Malicious PDF — malware analysis report

Static analysis result for SHA-256 2026ce2eef2c3d23…

MALICIOUS

PDF

72.0 KB Created: 2021-02-16 11:28:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b446d3d0e7e8b1dc960f8a30bdbf61d2 SHA-1: 36623caceadad4e75bd7fb556fac3578106d5154 SHA-256: 2026ce2eef2c3d235296b52c3e10e42c532fdda3e2816edd6d67711873471fc1
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=glencoe+world+history+journey+across+time+the+early+ages+pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4410674/normal_5fe4d8595e2bd.pdfIn PDF document text
    • http://usene.xyz/97596398684xmc2b.pdfIn PDF document text
    • http://nout-prokat.website/wamaxevelujizuwezarojijuzj51np.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421770/normal_5fe3db51dc07e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414498/normal_5fe3569dbebf8.pdfIn PDF document text
    • https://tetalopen.weebly.com/uploads/1/3/1/8/131857308/lipodob_funenujili.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379626/normal_5fe79d2e10ded.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371807/normal_5feb0d3bec317.pdfIn PDF document text
    • https://mozevosiku.weebly.com/uploads/1/3/3/9/133999333/ligadopufetekimuv.pdfIn PDF document text
    • http://phtech.site/dr_eric_westman_ketogenic_diet_food_list14z7n.pdfIn PDF document text
    • https://jotulamopusojo.weebly.com/uploads/1/3/4/4/134465369/balexo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372982/normal_6000b07508d48.pdfIn PDF document text
    • https://tabivivefevevu.weebly.com/uploads/1/3/4/8/134889686/vowolisukel.pdfIn PDF document text
    • http://huaweistoreukr.xyz/what_do_you_understand_by_food_chain_and_food_web62mp2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/48386465069.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/basic_electrical_engineering_mcq_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/mejofovo.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/bafukafepimaxavu.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/nikilulemuxolilagawev.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/77094439582.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE3 5752 bytes
SHA-256: c2533c3bf70845a6cfb8ff20fe9803b33cd701310bae82f95b87b21a76ecf727
font_01_sfnt_off0000e068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE068 10292 bytes
SHA-256: cf5e4bc66d858791507de064f6ab1d238ee53db87055a24690ebbd6084250850
font_02_sfnt_off000103a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A1 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230