Malicious PDF — malware analysis report

Static analysis result for SHA-256 7782bd5f2b06ae73…

MALICIOUS

PDF

42.1 KB Created: 2020-09-14 06:10:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0506b60fd6ace3a7053c87eec1468b16 SHA-1: 59f6f0ea3d387442b506fe58c2e862cbd2fd7112 SHA-256: 7782bd5f2b06ae7396b4544cb33db15be4719cbe0c8c451bb47db2d652d7180c
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links pointing to various disposable domains, suggesting a link farm or SEO poisoning tactic. One prominent URL, https://ttraff.cc/wb?keyword=point%20line%20and%20plane%20postulates%20worksheet, is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document's content appears to be a worksheet, likely used as a lure to disguise the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.cc/wb?keyword=point%20line%20and%20plane%20postulates%20worksheet In PDF document text
    • http://sijukiliv.baanphitaktaweep.com/uploads/1/3/1/3/131378960/vupixaredumusojo.pdfIn PDF document text
    • http://kojolelur.perfectpelvicfloor.com/uploads/1/3/1/4/131438164/8787555.pdfIn PDF document text
    • http://files.riverrunranch.net/uploads/1/3/1/3/131379219/7367903.pdfIn PDF document text
    • http://debiv.feel-flamenco.com/uploads/1/3/0/7/130775918/gikebo-mokad.pdfIn PDF document text
    • http://jajojif.dianekrys.com/uploads/1/3/0/8/130813604/6696628.pdfIn PDF document text
    • http://bibiku.cpsschoolcounselors.com/uploads/1/3/0/9/130969461/7822501.pdfIn PDF document text
    • http://files.icater2youtravel.com/uploads/1/3/0/7/130739986/saninaja_dikesudes.pdfIn PDF document text
    • http://tokitumuk.economicprojects.com/uploads/1/3/1/4/131483245/8741715.pdfIn PDF document text
    • http://files.sudaneseamericanyouthcenter.org/uploads/1/3/1/0/131070113/c0c2a8b6ebdd.pdfIn PDF document text
    • http://lodisimu.markyspartyrentals.com/uploads/1/3/0/8/130814469/2206703.pdfIn PDF document text
    • http://xaledajid.emmakayonline.com/uploads/1/3/0/7/130740558/bivemusodukuvabexo.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://cdn.shopify.com/s/files/1/0429/9731/7783/files/vidizumox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7228/0981/files/zoology_bsc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7932/6103/files/36162923677.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 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3C 5088 bytes
SHA-256: 7569a971e7626b06edfa10c6688684e30b85869d9ad3d0d02710fdfd8e62cc2b
font_01_sfnt_off00006b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 9784 bytes
SHA-256: cc23d36a5d7a3a98bf7b5974d7460804410ee6a60c54db5056288491a2b8a137
font_02_sfnt_off00008cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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