Malicious PDF — malware analysis report

Static analysis result for SHA-256 b11492fd2d33f86c…

MALICIOUS

PDF

43.5 KB Created: 2020-09-11 16:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0390fbb309520792ff755b07975c1253 SHA-1: 387f580a66e7c0bf60c990bcfce6084b2f742708 SHA-256: b11492fd2d33f86ccd5a8c4c79727ea7be03fd220b95ae96cd23100915f2cb96
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though malformed, includes the target URL, suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates an attempt to manipulate search engine results or distribute malicious content through seemingly legitimate platforms. No scripts were extracted from this sample.

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://ttraff.ru/wb?keyword=newton In PDF document text
    • http://siwab.hole-group.com/uploads/1/3/0/7/130739695/58ef9644.pdfIn PDF document text
    • http://files.ascentvideo.com/uploads/1/3/2/7/132712040/b6209614026.pdfIn PDF document text
    • http://files.roundmotor.com/uploads/1/3/1/6/131637606/299f60cdf6ece.pdfIn PDF document text
    • http://files.bestdreamlife.com/uploads/1/3/0/9/130970014/1778580.pdfIn PDF document text
    • http://files.boogiesandbarrels.com/uploads/1/3/1/3/131379085/rujipomorupon-noxegut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9729/2949/files/appetize._io_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7127/4146/files/59693335361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5376/0160/files/18060718878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3548/2529/files/31370877593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3524/7271/files/sample_communication_skills_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/beethoven_piano_sonata_no._7_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/degixikopidad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/game_guardian_8._53._2_apkpure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9361/2949/files/nevonilen.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off000069dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69DC 5200 bytes
SHA-256: 504daff2f71c9c88e06c7cf129492a477fff0472feeeca3438b4ef272d778f64
font_02_sfnt_off00007ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA4 10924 bytes
SHA-256: 317035f117d411ffeaa10961249f3448509f1db0db4587fd99014f7d3aede86b

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