Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ef229d9847fe5c…

MALICIOUS

PDF

41.2 KB Created: 2020-08-20 14:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5097eab32858779bc3cb625fc3c2a804 SHA-1: 4b7cdda9a166b847e2663540db32d2d085d476ea SHA-256: 93ef229d9847fe5cb53eaffa3aab3a1c75e0fb155df6bc6742992e2e093471fd
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=old+school+rs+fletching+guide', which is designed to redirect users to potentially harmful content. The document body also contains references to this URL and other PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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=old+school+rs+fletching+guide
    • http://files.jacksonchapelumc.org/uploads/1/3/0/7/130738641/6090990.pdf
    • http://ruwuluxa.mfavela-nutrition.com/uploads/1/3/1/8/131871980/mitoxenogi_xofiwusexu_zegitumopi.pdf
    • http://files.khaledalabasi.com/uploads/1/3/2/7/132712163/xurewubokeze-waxiwone.pdf
    • http://tufava.amyouthsports.org/uploads/1/3/1/6/131636832/wifara_zupulusoxudeni_lerigol.pdf
    • http://lifewup.burhanisawmills.com/uploads/1/3/1/6/131606420/8ce61b2.pdf
    • https://cdn.shopify.com/s/files/1/0436/1833/6925/files/23147689947.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/lekadetovemavisoze.pdf
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/a_pathology_atlas_of_the_human_cancer_transcriptome.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68513135127.pdf
    • https://cdn.shopify.com/s/files/1/0437/7093/7498/files/nukasimobaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/pinetowerivuturofixe.pdf
    • https://cdn.shopify.com/s/files/1/0434/4230/7239/files/zoripagikaladaxomowegawif.pdf
    • https://cdn.shopify.com/s/files/1/0440/4091/3061/files/parker_canyon_lake_az_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/8660/9573/files/43063440266.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/allen_neet_major_test_series_2020.pdf
    • https://cdn.shopify.com/s/files/1/0449/0670/9159/files/uranium_enrichment_by_gas_centrifuge.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_off000062e0.bin
3863b7a5ec4c3812e17f99405202b5abfd51bc15f529c01046435daf59a09165
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E0 5100 bytes
font_01_sfnt_off00007436.bin
26350a58bd29270889942d89d145e2b8658bedc23a03d2f8c8c4803861466c83
pdf-font-stream PDF embedded font (sfnt) at offset 0x7436 10660 bytes