Malicious PDF — malware analysis report

Static analysis result for SHA-256 00741212f222efed…

MALICIOUS

PDF

44.1 KB Created: 2020-09-09 17:43:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24c648537b04871d2cfdd2ff1029df58 SHA-1: 05a1e7554e460261bef25e2c2f46afa7339cfa87 SHA-256: 00741212f222efed56846f86adf6c55262593eb5fef4360af403654985db3692
154 Risk Score

Malware Insights

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

The PDF document contains a link to a redirector service, which is a common tactic for distributing malicious content. The document body text and embedded URLs suggest a lure related to a visa lottery, aiming to trick users into clicking the malicious link. The ML classifier strongly indicated maliciousness, supporting the assessment of a phishing or malware distribution attempt.

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.link/wix?keyword=american+visa+lottery+form+2019
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_2aece23e0bf241e0ba480facdbc45ff5.pdf
    • https://static.usrfiles.com/ugd/e56fe2_bc6775c531824f3d8578be57da8db23a.pdf
    • https://static.usrfiles.com/ugd/bf650e_4d68990284264237911a803f68ffb96c.pdf
    • https://static.usrfiles.com/ugd/19103d_de30d8e9fc7f4729b1513968a9581b98.pdf
    • https://static.usrfiles.com/ugd/3f4b99_c54bc3027fce4948bf743f6a9de75460.pdf
    • https://static.usrfiles.com/ugd/bb13a2_d240af55b65040749ddca21c86e68afa.pdf
    • https://static.usrfiles.com/ugd/cc14e4_7d516b5e74fe40f4928f82305b7fa45d.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/wododowinavobaxazunuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/9289/2053/files/kejasudugijosuvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0766/files/zedenudinuvemag.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/11149068315.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/gizixonuduzokerububilon.pdf
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/72785610857.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/2009_brute_force_750_performance_parts.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5085/files/best_aeroplane_games_for_pc_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/67829120958.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d7f.bin
441a47f9d3902e2f87b7e426ce11627a82be6a4e20baa9e9d5362d7212d8868d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7F 5660 bytes
font_01_sfnt_off000080b8.bin
428570415b3e985456e9dac89f89edd7f5754d586e62e53adb73f452ff326003		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80B8 10212 bytes

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