Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0dd68279523c505…

MALICIOUS

PDF

33.9 KB Created: 2020-09-02 21:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41bb503df8fda22273a24e20e377e30f SHA-1: f58e75566b7c396e6bce1db778cf6f2f23e1a568 SHA-256: f0dd68279523c505ea9e853a4a2e48b2a3d4da1d72719ba901e35462178d746f
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive document body masquerading as a Kelvinator air conditioner manual. It embeds numerous links, with a critical heuristic identifying a link to a known malicious redirector at `https://ttraff.club/wix?keyword=kelvinator+air+conditioner+manual+6711a20012m`. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The presence of a large number of external PDF links also suggests a link farm for SEO manipulation or traffic redirection.

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.club/wix?keyword=kelvinator+air+conditioner+manual+6711a20012m
    • https://cdn.shopify.com/s/files/1/0433/8650/3326/files/jonebujepawasu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9133/6099/files/24191402448.pdf
    • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/79317017192.pdf
    • https://cdn.shopify.com/s/files/1/0436/3167/3504/files/jupyter_notebook_cheat_sheet_github.pdf
    • https://cdn.shopify.com/s/files/1/0430/1229/2767/files/16963264692.pdf
    • https://cdn.shopify.com/s/files/1/0433/5301/4423/files/cinematography_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/9970/7810/files/resume_format_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/lista_de_valores_y_antivalores_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/92469583303.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/3129642145.pdf
    • https://cdn.shopify.com/s/files/1/0434/2281/0263/files/barigo_barograph_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9121/files/85024190597.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/emulator_8086_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/papidif.pdf
    • https://cdn.shopify.com/s/files/1/0437/9715/1904/files/76007893617.pdf
    • https://cdn.shopify.com/s/files/1/0441/3403/9704/files/gepewuwigetuwi.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_off00004741.bin
dd16c7c58cea314f1d15c9506695c958766691fbbc649a583f440b2b79b06ded		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4741 5496 bytes
font_01_sfnt_off000059f6.bin
06dfb6bee51e4f5faac91ba97fede317b5b93f21ce3e881cabaf208fcc818138		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F6 9560 bytes

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