Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb8c27aab4e4345…

MALICIOUS

PDF

45.2 KB Created: 2020-10-29 10:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e0aa906fdcd824d34e76e29a2e3d2ac1 SHA-1: 2cd09164aa79e2b4a7a1c498c63ce221c978b262 SHA-256: 6fb8c27aab4e4345170705c17b013410723a17bd674260c67cb42d0b2ff05653
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with several pointing to known malicious redirectors or link farms. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern observed is the use of a link farm to redirect users to potentially harmful content, disguised with keywords like 'cuisinart 2qt ice cream maker manual'. No scripts were extracted, limiting the analysis of direct payload execution.

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://gettraff.ru/strik?keyword=cuisinart+2qt+ice+cream+maker+manual In PDF document text
    • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/8538890.pdfIn PDF document text
    • https://faxitovi.weebly.com/uploads/1/3/4/3/134379512/womatevonip-wojito-jisugoxebiso-xuniwodekadi.pdfIn PDF document text
    • https://solusolifodijal.weebly.com/uploads/1/3/4/4/134433047/xixazamupenalopezo.pdfIn PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/8320e8e68f2fd3c.pdfIn PDF document text
    • https://dipedupaketi.weebly.com/uploads/1/3/4/3/134333799/7373243.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/zukegaw.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/ganaxobi-domibipadi-rededabaje.pdfIn PDF document text
    • https://nukafubesogu.weebly.com/uploads/1/3/4/4/134463640/a088d0da77.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/gapovowumepekegosiza.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/16dfa150.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuxadol/56817323853.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/pexapijiwifapilo.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/fileved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2022/5176/files/earths_interior_worksheet_colored.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3067/3094/files/permutations_and_combinations_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/modul_akuntansi_dasar.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/lightroom_6_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/76439067656.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/35043737053.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/36812719955.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/xemozizemujoda.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/canara_bank_po_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3155/9829/files/konatonu.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_off000072e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E1 5172 bytes
SHA-256: ea2e2905b0c29fa2d546d66f4976181ee39df72f8eb07e31976d3b921c29cefd
font_01_sfnt_off00008465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8465 10360 bytes
SHA-256: 9a9496a218123aa171dfb9649b2ff1fcf6d8a1f36d3a3aea29bba842a6d9fed4

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