Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b01d7b73ddf24b5…

MALICIOUS

PDF

55.0 KB Created: 2020-08-17 06:33:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98f0bc1d270e3c985cd2a401898d2da4 SHA-1: d54a59990f3954fb311c5b5fbb7a0fb3d9d83995 SHA-256: 4b01d7b73ddf24b5e8a8faa53485f549d5594e0cfaaa8476ce5792f90c56de9d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a link farm and a specific malicious redirector URL, 'https://ttraff.ru/pify?keyword=aatish+movie++full+hd', disguised as a movie download lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this redirector points to known malicious infrastructure. The presence of numerous other PDF links, identified by 'PDF_SEO_LINK_FARM', suggests a tactic to distribute malicious content or engage in SEO manipulation. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or redirection attack.

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.ru/pify?keyword=aatish+movie++full+hd
    • http://winasalex.nsanegriplegendcars.com/uploads/1/3/1/4/131438477/tosuwelalozom.pdf
    • http://files.balwynhighschool1957to1962reunion.org/uploads/1/3/1/0/131070846/953bd02ef.pdf
    • http://files.thepeacecentre.org/uploads/1/3/2/7/132740805/2daa898.pdf
    • http://sazukenu.controlcompcostsnow.com/uploads/1/3/0/8/130814297/d68d8d8577.pdf
    • http://files.leahchanglearning.com/uploads/1/3/0/8/130874125/bokazexat.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/3782054506.pdf
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/expanding_tactics_for_listening_second_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/vezuxavekusu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/bsc_agriculture_6th_sem_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/24851857056.pdf
    • https://cdn.shopify.com/s/files/1/0435/3599/0943/files/program_convert_to_word_free_download_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/55619254797.pdf
    • https://cdn.shopify.com/s/files/1/0428/4642/1158/files/17630424632.pdf
    • https://cdn.shopify.com/s/files/1/0434/0678/6725/files/sql_server_database_2016.pdf
    • https://cdn.shopify.com/s/files/1/0428/1666/7815/files/cv_marketing_digital.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075fe.bin
308b66c085bacfeb404ab4b98e1ee9a512ca7b6a69c95766c2773add612b51ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75FE 5100 bytes
font_01_sfnt_off00008740.bin
fbeb063f165cec72712a9fd018cc17a432df4bbb619d92562db2d47a3eefc334		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8740 10376 bytes
font_02_sfnt_off0000aaf9.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF9 16164 bytes
font_03_sfnt_off0000c04e.bin
7d4cb35e70574176a24139dd9ec19399d1cad0cf074e7e11b1dda91bc4a772cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC04E 3716 bytes

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