Malicious PDF — malware analysis report

Static analysis result for SHA-256 e68d1194f2e53985…

MALICIOUS

PDF

43.9 KB Created: 2020-08-20 06:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a52f3dc33e1f04866539cc8700cf5fac SHA-1: 26a4052cb277de8824e1e273c6078ab7f7a4d347 SHA-256: e68d1194f2e53985ebf7da25e127050f8e3e7968cab3c41ba7917ea2ea56ce7f
128 Risk Score

Malware Insights

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

The PDF contains a link to a redirector service (ttraff.cc) which is flagged as malicious. It also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains text related to 'Canon printer drivers for mac' and the malicious URL, reinforcing the lure. The presence of a 'download button' heuristic further supports the phishing pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=canon+printer+drivers++for+mac
    • http://mamodow.scouttrout.com/uploads/1/3/1/8/131857054/e3669e802.pdf
    • http://files.quadifyrc.com/uploads/1/3/2/6/132681495/pigogasug.pdf
    • https://cdn.shopify.com/s/files/1/0432/4173/4301/files/child_education_allowance_form_for_railway_employee.pdf
    • https://cdn.shopify.com/s/files/1/0433/7860/6229/files/64149472006.pdf
    • https://cdn.shopify.com/s/files/1/0447/1400/0540/files/physical_therapy_exercises_for_knee_arthritis.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/nulotupop.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/puzegagala.pdf
    • https://cdn.shopify.com/s/files/1/0433/9741/5077/files/nuxorudi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/tipping_point_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/2986/4343/files/multiplication_worksheets_grade_4.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51730359377.pdf
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/xoboliwagotibuwasales.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/19594525222.pdf
    • https://cdn.shopify.com/s/files/1/0435/4696/8218/files/41063493151.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_off00006d74.bin
ae7b8075304aa5e81975fc7a3ee3315ca1532ff792e64415f68cb2bd6ff1b183
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D74 5236 bytes
font_01_sfnt_off00007f2f.bin
78bf44b3a9ecd0147ff838138b914123c4bcf1bdaca4095598d32dc63e65571a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2F 10304 bytes