Malicious PDF — malware analysis report

Static analysis result for SHA-256 22de2b360b06ce66…

MALICIOUS

PDF

39.4 KB Created: 2020-08-23 21:48:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a0026b0d237651b51bcbc8d9a4a015f SHA-1: 4dd6eefa06e796d84a873c3a8e0962ab42a17629 SHA-256: 22de2b360b06ce66cf1c42fcde241b48fb1dbbc104661cbe3732b598f60cbf89
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which are part of a link farm designed to appear as legitimate content. One prominent link, presented as a movie download lure, redirects to the malicious URL https://ttraff.ru/pify. This indicates a social engineering attack aiming to redirect users to potentially harmful content. The presence of a visual download button further supports this social engineering pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=the+amityville+horror+movie++dual+audio
    • http://files.jancancan.com/uploads/1/3/1/4/131406413/sosazidisajawaj-ledosol-vaxodavuv-ziwobedomanefon.pdf
    • http://files.oscfc.org/uploads/1/3/0/9/130969742/63bfa09f5.pdf
    • http://kidadames.backontrackchiropractic.com/uploads/1/3/1/4/131453723/pokowozu-buvakilavo-memakafopexebo-fuzigifese.pdf
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/introductory_mathematical_analysis_14th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdf
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/characteristics_of_audio_visual_aids.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/5035320675.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/ziwenopanefasanidagedi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2962/4982/files/zedozozonarimifefimimope.pdf
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/taxi_driver_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/9696/5269/files/20214410718.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/varisegeb.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_off00005c5e.bin
ef9123567d92fe6c6bab04a2101f0a992f702a6523beb26483b1ec4e082ed167		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5E 5000 bytes
font_01_sfnt_off00006d44.bin
831372c062aa9984829f54428e6d73168328496b9285c101e00f636351c07599		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D44 10404 bytes

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