Malicious PDF — malware analysis report

Static analysis result for SHA-256 0614e4264eda0366…

MALICIOUS

PDF

47.9 KB Created: 2020-08-18 22:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7347852bd58dcd7753692cde5b0c34d SHA-1: 799f5b03f0364fe2b15dfe48ca72a3343e4c2685 SHA-256: 0614e4264eda0366aa9d248144ea254310f36a8490c7be12b1e171a6a0c123cc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic indicates a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=early+childhood+education+journal+articles+pdf'. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted, but the presence of embedded URLs and the link farm heuristic strongly suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=early+childhood+education+journal+articles+pdf
    • http://files.dave-mckinney.com/uploads/1/3/0/9/130969761/6945527.pdf
    • http://wagif.thedreamblog.com/uploads/1/3/1/4/131453251/1532646.pdf
    • http://files.xabobcats.com/uploads/1/3/2/6/132682905/bipewixogar_rorones_kekaxonogerim_fibezedazekap.pdf
    • http://makaxam.iamadamgreenfield.com/uploads/1/3/1/0/131070786/duduw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/6859/5112/files/teas_v_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/8596/9048/files/66739568685.pdf
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/trastorno_de_panico_con_agorafobia.pdf
    • https://cdn.shopify.com/s/files/1/0433/5661/8917/files/jigotumezuzuli.pdf
    • https://cdn.shopify.com/s/files/1/0430/6586/8437/files/50617352244.pdf
    • https://cdn.shopify.com/s/files/1/0436/3495/0304/files/menobasamepilopidin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6320/files/weight_loss_tips_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18983443830.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6968/files/77388252592.pdf
    • https://cdn.shopify.com/s/files/1/0427/9461/4940/files/11399369540.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/vimajavules.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dab.bin
6bcdddf9d97b8e368bfdba6f2584ad20b4f9d1ce0b6f2fcf4ea07c2c3fc05a46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAB 5376 bytes
font_01_sfnt_off00008ff6.bin
04c106bf335c3040ac83b9c6a07ca219b9eb7932dbcc6b2f9456e2d28ecb0440		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF6 10076 bytes

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