Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2f00f10e95455a…

MALICIOUS

PDF

98.6 KB Created: 2020-08-18 22:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45823acafebc0626a9d12531d4b99f81 SHA-1: e59ef203f7ec01f3f184e43848294533d4ee132d SHA-256: 7c2f00f10e95455ad9f67cc046c617e4c08b09f19c44f20baaaff5dc4c561ff7
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying it as a link farm. The primary link directs to a known malicious redirector, traff.cc, disguised with a keyword related to the document's apparent topic. The document body, though heavily obfuscated, contains the URL for the malicious redirector, suggesting the PDF's purpose is to drive traffic to this malicious site. 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=fluoride+in+drinking+water+pdf
    • http://komal.stephenkielce.com/uploads/1/3/1/6/131637254/16bdf4.pdf
    • http://files.basketballhelp.net/uploads/1/3/1/3/131398000/32ba2906f.pdf
    • http://files.ganetsinai.net/uploads/1/3/1/8/131858481/9075828.pdf
    • http://files.bangpleelanguageschool.com/uploads/1/3/1/4/131453215/49133ee61594.pdf
    • http://sokimipa.skeletonrep.org/uploads/1/3/0/8/130874431/5c9def.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/vowakanilokopuliferedagov.pdf
    • https://cdn.shopify.com/s/files/1/0434/1107/9317/files/dieta_semanal_para_aumentar_masa_muscular.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/free_telugu_hd_movies_sites.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/tusop.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/adobe_after_effect_cs4_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/catalogo_cable_belden.pdf
    • https://cdn.shopify.com/s/files/1/0437/7178/9470/files/best_typewriter_font.pdf
    • https://cdn.shopify.com/s/files/1/0434/0380/4839/files/71231949171.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/80065317962.pdf
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/forimiximezalisepok.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/zefaj.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_off0001357d.bin
b11a0cdb0911db9257f76723aa5cf40129aa3bf8f53e4d990ec87bbefdb407d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x1357D 5024 bytes
font_01_sfnt_off000146b5.bin
897da1c0d3e1bec39cb49456f537256698ed9f0601cdf172b4c316037a8c36d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x146B5 12396 bytes
font_02_sfnt_off00016e85.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x16E85 4324 bytes