Malicious PDF — malware analysis report

Static analysis result for SHA-256 db2de98c7b01fe26…

MALICIOUS

PDF

115.2 KB Created: 2020-08-03 11:33:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c834ec87e834f6cbcc5bae6eb0b5ee05 SHA-1: e62f59783ea398d550fdf1a4057d6ba8ea7ec451 SHA-256: db2de98c7b01fe2660e92055c92cea030e1a2f5ddd90d7f39c3d990c7ed56062
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, creating a link farm. One critical heuristic indicates a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary purpose is to direct users to malicious infrastructure. The presence of SEO-related heuristics further supports the idea of a lure to a 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.com/pify?keyword=central+african+republic+conflict+pdf
    • http://files.emilysweeney.net/uploads/1/3/2/6/132696414/runogasowomepig.pdf
    • http://files.rajanholidays.com/uploads/1/3/1/6/131637257/rusavukaparimotuf.pdf
    • http://files.artofdapper.com/uploads/1/3/1/0/131070178/89670225cbe.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/dazzle_dvc_100_software_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/19582100708.pdf
    • https://cdn.shopify.com/s/files/1/0433/5783/1326/files/xegosotivibisabegibolu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4588/7905/files/61409727229.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lunizededalusabunis.pdf
    • https://cdn.shopify.com/s/files/1/0447/9575/6693/files/price_action_trading_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xiguxalenagidofivixonagez.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/zoruxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/60658066115.pdf
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/duxijosesuxukatiwe.pdf
    • https://cdn.shopify.com/s/files/1/0440/4481/2438/files/39340696537.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/95214867568.pdf
    • https://cdn.shopify.com/s/files/1/0430/1396/3939/files/46201507991.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_off000185a1.bin
d51ee4e463be917f2fbd8e98159017b2049632212338b8fedc290c69d3df6a32
pdf-font-stream PDF embedded font (sfnt) at offset 0x185A1 5016 bytes
font_01_sfnt_off000196b6.bin
ec2922e4bb5538627551b2a15a88e29a081d14ef09d1faf366aee3cb0362b50c
pdf-font-stream PDF embedded font (sfnt) at offset 0x196B6 12428 bytes