Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5840280a089c79…

MALICIOUS

PDF

50.3 KB Created: 2020-08-20 01:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1315c59d103c2ca9b297706884f232e SHA-1: d3d6d93c3ba11d24413984c928dbb8c849bf3bfa SHA-256: 7d5840280a089c7985a0e08f1d23723ea6ed1404fd68fc34185ebc95ad44b00b
130 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=colosseum+guided+tours'. The document also exhibits characteristics of a link farm, with numerous links to Shopify-hosted PDFs. The presence of urgency lures suggests an attempt to trick the user into clicking these links. No scripts were extracted, but the primary attack vector appears to be redirection to malicious sites.

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=colosseum+guided+tours
    • http://bomapata.learningindigitalera.com/uploads/1/3/1/8/131871590/44a10f5ee674.pdf
    • http://files.flowstrengthgym.com/uploads/1/3/1/8/131871605/a0621d8d8336.pdf
    • https://cdn.shopify.com/s/files/1/0435/2462/0447/files/40316363706.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/zibogow.pdf
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/free_party_invitation_templates_to_print.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/oceanofpdf_website_down.pdf
    • https://cdn.shopify.com/s/files/1/0459/9385/3087/files/alertmanager_default_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/13467710671.pdf
    • https://cdn.shopify.com/s/files/1/0436/1263/5298/files/39567984197.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7980/files/dvt_treatment_guidelines_elderly.pdf
    • https://cdn.shopify.com/s/files/1/0433/8830/5575/files/70195229948.pdf
    • https://cdn.shopify.com/s/files/1/0437/7188/7767/files/10403107110.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/bowujinanerenikujawanakez.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b31.bin
e6944d40fcba052d0c008ecc2ae6e70faec6327b4a9267e91c2cb438fdddae5f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B31 4736 bytes
font_01_sfnt_off00008b4e.bin
4394cd755aaca378173d36e29804dbe8b9392bce5200af006b6c4d3333b47e6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4E 10128 bytes
font_02_sfnt_off0000adf6.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xADF6 4324 bytes