Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f214bcc3e6a2ec3…

MALICIOUS

PDF

44.8 KB Created: 2020-07-10 18:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4261eab10ee0a6d933b85fcfb9bc8aec SHA-1: 983eb99fa7acbe24108d34f1e9fd7b5dbc332b19 SHA-256: 2f214bcc3e6a2ec322d644074c47b8d75aead0ffc32f0fa484b5af33ef40de40
120 Risk Score

Malware Insights

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

The PDF document contains a lure referencing 'stretching routine for runners' and embeds a significant number of external links. One critical heuristic indicates these links point to known malicious redirector infrastructure, while another identifies it as a PDF link farm, likely for SEO manipulation. The primary intent appears to be directing users to potentially harmful websites through a deceptive document.

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.com/wb?keyword=stretching%20routine%20for%20runners%20pdf
    • http://files.demornewarrenddub.com/uploads/1/3/1/4/131409170/dakodup-simegi.pdf
    • http://files.carolinegoldbergigra.com/uploads/1/3/2/7/132741382/f79fc875dbd7.pdf
    • http://files.vietnameravets.com/uploads/1/3/1/0/131070527/771ae.pdf
    • http://files.dirfloortimecoalition.com/uploads/1/3/1/6/131636632/fomiloku_niroluforidax_tebuzuvimetilad.pdf
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
    • http://files.srrlsf.com/uploads/1/3/1/3/131380868/4f04903295aa5.pdf
    • http://files.portagecentralexams.com/uploads/1/3/0/9/130970022/tofujudinaf.pdf
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
    • https://gosigisor.files.wordpress.com/2020/06/lesezulu.pdf
    • https://tozoxoxejon.files.wordpress.com/2020/06/finifubowilolanuvutuf.pdf
    • https://wuduvuripu.files.wordpress.com/2020/07/65304154824.pdf
    • https://vikukixiv.files.wordpress.com/2020/07/kivusudemunomalajum.pdf
    • https://bozajimiko87086636.files.wordpress.com/2020/06/bovuki.pdf
    • https://danutajozuk.files.wordpress.com/2020/07/jevorixepisowukudije.pdf
    • https://faxomabulev.files.wordpress.com/2020/07/93367296166.pdf
    • https://cdn.shopify.com/s/files/1/0429/9928/3861/files/84828122280.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/rejujuwofijabimejel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nosisuzamozozi.pdf
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/wezigakirofukenafe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/79271780991.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sovaratumu.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_off0000711e.bin
ec1d38b1635b07771cc3744e5c37b9f2465b86580076af6a4bda7d0ddd303283
pdf-font-stream PDF embedded font (sfnt) at offset 0x711E 5160 bytes
font_01_sfnt_off0000829f.bin
54a15c085c776ba24151c23e9d5ca14ca7dd1415c04390e90429a2f5b4f55f70
pdf-font-stream PDF embedded font (sfnt) at offset 0x829F 10288 bytes