Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9096481a0032815…

MALICIOUS

PDF

68.4 KB Created: 2020-08-10 01:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03b41f81ff064b98da11c41baf495bce SHA-1: 46fb38b9a3d6f50dd857f67c6bc13a80dce5e2bd SHA-256: e9096481a0032815d9d181517e268fc98983c7d2dd1bc7b17cb2016c2a984750
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'pathophysiology of heart disease pdf free' and the malicious URL itself. This suggests a phishing or scam attempt where the user is tricked into clicking the link, which then redirects them to potentially harmful content. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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.cc/pify?keyword=pathophysiology+of+heart+disease+pdf+free
    • http://files.pittdanceensemble.com/uploads/1/3/1/4/131437379/07ac74ef34b5987.pdf
    • http://files.robroymcfarland.com/uploads/1/3/0/8/130814411/dovasinima.pdf
    • http://files.towncreekvision.com/uploads/1/3/0/7/130775357/feduku.pdf
    • http://files.theautistix.com/uploads/1/3/1/3/131383493/5396332.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68906731860.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/73965710110.pdf
    • https://cdn.shopify.com/s/files/1/0438/3634/2434/files/88924226555.pdf
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/nursing_resume_new_grad.pdf
    • https://cdn.shopify.com/s/files/1/0433/7529/6670/files/42925751904.pdf
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/23687454797.pdf
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/bse_odisha_geography_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/rezatepusabasepazobijoxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/gowetimukomejeda.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/wejebitonuwanelexobadag.pdf
    • https://cdn.shopify.com/s/files/1/0433/8132/5978/files/xuzel.pdf
    • https://cdn.shopify.com/s/files/1/0435/6567/8755/files/dikogorijudumudevurit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/carcinoma_basocelular_infiltrativo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1984/4258/files/77599053413.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_off0000cc2f.bin
651c420f759dd0e1153759a4770b3cef1883d2c761be0821e414942bef48bc85
pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2F 5408 bytes
font_01_sfnt_off0000de97.bin
a222ac98326169d89ccc8cf218c39d15b8f9f2a1d3b86cc7c5518b78900553a1
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE97 10952 bytes