Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75716aafa8d5b65…

MALICIOUS

PDF

45.9 KB Created: 2020-08-08 07:50:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65745a019416fc2c6359d9e66ed7c24c SHA-1: e2740b332a2b23ef288a464875bbd82be9b082d2 SHA-256: e75716aafa8d5b657c71c5f53b1dd0af8df8efa6b2ecc475a33c0528ea9f3215
140 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as search results for 'aramco calendar 2020 pdf', with a primary malicious redirector URL. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links, likely to mask the malicious intent. The presence of a callback lure suggests a potential phishing or social engineering attempt.

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.
  • 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
  • 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.ru/pify?keyword=aramco+calendar+2020+pdf
    • http://files.3dxmexico.org/uploads/1/3/1/4/131438641/2830269.pdf
    • http://files.shoreexcursionsambercove.com/uploads/1/3/0/7/130738960/leronavekawul_togifivijiref.pdf
    • http://files.campcedarwood.org/uploads/1/3/1/8/131871605/migemipa-xidovaker.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/43341740743.pdf
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/effective_advertising_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/elementary_real_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/vigukoxukapexotowuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/4223/2725/files/cours_d_agronomie_gnrale.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/zagikamifumewesobewo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/glass_animals_gooey_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0446/9473/2953/files/operation_of_two_stroke_engine.pdf
    • https://cdn.shopify.com/s/files/1/0433/9502/3013/files/vce_to_conversion_online.pdf
    • https://cdn.shopify.com/s/files/1/0438/2418/5506/files/vujesumux.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_off00007381.bin
530ddf60ab5cbf739c0d8db6cb9d32ce3aa3d4ae0d5f6684e4e586ed390bcbcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7381 5388 bytes
font_01_sfnt_off000085ba.bin
c2a1f3ca03aac91260837b444ece63e085166100edde41b117fe8be009e9eec7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BA 11044 bytes

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