Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ffe7e319c7c202…

MALICIOUS

PDF

41.4 KB Created: 2020-08-19 09:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77c5f2e756635539d5fe1a3e258d6643 SHA-1: 6b4e796742e4584952fb214cc37cf552cf8788ea SHA-256: 32ffe7e319c7c2022958e97a9b46b5c778c1dcd87ef6da168fb53fb9f20d8ff2
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is 'https://ttraff.com/pify?keyword=baf%25C3%25B6g+antrag+niedersachsen', which likely serves as a lure to a phishing or malware distribution site. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent. No scripts were extracted, but the PDF structure and embedded links strongly indicate a social engineering attack.

Heuristics 3

  • 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.
  • 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=baf%25C3%25B6g+antrag+niedersachsen
    • http://files.mikaylamac.com/uploads/1/3/0/7/130738823/femajifaboz.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5581/files/69849492776.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/metro_pcs_phone_payment.pdf
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/adobe_blackout_text.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/retinoblastoma_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridikesomuzumiburowafex.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/6902322603.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/morfologi_daun_belimbing_wuluh.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0529/files/xonabonuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/2468/5976/files/75700665642.pdf
    • https://cdn.shopify.com/s/files/1/0438/3863/6192/files/7748866959.pdf
    • https://cdn.shopify.com/s/files/1/0434/3611/4076/files/atomic_structure_book.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_off00006073.bin
0a79e45d45111985a1cffb9fcee24a5baa29b732d8d06a97f87246941569918c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 5436 bytes
font_01_sfnt_off000072aa.bin
f604cf8176276e48a22e051e7606103797e95b439e155d9efa02e4282bb76539		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AA 11152 bytes

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