Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4daf10829acd3b5…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 07:29:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56c4bce716550742c3d45ca97fc64ff3 SHA-1: 7b8b7023190bdce4287f18af9e48daf4db37d856 SHA-256: f4daf10829acd3b5c3e033f96750aa36353ab81e371e78d89cbc5d57caa7bba8
148 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Bernina bernette 715 manual' and includes the malicious URL, suggesting a lure to a phishing or scam site. The presence of urgency and callback lures further supports this assessment.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=bernina+bernette+715+manual
    • http://files.spsplusarchitects.com/uploads/1/3/1/4/131454523/fasulexawab.pdf
    • http://gepirakus.tottieaarvold.com/uploads/1/3/2/6/132683014/sopetasajoxa-seladanoge-pitekiloneda-lorudenar.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/91126567197.pdf
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/lebimuxek.pdf
    • https://cdn.shopify.com/s/files/1/0434/9414/6200/files/93935713031.pdf
    • https://cdn.shopify.com/s/files/1/0450/4656/2966/files/tesis_sobre_alimentos_transgenicos.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/96241006414.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/46253559258.pdf
    • https://cdn.shopify.com/s/files/1/0431/4264/3868/files/65993303606.pdf
    • https://cdn.shopify.com/s/files/1/0437/1775/5034/files/bitcoin_que_es.pdf
    • https://cdn.shopify.com/s/files/1/0438/5252/9829/files/sapemibakodekitopom.pdf
    • https://cdn.shopify.com/s/files/1/0436/1352/0029/files/xekemorurevirulivevi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/sadaxinexalekikowiwe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9387/7145/files/something_anything_nothing_exercises.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_off0000609d.bin
9708fcaefa3ac73ceb3496be75c1089dd43a7dbbd38374eb038a0952ee568d66
pdf-font-stream PDF embedded font (sfnt) at offset 0x609D 5100 bytes
font_01_sfnt_off000071ed.bin
7ebff8f0b8c44733287228a10285a47216ef926447a0666828754b591f081c29
pdf-font-stream PDF embedded font (sfnt) at offset 0x71ED 10564 bytes