie_songs_in_masstamilan.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad32f1790ac84b249115abf8fa40ad1a.pdf
    • https://static.usrfiles.com/ugd/4b68be_d5d9e48a93804eafb73212330f2eab5c.pdf
    • https://static.usrfiles.com/ugd/79e5df_d960e9b9684d4b478d559401befa91ec.pdf
    • https://static.usrfiles.com/ugd/97368a_d0066bf81299449ea8c9499381261796.pdf
    • https://static.usrfiles.com/ugd/6c98bc_7ebe471065bd4952a5a2660903c5d377.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/rimozijupovuvorelerariw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0492/7905/files/6722362290.pdf
    • https://cdn.shopify.com/s/files/1/0434/5944/4889/files/81009069126.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/60375173719.pdf
    • https://cdn.shopify.com/s/files/1/0460/3284/7012/files/62684804376.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_off0000613d.bin
98c684afdfb86da2f44d627b3a7b5c3769401eb2d1bc00e356243a3c66a3df54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x613D 5084 bytes
font_01_sfnt_off000072a9.bin
38b15cfbea7ffbf8db2b0a3e0ab4370341e34525c78e485c236c22bf10a124a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A9 10192 bytes

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