Malicious PDF — malware analysis report

Static analysis result for SHA-256 228eca4bca2db0b6…

MALICIOUS

PDF

48.9 KB Created: 2020-08-14 09:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee5451c8a270e5b35a6d6e91007250af SHA-1: fd16aa482373e76e4bd4f2e6a39af9424c86a331 SHA-256: 228eca4bca2db0b63179ee94b6af784cecf30e6e17f08910a3f35b06651282c1
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to 'ttraff.com'. The document body and heuristics indicate a callback phishing lure, suggesting the user should take immediate action. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to obscure the malicious redirector. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

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=workers+comp+doctors+first+report
    • http://files.nchconference.org/uploads/1/3/0/8/130814342/gafibuv.pdf
    • http://wobir.jisooleeauthor.com/uploads/1/3/1/1/131164250/0d5460ed5.pdf
    • http://siwozag.sswfinc.com/uploads/1/3/0/8/130814526/bukibifipapu-wumixidojeb-tojiluvokud.pdf
    • http://defaxap.awakening-spirit.net/uploads/1/3/1/4/131453494/vugofikalo-sedifitenipoved-gakudisap.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/fagokefitemazokutemoj.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/tomimozarexezado.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/spore_formation_in_bacteria.pdf
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/lifawafagikugatevaresagod.pdf
    • https://cdn.shopify.com/s/files/1/0435/3504/0664/files/42084606245.pdf
    • https://cdn.shopify.com/s/files/1/0429/2168/9254/files/wenefelutusonasezagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/pifejerudowinoron.pdf
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/23970529249.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7414/files/43603114100.pdf
    • https://cdn.shopify.com/s/files/1/0439/1898/3323/files/23930616590.pdf
    • https://cdn.shopify.com/s/files/1/0430/9286/9281/files/physics_giancoli_6th_edition_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1219/files/sigawixipafegidejodule.pdf
    • https://cdn.shopify.com/s/files/1/0430/5649/6794/files/55808947019.pdf
    • https://cdn.shopify.com/s/files/1/0441/0333/6088/files/to_zanarkand_guitar_tab.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_off00007fb8.bin
1759dca3a33f0e4ab59881d66c1a3641b81e63e1bc76b68eba3bd27c682218d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 5136 bytes
font_01_sfnt_off00009131.bin
87465879c094d21e5bccfd7f2d0e74ccbeeb055087f7ffb4a7ffbbafbe24879a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 11068 bytes

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