Malicious PDF — malware analysis report

Static analysis result for SHA-256 94817d0bda68aa40…

MALICIOUS

PDF

46.4 KB Created: 2020-08-09 08:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fdd8b459539e0da6ce72a38dfdc36a8 SHA-1: fb5ec812884b8ecff4f8c9fc5377c0f45e66fd62 SHA-256: 94817d0bda68aa4050310da3d665f6ae8b73f0e34927df0641a2a88677152006
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=fahrenheit+451+test+pdf', which is also flagged as malicious. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to distribute malicious content. 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=fahrenheit+451+test+pdf
    • http://files.moonlakedesigns.co.uk/uploads/1/3/1/4/131413148/togalexe_ranogatafifag_detosunate_doloj.pdf
    • http://files.luthanealadams.com/uploads/1/3/0/7/130775180/mimexozape.pdf
    • http://files.judith-castro.com/uploads/1/3/1/6/131606331/5703602.pdf
    • http://files.trevanitruffles.net/uploads/1/3/1/4/131453278/nixafafipozuzupiko.pdf
    • https://cdn.shopify.com/s/files/1/0429/2087/0044/files/biopsicologia_pinel_capitulo_4_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3336/files/zarulogeni.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/sojewax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38967404473.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56070096689.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/ligesakonavotagubaminogej.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/lidisese.pdf
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/bomedaxa.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/catalogo_de_cuentas_contables_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/8683/1004/files/arithmetic_and_geometric_sequences_foldable.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/jemolekuvibopote.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/togetepenabigatutitidikuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/fekodunasozek.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_off00006aef.bin
50066efb230c257f60d6fcd82f2787bb8fefab5671caf62f3bf3af5180ccd7ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 4992 bytes
font_01_sfnt_off00007be9.bin
099a93213afb35205d0f9e0498260f0b00a74f3d7134b57aa944282eaeb30ed5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE9 10088 bytes
font_02_sfnt_off00009e70.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E70 4324 bytes