Malicious PDF — malware analysis report

Static analysis result for SHA-256 44156a6b45c2cf7a…

MALICIOUS

PDF

44.6 KB Created: 2020-09-11 08:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7df2d47326c2fb25f62e8efec689016c SHA-1: 72486ddc57884ce4f48eda712f4a7a099f6141d1 SHA-256: 44156a6b45c2cf7a13a31174b4dab54e48612a9c29b9958a9a5f16ddf603fadc
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/pify?keyword=bingo+live+for+pc+free'. This URL is embedded within the document body, alongside a large number of other PDF links, suggesting a link farm for SEO manipulation or to distribute malware. The document body text, though heavily obfuscated, contains the same lure phrase as the redirector URL, indicating an attempt to trick users into clicking the link for a fake download.

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.link/pify?keyword=bingo+live+for+pc+free
    • http://files.graemation.nz/uploads/1/3/2/7/132740291/mukek-kuriposivuw-pesinu.pdf
    • http://puben.hsrcfc.com/uploads/1/3/1/0/131070374/1758980.pdf
    • http://files.barbechamblissauthor.com/uploads/1/3/0/7/130740563/3626560.pdf
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/9500912351.pdf
    • https://cdn.shopify.com/s/files/1/0432/2168/0283/files/elatus_era_safety_data_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0451/7157/2885/files/sodakawuwavetakebo.pdf
    • https://cdn.shopify.com/s/files/1/0436/7450/1273/files/77548407893.pdf
    • https://cdn.shopify.com/s/files/1/0461/9426/2166/files/city_and_colour_runaway.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/zopezumaropemafeleke.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/20371899561.pdf
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/conjunciones_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/4256304635.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/8400561450.pdf
    • https://static.usrfiles.com/ugd/efc97f_83ebff6e5f9245f18d6a442a8c3b5fce.pdf
    • https://static.usrfiles.com/ugd/0e2875_f5ba3536e9644ef098082b138349ba57.pdf
    • https://static.usrfiles.com/ugd/ed2d23_9795c35294d44de98cc2316d848d2b01.pdf
    • https://static.usrfiles.com/ugd/cdfdba_dc10d41f94b84fb9a9138ea27e6ba8c2.pdf
    • https://static.usrfiles.com/ugd/479fa9_06d122179eed47ca8e376c7d7e016280.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_off000071d8.bin
b36152f70bff6c3987c6c4799c51e3063876ecc07d644820fbe78e7bf5ad953e
pdf-font-stream PDF embedded font (sfnt) at offset 0x71D8 4904 bytes
font_01_sfnt_off000082b0.bin
2bc121e7179ef2c44b449acce4ec85926ef0b2221b7284f86c1bf9a00ddb540d
pdf-font-stream PDF embedded font (sfnt) at offset 0x82B0 10128 bytes