Malicious PDF — malware analysis report

Static analysis result for SHA-256 08dacd594af29411…

MALICIOUS

PDF

43.6 KB Created: 2020-09-10 01:00:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b7a0cdcb8ee127a83baa7f5f3b25113 SHA-1: e295fc887f24dad4cb9e0b4715f87b768450fbca SHA-256: 08dacd594af294118d3c1c3ebbdd1aebee8d79f830449f61a3ae80faa57c898f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'ttraff.link' domain. The document body, though partially corrupted, includes the same suspicious URL, suggesting an attempt to lure users into clicking it under the guise of a game download. The presence of numerous external PDF links further supports the 'link farm' heuristic, indicating a likely phishing or malware distribution scheme.

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/pify?keyword=turbojet+airplane+simulator+game
    • http://files.thecathedral.us/uploads/1/3/2/8/132815220/2816990.pdf
    • http://files.en.220stopinjposevno.com/uploads/1/3/1/6/131606069/2059752.pdf
    • http://files.shannoncooney.site/uploads/1/3/1/4/131437377/ffe1c7b38.pdf
    • http://kijegu.suracipaintingllc.com/uploads/1/3/0/8/130873843/d724956.pdf
    • http://rukezuwot.contigodevelopment.com/uploads/1/3/0/7/130775320/6487450.pdf
    • http://mabixog.thewoodswander.com/uploads/1/3/0/8/130815017/zobigifunifime-katopip-dogexuwukurabi.pdf
    • http://files.thesassytomato.ca/uploads/1/3/1/4/131455543/a1912580da34.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/cfbfd2_cca95c89e7e44965af850f082595bb56.pdf
    • https://static.usrfiles.com/ugd/b8c837_c5e2d96e8b664eca90f671195c5a7cb4.pdf
    • https://static.usrfiles.com/ugd/b58d21_9a55842d21264a28bf8d35611a1f8a76.pdf
    • https://static.usrfiles.com/ugd/79e0dc_a3b459a9b30348f2abe284cbe70ef75b.pdf
    • https://static.usrfiles.com/ugd/575363_455715da2d1843aea4167998cfd35d1b.pdf
    • https://static.usrfiles.com/ugd/0df15e_4e6dc9b5d4394b0daa12e345591771b1.pdf
    • https://static.usrfiles.com/ugd/98e298_56d81656727541f6a604a9ef5dd81da9.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006342.bin
34aedf6024582c0485d4409276d3d8cbb97d6befcfdf3b15b1fc49405bb1b928		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6342 5304 bytes
font_01_sfnt_off00007536.bin
b4e4c7385820d29d03154093e683e57a86427aaf6a5813f9e4b107b7698ec2e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7536 10772 bytes
font_02_sfnt_off000099e8.bin
5095ccdfdd328c3f25b1766e9c65bca58fa839170fcb9f3db3c20e130d955aff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99E8 1736 bytes

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