Malicious PDF — malware analysis report

Static analysis result for SHA-256 568cdd5845015f4e…

MALICIOUS

PDF

35.3 KB Created: 2020-08-10 20:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab240f56e1a1dee725d66ddea745f11b SHA-1: ade408ee3bec14fb21c6fef34d30c14a1b3f58cb SHA-256: 568cdd5845015f4e482f3cba14dd59d3a633c212e681210f4642b6b4bd7aa265
150 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=you+deserve+it+jj+hairston+lyrics+pdf'. This URL is presented within the document body, disguised as a song lyric PDF, to entice users to click. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the true malicious destination. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=you+deserve+it+jj+hairston+lyrics+pdf
    • http://files.centralcoastvolleyball.net/uploads/1/3/0/7/130776439/2387440.pdf
    • http://files.gracebaptistlockport.com/uploads/1/3/0/9/130969809/pagarodosef-tebak.pdf
    • http://vabol.fieldofdreamsnh.org/uploads/1/3/0/9/130969204/vojokozob.pdf
    • http://files.themarblewarehouse.com/uploads/1/3/2/7/132740293/vujezumaxejidibe.pdf
    • http://files.getfitwithcharlie.org/uploads/1/3/2/3/132303229/6da700140889.pdf
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/12124810405.pdf
    • https://cdn.shopify.com/s/files/1/0433/7057/8070/files/sharepoint_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/xajomedaxepibafewona.pdf
    • https://cdn.shopify.com/s/files/1/0452/7731/5233/files/personal_statement_for_masters_example.pdf
    • https://cdn.shopify.com/s/files/1/0437/3548/2517/files/free_annual_report_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/1569/1678/files/walinitamijuxisufinelotum.pdf
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/journal_algerien_aujourd_hui.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/1563992629.pdf
    • https://cdn.shopify.com/s/files/1/0437/5809/2439/files/28901784319.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/67055889550.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/look_alike_sound_alike_drugs_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/1326/6846/files/43857289626.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/vifugoleg.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/
    • https://cdn.shopify.com/s/files/1/0433/03

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cdd.bin
259f91d20994222995dd99004222d34326df26ff3ef59a1ba0c21371bf2fbbe3
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CDD 5444 bytes
font_01_sfnt_off00005f6d.bin
c686270cc5a5fc658947818a130c45937ded386b311b7cebabff3ed552c36941
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6D 9548 bytes