Malicious PDF — malware analysis report

Static analysis result for SHA-256 f375e9cf91edc5b8…

MALICIOUS

PDF

70.3 KB Created: 2021-02-12 15:47:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 54ccfa29c784900eb928c11c23d8269e SHA-1: 68c0b9cca487fe6ae675e4cdff9dfcb2c43e30e2 SHA-256: f375e9cf91edc5b8affea7552416d6c269c74c5c62e486f5089e521577ec8922
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/wix?keyword=grondahl+trombone+concerto+piano+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413566/normal_600c3cfc212c8.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/pdhiIjj/fun_things_to_do_around_philly.pdfIn PDF document text
    • https://biwawidojimu.weebly.com/uploads/1/3/4/6/134648839/a345d6a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493201/normal_60024a77d17ee.pdfIn PDF document text
    • https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/8346666.pdfIn PDF document text
    • https://vetolotex.weebly.com/uploads/1/3/1/3/131379132/9312832.pdfIn PDF document text
    • https://vejevidumuruje.weebly.com/uploads/1/3/5/3/135302175/gemixirosi_vuwok_zulabarol_fofozasozagewax.pdfIn PDF document text
    • https://damabinon.weebly.com/uploads/1/3/0/7/130738970/7353097.pdfIn PDF document text
    • https://cdn.sqhk.co/dugixikisim/Ygcfuid/bavalu.pdfIn PDF document text
    • http://raxijinerig.iblogger.org/52606927523.pdfIn PDF document text
    • https://najoduvojubowi.weebly.com/uploads/1/3/2/8/132815002/694d3fa5d96a.pdfIn PDF document text
    • https://cdn.sqhk.co/biserodafed/jghciih/4611714687.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462065/normal_5ff3b3f71e6ed.pdfIn PDF document text
    • https://lofidebonejiniz.weebly.com/uploads/1/3/5/3/135334880/tisajudemala_rezogowipez_paverosupula.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406771/normal_5fc9befe322eb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bumojito.rf.gd/gebiromalikipag.pdfIn PDF document text
    • http://riwugenesujo.epizy.com/happy_birthday_piano_sheet_roblox.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD650 5388 bytes
SHA-256: 72c0a07253b9db98eac17b7f6e9df70548097df194f189de926e7fd63defe0c9
font_01_sfnt_off0000e874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE874 10460 bytes
SHA-256: bdc53d51905b582a3f37dba67115273c52bda6d297a16d245be5ea200bccdd43

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