Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcb0d2c435fcf6f…

MALICIOUS

PDF

39.9 KB Created: 2020-09-13 23:34:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a44bd3a417b316a8ededb3b58340717 SHA-1: 216d56c6fb699a1610a7a486be06761f401cfdf9 SHA-256: 3bcb0d2c435fcf6fcbdd1e413f050580d5c1d87cc0d65281b7595f9c1174281d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.link/pify?keyword=game+center+cx+subbed'. Additionally, it hosts a large farm of 17 external PDF links, many pointing to Shopify domains, suggesting a potential SEO manipulation or content distribution scheme. The document body contains garbled text but also includes the malicious redirector URL and several benign-looking PDF links.

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.link/pify?keyword=game+center+cx+subbed
    • http://files.sinisterkiss.com/uploads/1/3/0/8/130873758/galemu_xevuganuv_gujemexodupiru.pdf
    • http://files.ragandboneprojects.org/uploads/1/3/1/4/131482976/nigol.pdf
    • http://files.bensawyermusic.co.uk/uploads/1/3/2/7/132740218/kelupotamevivok.pdf
    • http://paripexov.myncpl.com/uploads/1/3/2/8/132815367/4a4c9bc859867f.pdf
    • http://files.amazingdownunder.com/uploads/1/3/2/7/132712206/bezulozobufij.pdf
    • http://gazulojan.stylebybarbara.com/uploads/1/3/1/6/131636947/ed7245e9b5640c7.pdf
    • http://lisekowo.albertateamsortingassociation.com/uploads/1/3/1/6/131637308/zunegaw.pdf
    • http://vopofaket.penultimatephotos.com/uploads/1/3/0/9/130969264/kuxijapufidugoj-jomawizakog-zejejegekizudi-setobu.pdf
    • http://molev.flatrockcreekbaits.com/uploads/1/3/0/8/130874411/dd1d1f069b.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/phonics_a_to_z.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/2003_lincoln_aviator_owner_s_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8502/7745/files/educational_research_quantitative_qualitative_and_mixed_approaches_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/zuwixogefazabavus.pdf
    • https://cdn.shopify.com/s/files/1/0434/8484/0089/files/33418172931.pdf
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/house_albums_2018_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/7750/7999/files/american_english_language_course.pdf
    • https://cdn.shopify.com/s/files/1/0432/5788/8936/files/95530461308.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_off00005d54.bin
5cd079a582cea5a89502010fdcae19f9cd67cf076d7d5f180898d6004b339f8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D54 5292 bytes
font_01_sfnt_off00006f3f.bin
c84ab68234262207f8d73b2efcfaae2c4a94427ec21b46ebc3939a9f2ed7be70
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3F 10516 bytes