Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ccbdcd3643aa5d…

MALICIOUS

PDF

46.9 KB Created: 2020-08-20 13:11:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee863848ff95e5435f4a4496aa00798a SHA-1: 2af3bc958104d555d976389d378ad57b305548d0 SHA-256: 94ccbdcd3643aa5d5705093bed2372bd8db42b0ed1b0235c06a9e469cfd9a454
152 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be a redirector, likely leading to a malicious site. The presence of numerous external links, many pointing to Shopify domains but also including suspicious ones, suggests a campaign to distribute malicious content or phish users.

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.cc/pify?keyword=been+together+pro+apk
    • http://ramisix.saltwaterpalette.com/uploads/1/3/1/3/131398589/21a645e756cf9.pdf
    • http://zabuwat.thelightwithinnh.com/uploads/1/3/1/6/131636612/popapevufowekurofuf.pdf
    • http://files.graphiclibrary.org/uploads/1/3/1/1/131163782/dawivam.pdf
    • https://cdn.shopify.com/s/files/1/0428/7820/6111/files/nujawukakijanipilojokutu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/benapufosugaravoderodur.pdf
    • https://cdn.shopify.com/s/files/1/0434/0881/8333/files/antioxidant_activity_of_honey.pdf
    • https://cdn.shopify.com/s/files/1/0461/9422/9406/files/central_and_east_asia_political_map_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/44987719893.pdf
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/70102796271.pdf
    • https://cdn.shopify.com/s/files/1/0434/9139/3702/files/university_of_alabama_football_news_bleacher_report.pdf
    • https://cdn.shopify.com/s/files/1/0440/3950/4022/files/fotibovugajusobipeker.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/18751422401.pdf
    • https://cdn.shopify.com/s/files/1/0431/4005/5208/files/93329422220.pdf
    • https://cdn.shopify.com/s/files/1/0435/5119/5299/files/exercicios_de_arcos_e_angulos_na_circunferencia.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_off00005ae0.bin
9fa954aa68a46083bd96b753d5a7f3ca0dc574215cf872625cfff19783f14ba0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE0 4984 bytes
font_01_sfnt_off00006bcd.bin
5ae1d259d034084be61ec780dd0ff4f7394a348651cf58c8458f9478dd568280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCD 1852 bytes
font_02_sfnt_off000074bd.bin
959aed3c194cd0d4b9d9c367b7449f8a98134b5aac1bff9394b15b80b3706f9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 10496 bytes
font_03_sfnt_off000098d9.bin
137c23124c16a469442ece0d6043bc3a0c1400548aacb9ce8e13445093cd952e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98D9 16232 bytes

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