Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bb049e8f80ddaaf…

MALICIOUS

PDF

73.4 KB Created: 2020-08-04 08:07:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb6490e3b3a5e3818a05a23337071f57 SHA-1: 42cc4b14be50414a54225b39b00b30f6d3abb4bf SHA-256: 4bb049e8f80ddaafad62c930e8671cacbd6acfe01e2f0ea25b6b6e099fde1981
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a 'Supreme court verdict on cauvery water dispute pdf', suggesting a lure to entice users to click the malicious link. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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.com/pify?keyword=supreme+court+verdict+on+cauvery+water+dispute+pdf
    • http://files.creativenationnonprofitcorporation.com/uploads/1/3/1/8/131856770/3242748.pdf
    • http://files.sbphotoshop.com/uploads/1/3/1/4/131453402/7da7e.pdf
    • http://files.nishanpress.org/uploads/1/3/0/7/130775795/vabixub.pdf
    • http://files.truetolifephotography.com/uploads/1/3/1/4/131482931/d2605f.pdf
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/99178310694.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/40044388519.pdf
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/fimudewojagafiwofezovun.pdf
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/72113724221.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdf
    • https://cdn.shopify.com/s/files/1/0428/5143/4652/files/xemadipuxamo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5967/files/centurylink_change_wifi_password.pdf
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/86866602069.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4885/files/vavatetujexan.pdf
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/83874224169.pdf
    • https://cdn.shopify.com/s/files/1/0440/5490/4997/files/convert_kindle_books_to.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.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_off0000e110.bin
58ddcf1e284c464c8fc23f97ed37014774f66b024e731a79c46e51cf7645c30c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE110 5624 bytes
font_01_sfnt_off0000f440.bin
a400c7ae2c6b5d6fdc3951c6ac39e26b0f3b97e2c25ad095b7e44567de20e995
pdf-font-stream PDF embedded font (sfnt) at offset 0xF440 10540 bytes