Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba248f5ee1c3fc2…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 04:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 646d4fcceedf02206f5a560f9cc87d9a SHA-1: 1bddc2dce8376c2a460113f514debdeee6d9d0b3 SHA-256: 2ba248f5ee1c3fc2381d693d8c8185a612e9122fc6d29ec9b66e408ac2909113
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=classifying+triangles+worksheet+gina+wilson'. This indicates the document's primary purpose is to redirect the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content broadly. 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/pify?keyword=classifying+triangles+worksheet+gina+wilson
    • http://mizopagez.beardedbomb.com/uploads/1/3/1/0/131070894/tikavoliz.pdf
    • http://files.pinkbehindthethinblueline.org/uploads/1/3/1/0/131070149/4407690.pdf
    • http://files.ariseaddictionrecovery.com/uploads/1/3/0/7/130776828/kixur-ririxegifux-xorat.pdf
    • http://files.centrepointecincinnati.com/uploads/1/3/1/4/131406413/e08b8.pdf
    • https://cdn.shopify.com/s/files/1/0444/4851/4215/files/atrocity_bare_act.pdf
    • https://cdn.shopify.com/s/files/1/0433/1523/2923/files/charminar_malayalam_movie_ringtone_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/96026549258.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/ridewigokuruvipasawo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2926/5564/files/vovofudatosumorutazanogu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/35125406251.pdf
    • https://cdn.shopify.com/s/files/1/0439/2298/1032/files/bsc_nursing_1st_year_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/31130664296.pdf
    • https://cdn.shopify.com/s/files/1/0428/3554/2182/files/butosewafifuvalawerete.pdf
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/23537698112.pdf
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/xawekovegovuda.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004908.bin
8c3e3901e41e2adc35ffb50d6dbf18a217ee5aaf7694910b8dee7a11f0242053
pdf-font-stream PDF embedded font (sfnt) at offset 0x4908 8052 bytes
font_01_sfnt_off000063fb.bin
d2b48559685eba60b65a0d344d04c6627f922bc4abab81fb2608d17d2e2271a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x63FB 5192 bytes
font_02_sfnt_off000075b6.bin
a22a224e92bcf44befc73d169d2afae451666ba45cac2b67135e582be72b22a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x75B6 9624 bytes