Malicious PDF — malware analysis report

Static analysis result for SHA-256 59902faf950503a5…

MALICIOUS

PDF

92.2 KB Created: 2021-03-31 19:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b82e45c78f3769faaf52e59d3af40677 SHA-1: ba00719f03541149aaf6c363faecd59082ded4c9 SHA-256: 59902faf950503a56173e5408e608b8424c0f4f7eaf1ddeb952c68cea663e341
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, identified as a link farm, with a "Chargesheet movie watch online" lure in its body. The ClamAV detection and ML classifier strongly indicate maliciousness. The presence of embedded URLs and the nature of the link farm suggest the document is designed to redirect users to potentially malicious sites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jumiwimov.ru/123?utm_term=chargesheet+movie+watch+online PDF link annotation
    • https://pigupapizot.weebly.com/uploads/1/3/4/4/134480908/8507540.pdfIn PDF document text
    • https://zenanewexakidop.weebly.com/uploads/1/3/5/3/135310893/gijuxupisan.pdfIn PDF document text
    • https://ligexuvuzi.weebly.com/uploads/1/3/0/8/130814340/8333562.pdfIn PDF document text
    • https://kiziwovoxapi.weebly.com/uploads/1/3/4/6/134617524/bomovebesekopo-tivujesuzemina-tuwapubeban.pdfIn PDF document text
    • https://risonozolediwar.weebly.com/uploads/1/3/1/3/131398017/gomanisubabew.pdfIn PDF document text
    • https://cdn.sqhk.co/vujejanar/ijgjKii/bexim.pdfIn PDF document text
    • https://cdn.sqhk.co/bawevabob/jggdjbD/jodogaselujafor.pdfIn PDF document text
    • https://xumizobizuzu.weebly.com/uploads/1/3/4/6/134688834/diwidopekixa.pdfIn PDF document text
    • https://minibomutax.weebly.com/uploads/1/3/6/0/136011914/221523.pdfIn PDF document text
    • https://luwakanit.weebly.com/uploads/1/3/0/9/130969899/sosunuxeje.pdfIn PDF document text
    • https://cdn.sqhk.co/lopijikuvi/hdhdIhj/rally_championship_2000_download_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wibezudak/PF4tEhf/dragonvale_breeding_times_epic_breeding_island.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cd8fad78-6a19-43c6-878c-830d169ee42d.filesusr.com/ugd/ff0d91_6e6964ddf1754ec9a66d856cdfdd6d1b.pdf?index=trueIn PDF document text
    • https://901b9152-9067-49c5-8541-bb90c1a77dfa.filesusr.com/ugd/5d84e8_e2d79c83ad454fb6bc9060386a2bdb6f.pdf?index=trueIn PDF document text
    • https://6d4a8fb0-9a8a-4850-8aa1-2b5706121c9a.filesusr.com/ugd/ff2e72_e67e4477f50b4c85b3e26e29cee518fa.pdf?index=trueIn PDF document text
    • https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_2e896900dfb94444aec55e9abc0d0556.pdf?index=trueIn PDF document text
    • https://0ed7c29b-d5f2-4290-8b47-add6aa38300d.filesusr.com/ugd/32a223_f1a6d53798ea4b0284a48c0787664823.pdf?index=trueIn PDF document text
    • https://45f61934-b4a1-4335-a9e3-e142d9465b5b.filesusr.com/ugd/0dd040_c5b5ec9cd8924cd1b339dff8eed4043a.pdf?index=trueIn PDF document text
    • https://3dbd840c-7861-42b4-b064-af52d1d2f4eb.filesusr.com/ugd/86319b_5fe9d7aeea0749218469bd9a99e3d18e.pdf?index=trueIn PDF document text
    • https://b9ecad59-ee1c-469f-8402-ddbad3bf215f.filesusr.com/ugd/84dab8_86f6ce9f303b419fb50994e7811b4110.pdf?index=trueIn PDF document text
    • https://37523d11-79cf-4eb3-ada4-f05de57c71ee.filesusr.com/ugd/275374_9734296786a14e4cb7111480061e5ec0.pdf?index=trueIn PDF document text
    • https://aaf8962b-2ea5-4403-bfea-7c32f2b3f77e.filesusr.com/ugd/8f3a65_7fcfe891e85c44e190424b47496a04ca.pdf?index=trueIn PDF document text
    • https://1a899ca6-11bf-4464-971e-4bf0b885e765.filesusr.com/ugd/4ac3ff_9eddf80bc1ad4633bef3fdffcf621f4b.pdf?index=trueIn PDF document text
    • https://61090d85-22e6-4724-b969-52a17785150c.filesusr.com/ugd/952c2e_1978a7d8f66a4fc9bfb443cbf5695940.pdf?index=trueIn PDF document text
    • https://30c74dc1-c3f2-4e71-8253-1ec84f3b94e1.filesusr.com/ugd/b8c6fa_bdc700f901cd475e93ec5b7830ee66db.pdf?index=trueIn 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_off00012acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ACF 5268 bytes
SHA-256: 34f703d007ea4ab2f2c7def1b790b6318d6ba34a401cadc320bd126d5bfcea60
font_01_sfnt_off00013ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CA4 11800 bytes
SHA-256: 76eed972609158ca8f7e16dca137707ee98a7fbdc2d4b353eb39831ee58b40f3

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