Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef7bda54b831060…

MALICIOUS

PDF

39.8 KB Created: 2020-08-13 16:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ce4ac3f86008fcacf542b55ea4485cc SHA-1: fa10638ad64f75c0a40f1f59b8b98c108db63b67 SHA-256: 9ef7bda54b831060791aeec74b174d87ece104fa86029a0cc6da32d59f7cb86a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, characteristic of a link farm designed to manipulate search engine results or distribute malicious content. One of the embedded URLs, https://ttraff.cc/wb?keyword=fungsi%20mpr%20dan%20dpr%20pdf, is identified as a malicious redirector, indicating a likely attempt to lead the user to a harmful destination. No scripts were extracted from this sample.

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.cc/wb?keyword=fungsi%20mpr%20dan%20dpr%20pdf
    • http://files.youthscope.org/uploads/1/3/1/8/131856293/luwobiw.pdf
    • http://files.modernhistoryseminars.com/uploads/1/3/1/4/131438397/lepifixe.pdf
    • http://files.tonypalermolifecoach.com/uploads/1/3/1/4/131437740/eaf0f757.pdf
    • http://files.quik-smog.com/uploads/1/3/1/6/131606256/3051678.pdf
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/samewukekotelelujit.pdf
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/negorazimepokelubavit.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/kelizi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4204/4066/files/49713730515.pdf
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/tasaxevifajubaleropuga.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/arthashastra_book_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/guerras_carlistas_resumen.pdf
    • https://cdn.shopify.com/s/files/1/0437/6176/2456/files/xijamutiwog.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/seketotiposeponodiba.pdf
    • https://cdn.shopify.com/s/files/1/0431/9313/9357/files/new_headway_beginner_student_s_book_3rd_edition_free_download.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_off00005f9f.bin
03bba58a213f1014f4111eab568f4435fb154523d5bb435dc0ff579407929e36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 5284 bytes
font_01_sfnt_off0000717f.bin
931ead701f463f59bb23a5419cabdb9785da2d3571bc8a0a966a74435bd34674		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717F 9708 bytes

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