Malicious PDF — malware analysis report

Static analysis result for SHA-256 1744af512e65effb…

MALICIOUS

PDF

86.4 KB Created: 2020-10-25 23:45:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9204153710c468d834d664d776c5fec3 SHA-1: de12f71132e321dd97d65868dc21f479e7e54dda SHA-256: 1744af512e65effb6d0d1d8922fed2343f61d6c3c3d744177d0e83fd799d4a94
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ggtraff.ru/strik?keyword=power+system+analysis+and+design+5th+edition+solution+manual+free+download In PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
    • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/7788805.pdfIn PDF document text
    • https://vidojibirulon.weebly.com/uploads/1/3/1/0/131070792/daborafokutudo.pdfIn PDF document text
    • https://kugakisan.weebly.com/uploads/1/3/4/3/134390280/bitagatej.pdfIn PDF document text
    • https://lewelekokoje.weebly.com/uploads/1/3/4/3/134333059/tisanutulas.pdfIn PDF document text
    • https://batagokefo.weebly.com/uploads/1/3/1/0/131070859/4a9ea.pdfIn PDF document text
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/2455727.pdfIn PDF document text
    • https://tuvozejuwubox.weebly.com/uploads/1/3/4/3/134323710/vodepobiro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372378/normal_5f8a2fe852463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f909b695270b.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fezenur/62696519450.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/zomizusigematutora.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/37722358774.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/43586237676.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/83001186968.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/8048315099.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/motogarod.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/upkar_psycho_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/eichmann_in_jerusalm.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00011bc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11BC6 26672 bytes
SHA-256: 60da58c9cc59e0f05106955d4ee270dd514dd43429e934d4e8c564db2899d17c
font_00_sfnt_off0000caa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA5 6380 bytes
SHA-256: fe90e1de71b23ee22d2ee48aa7727487d97734e76b95c9c5f5ba7fd183c0a4f3
font_01_sfnt_off0000dc31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC31 5640 bytes
SHA-256: d0d5350f975a81d6aa3df141c46e13c6fc8c214d5769f1400d27d4ab55854b1c
font_02_sfnt_off0000ef4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4A 12988 bytes
SHA-256: 2e37393d2693e029a9170a325db1fc6401786285fd121233406385a3f0f511e0

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