Malicious PDF — malware analysis report

Static analysis result for SHA-256 254ed75ebf38e7fe…

MALICIOUS

PDF

40.8 KB Created: 2020-08-09 04:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a62590465b91ec33b793575ad48426e SHA-1: 5b6f12d89e61ae174f59e53009b87d42ad7520e0 SHA-256: 254ed75ebf38e7fe2acccf145dd9636ffcd4a16d077ea11104922242e2e2adc3
128 Risk Score

Malware Insights

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

The PDF contains numerous links, identified as a link farm, with a critical heuristic firing for a malicious redirector. The primary malicious link, 'https://ttraff.com/pify?keyword=advantages+of+online+advertising+pdf', is designed to lure users into clicking by promising a PDF related to online advertising. The document body also contains a call-to-action phrase, reinforcing the deceptive nature of the PDF.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=advantages+of+online+advertising+pdf
    • http://bogikoj.mathstart.net/uploads/1/3/1/8/131871721/ripejixij_pazijometev_kofezebutororo.pdf
    • http://files.terrievoigt.com/uploads/1/3/1/3/131379590/gadawimuse.pdf
    • http://files.amys3dayweekend.com/uploads/1/3/0/7/130739117/topuwutezifedarima.pdf
    • http://files.editorsink.net/uploads/1/3/2/8/132815002/4871493.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/suniparijojivosina.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/19355022479.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9099/files/english_to_bengali_dictionary_free_download_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/xuviwadisekezigag.pdf
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/64153406310.pdf
    • https://cdn.shopify.com/s/files/1/0429/3997/3788/files/nedenivusubopezaweditomo.pdf
    • https://cdn.shopify.com/s/files/1/0439/6272/8606/files/nomawumogadatozekunope.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/the_good_morrow.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/54111959620.pdf
    • https://cdn.shopify.com/s/files/1/0452/5981/7117/files/antigeno_prostatico_valores_normales.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/dexikoninufab.pdf
    • https://cdn.shopify.com/s/files/1/0434/7658/2560/files/anfibios_de_costa_rica.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_off0000617d.bin
ea7a7662254b2e47fc5479f904bd6dcd1410a009e3fcd4a6d09c39d5d015f827
pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 5256 bytes
font_01_sfnt_off0000737b.bin
59bbd2d22bce32c4624febe25dae49e00ac3a71fde975da9f3f3e7b0c585c9a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x737B 10096 bytes