Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00e10e25463b6f3…

MALICIOUS

PDF

43.9 KB Created: 2020-08-10 14:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c0fa01231d2607193bc054179b07d9f SHA-1: 4b7434c889ba1e6f3f51c83c60e03f9470bd4ad7 SHA-256: e00e10e25463b6f3276cbaa440a912d182f036accd05e5abe514be5116b214e4
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics, including linking to known malicious redirectors and containing a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and URLs, including a redirector URL from ttraff.com, which is likely used to funnel victims to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=adjectival+and+adverbial+clauses+pdf
    • http://files.g-p-i-s.com/uploads/1/3/1/6/131637853/4221499.pdf
    • http://files.abdullah-francis.com/uploads/1/3/0/7/130740536/73527fd0901.pdf
    • http://files.ajeplanners.com/uploads/1/3/1/4/131406816/sifojopese_nidukuzinagimo_xutokajofuzi_roxurugar.pdf
    • http://files.werribeegymnastics.com.au/uploads/1/3/1/4/131407102/nuniroto.pdf
    • http://files.narayanaresidences.com/uploads/1/3/2/6/132682681/3aab076f68e677c.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/1913424078.pdf
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/ronetutewuguxivonugopiro.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/calculus_volume_2_narayanan_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/tufovuxitevevulipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9408/1687/files/zuvubitinamog.pdf
    • https://cdn.shopify.com/s/files/1/0433/9168/0666/files/gold_star_chili_application.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/advanced_systemcare_pro_12_key.pdf
    • https://cdn.shopify.com/s/files/1/0435/4048/0155/files/pdf_adobe_acrobat_x_pro_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/45024209283.pdf
    • https://cdn.shopify.com/s/files/1/0432/3396/8287/files/latepoziba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4528/1183/files/11556458677.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_off00006104.bin
a8eacd268933e39434192b570f50848792e2bd8199cdfe35d9da53b451f74f5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6104 5184 bytes
font_01_sfnt_off000072b4.bin
7d40936690f51920b2ccdda67907af559b8b7847018417340fdb8adf0c3f2f8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 9792 bytes
font_02_sfnt_off0000943c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x943C 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.