Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2776dca5b5f318d…

MALICIOUS

PDF

48.2 KB Created: 2020-08-24 16:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0feda618608bb82720f9c186d7c4081 SHA-1: 2695697338742091c1c0be30c7ebd7997ec95c10 SHA-256: f2776dca5b5f318daedb5a03f641e31cee08b17237887c1c2e0e50d0ca2a39e7
130 Risk Score

Malware Insights

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

The PDF contains a link farm with 30 external PDF links, many hosted on cdn.shopify.com, and one critical heuristic firing indicates a malicious redirector link to 'ttraff.com'. The document body also contains the same malicious URL, suggesting a lure to download potentially malicious content. The presence of a visual download button further supports this phishing-like attack pattern.

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.com/pify?keyword=sbi+anywhere+apk+apkmirror
    • http://fufen.conservatoryblindsexpress.co.uk/uploads/1/3/1/1/131163772/wodisupof.pdf
    • http://gebabulo.cinderellacares.org/uploads/1/3/1/4/131453698/7161054.pdf
    • http://files.aquaclearpx.com/uploads/1/3/0/7/130740573/xufagokotekitewu.pdf
    • http://files.julietteyoga.org/uploads/1/3/2/6/132681316/7414463.pdf
    • https://cdn.shopify.com/s/files/1/0431/8098/2434/files/80690783747.pdf
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/xitikusepepasoboxibig.pdf
    • https://cdn.shopify.com/s/files/1/0436/6978/2693/files/vonubetusimavorupinax.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/febubajobagorudipaxevut.pdf
    • https://cdn.shopify.com/s/files/1/0434/2222/0439/files/adobe_illustrator_chinese_fonts.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/96975252488.pdf
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/morph_mod_1._8_9.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1637/files/42479549430.pdf
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/wokanemanevurilo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6507/4086/files/verepalunemajodekigitiziw.pdf
    • https://cdn.shopify.com/s/files/1/0429/3636/9318/files/67901361271.pdf
    • https://cdn.shopify.com/s/files/1/0462/5183/5543/files/amritsar_shatabdi_platform_no.pdf
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/10366719258.pdf
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/atomic_structure_chemistry_ncert.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/
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/febubajobagorudipaxev

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000717d.bin
bcf2126e3d7fbc5041a15527205db4e4a23e3143f8468b023f49ff064732c88d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717D 5060 bytes
font_01_sfnt_off00008281.bin
377f08a485701160f50710fe921bb9157b094ba766794c0b8d86a39cbdb285c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8281 10320 bytes
font_02_sfnt_off0000a556.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA556 4324 bytes

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