Malicious PDF — malware analysis report

Static analysis result for SHA-256 8943b9fcb35fed55…

MALICIOUS

PDF

45.4 KB Created: 2020-08-16 00:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2afa95e5f06b1097bff8591dcc12834 SHA-1: 75781443d0ddcc3b630c7bb9f8684d5f6de18d6c SHA-256: 8943b9fcb35fed55fb88e878834f2fc8a20e9a419132800f875461c241e87e9f
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document body, though heavily corrupted, contains references to URLs and appears to be part of a link farm strategy. The presence of a callback lure heuristic suggests a potential phishing or social engineering attempt, possibly to trick users into calling a fraudulent support line after clicking the malicious link.

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.cc/pify?keyword=yamaha+metronome+app+android
    • http://migewefel.eztaughtme.com/uploads/1/3/0/8/130874493/b71f697.pdf
    • http://files.sedatedmedical.com/uploads/1/3/1/8/131871586/weloleke-kokezurepoxulad.pdf
    • http://files.mindset.dbbcso.org/uploads/1/3/1/4/131438509/2540042.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdf
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/conjunctions_english_list.pdf
    • https://cdn.shopify.com/s/files/1/0440/1161/8462/files/penawuba.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/computer_application_in_e_business.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/17556112036.pdf
    • https://cdn.shopify.com/s/files/1/0435/2675/0362/files/61902169123.pdf
    • https://cdn.shopify.com/s/files/1/0434/1409/3986/files/energizer_nimh_battery_charger_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/xunufolo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/1920138674.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9208/files/modapabawezarodazufipine.pdf
    • https://cdn.shopify.com/s/files/1/0434/2002/4989/files/apple_keynote_timeline_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/8998376949.pdf
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/bollywood_actress_photos.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005561.bin
6b2afd834f338b5af7efc78ef502db6be5fef80be335e0320192c0ed6fcbc6f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5561 4952 bytes
font_01_sfnt_off00006605.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6605 1800 bytes
font_02_sfnt_off00006e93.bin
ecd8cb1e517446af0c6b96ec8e0322f48b81208fe5a204a201b619e0c08b44f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E93 10452 bytes
font_03_sfnt_off00009238.bin
9c47a8ecf7103172530608de19fa11afb8a035ab51042e9cb8c6809f09ebb189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9238 16344 bytes

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