Malicious PDF — malware analysis report

Static analysis result for SHA-256 431212c7ff805d63…

MALICIOUS

PDF

69.8 KB Created: 2020-08-02 12:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81847f29a44c09d3b96aaf6bd7074fd0 SHA-1: 96d20cbcf9594ec579b15ec09c6e3c645c49e582 SHA-256: 431212c7ff805d63f31d37e721ec081514d9383eebfab9c97f518f3aefaa1668
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=suzuki+bandit+1250cc as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, with the first being https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdf. The document body contains text related to a Suzuki motorcycle and also includes the malicious URL, suggesting a lure to a potentially malicious site.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=suzuki+bandit+1250cc
    • http://files.banchoryeastchurch.com/uploads/1/3/2/7/132710661/dd2e8307.pdf
    • http://files.pregnancycentergadsdencounty.org/uploads/1/3/0/8/130813975/mijefixomawu.pdf
    • http://files.milkywayfarms.net/uploads/1/3/1/8/131856770/3705256.pdf
    • http://files.foodfightdenver.com/uploads/1/3/1/4/131453260/tuzuvikozuwu-zubotufara-dajenoxasuw.pdf
    • http://files.nomadicsteve.com/uploads/1/3/1/4/131437538/42cb4690f8.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdf
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/litonipifagufinirixulusew.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15636630427.pdf
    • https://cdn.shopify.com/s/files/1/0438/0144/4512/files/12047870584.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/guponimobekoguraxiga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19085525902.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73792904944.pdf
    • https://cdn.shopify.com/s/files/1/0440/7027/3174/files/epsxe_sound_plugin.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/66680249909.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/97772791067.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/8533867769.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/39790235715.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/tkinter_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/1772/2280/files/17611858701.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a57c.bin
4adb84292d4994a19bb1b97882e604b518de93a434768d6b63c6cb1d49afd20d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA57C 5088 bytes
font_01_sfnt_off0000b6da.bin
dbc67bf312ccba831e14a8cae9c07c45ce09fa3fdb8666dbe6bad35930cf254b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DA 15616 bytes
font_02_sfnt_off0000e73d.bin
c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 16060 bytes
font_03_sfnt_off0000fbd1.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD1 4324 bytes

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