Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d8a46e460a1d67…

MALICIOUS

PDF

46.7 KB Created: 2020-08-21 18:41:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 332d555da6e7b21461d494690bf8ad1b SHA-1: a9bc5f97a4114af6c83dce8f0d7f2a9125a71fca SHA-256: 00d8a46e460a1d670fe20145ee600421864b1d022e599b3a705fb4486288543e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a malicious redirector link, `https://ttraff.cc/pify?keyword=interview+about+yourself+sample+pdf`, which is likely used to obscure the final destination. The document also contains a lure for remote support tools, suggesting a social engineering tactic to gain user trust or access. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/pify?keyword=interview+about+yourself+sample+pdf
    • http://files.newdirectionsconsulting.org/uploads/1/3/0/7/130740213/48688b463a72c40.pdf
    • http://dirudiko.circuitsutra.com/uploads/1/3/2/8/132815793/zuzufupotegi_tikeguke_fogekixovu.pdf
    • http://files.clevelandpropshop.com/uploads/1/3/0/7/130776401/2940218.pdf
    • http://files.mail.cantoncommunityfund.org/uploads/1/3/2/6/132695692/5e16c.pdf
    • http://newotexib.thesugarshackofboilingsprings.com/uploads/1/3/1/4/131453540/titiwerifo_geliwukuxi_savilu_fedasuwuduralim.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/4831/2736/files/letituwemewonadigutumu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0602/5128/files/devoxibatuzosuzivubavu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/53883968186.pdf
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/71366188255.pdf
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/sony_vegas_pro_14_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/work_attendance_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1123/files/maldivian_democratic_network_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/benipawotolufojonujorotu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9259/9193/files/biceps_strain_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/fuwotoxinofomiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/4645/9809/files/mazixomokif.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_off000078f7.bin
a7b1c636446fb30c24d63bdaa9a07f10dd72a8786730e713c6d5fa88771575da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F7 5520 bytes
font_01_sfnt_off00008bae.bin
83fad98393cd47478101a921a84db64c45b13ed999f3f1fc5b02c4933013e8c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAE 9884 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.