Malicious PDF — malware analysis report

Static analysis result for SHA-256 790aa2e0ec3c2bd8…

MALICIOUS

PDF

65.0 KB Authoring application: Mobipocket Creator First seen: 2026-05-09
MD5: f51099a80814fc6786618b792ab894bf SHA-1: 4062a0d313f3669fb803a9d5191affd9106c38aa SHA-256: 790aa2e0ec3c2bd85a1159c368d9eeadd79699d91473096bb3f7018bb17b6b5f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a mechanism for redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 http://nowebibo.vipiski-besplatno29.icu/uploads/2020/01/27/bipazatuboxunaf_lifomekeveke_dudelugel.pdf In PDF document text
    • http://sshvug.com/uploads/1/3/0/4/130490006/sijinifa.pdfIn PDF document text
    • http://alliedmedstaffing.com/uploads/1/3/0/6/130604449/judifebekuxidizepo.pdfIn PDF document text
    • http://oaktreecapllc.com/uploads/1/3/0/2/130288798/papepofa.pdfIn PDF document text
    • http://techconnectwest.net/uploads/1/3/0/4/130483345/weloxanekotelil.pdfIn PDF document text
    • http://roswellwaterproofing.com/uploads/1/3/0/4/130490151/zanasowije_tefefosozafono_sadufux_kadejokutajezu.pdfIn PDF document text
    • http://sim.pcigra.ru/uploads/2020/01/29/rijurinibunotegovol.pdfIn PDF document text
    • http://bestperles05.fun/uploads/2020/01/28/598a556.pdfIn PDF document text
    • http://year4atcharter.weebly.com/uploads/1/3/0/5/130550769/loluzanitero.pdfIn PDF document text
    • http://therealmommy.com/uploads/1/3/0/5/130539908/1066677.pdfIn PDF document text
    • http://fakafodalu.zincadoexpress.com/uploads/2020/01/28/besud-wojekuzibaz-peremupebodez-boxilomedamoxev.pdfIn PDF document text
    • http://mrccustomdesigns.com/uploads/1/3/0/4/130476104/13e63de440.pdfIn PDF document text
    • http://buttonsnmoore.ca/uploads/1/3/0/6/130639950/supuwis.pdfIn PDF document text
    • http://moneytipmonday.com/uploads/1/3/0/5/130588733/f968b4f7fafb75.pdfIn PDF document text
    • http://cabalpulse.pw/uploads/2020/01/29/8872174.pdfIn PDF document text
    • http://rcaleel.com/uploads/1/3/0/6/130603789/7c3f60db9d.pdfIn PDF document text
    • http://soko.jfam.ru/uploads/2020/01/28/reminijiro.pdfIn PDF document text
    • http://smiledefenders.net/uploads/1/3/0/3/130323774/6832289.pdfIn PDF document text
    • http://mermaidtidying.com/uploads/1/3/0/6/130639110/fd44af97a64e14d.pdfIn PDF document text
    • http://poppinpioneervalley.com/uploads/1/3/0/5/130551181/7221536.pdfIn PDF document text
    • http://bfhscheer.weebly.com/uploads/1/3/0/6/130639885/gawitobatutirewuse.pdfIn PDF document text
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/5/130539403/130539403.html#nsync+bye+bye+bye+songIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn 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_off0000147b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147B 10076 bytes
SHA-256: 4269655a05789029a4494cc7f027b74c089e7fe25207069bc4cae145b20c7987
font_01_sfnt_off0000a60c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA60C 16228 bytes
SHA-256: 378288d3133907284a1dd708aec606fa45674349f7e67e9eaedc79a8f6af9139
font_02_sfnt_off0000bb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB08 5504 bytes
SHA-256: c155ba1b4ced1cca6f14794868ba3cf90eccd7f80a748edb96fd540540fe5c72

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