Malicious PDF — malware analysis report

Static analysis result for SHA-256 11b58f7ca4db69e6…

MALICIOUS

PDF

67.1 KB Created: 2020-10-24 05:25:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 046a54f7186eeb3ed0a8ff63f7cba1a4 SHA-1: 6910a10c6c79d0c50391d63799fee518be977a6b SHA-256: 11b58f7ca4db69e625e3ba468a2ebd099e29d3d5bbd2edd18e99917d160fe0cf
184 Risk Score

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://gettraff.ru/aws?keyword=maslow+1943+hierarchy+of+needs+pdf In PDF document text
    • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/7697364.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/4883934.pdfIn PDF document text
    • https://sopowifumerage.weebly.com/uploads/1/3/4/3/134355846/54e4db.pdfIn PDF document text
    • https://dudererojafa.weebly.com/uploads/1/3/4/3/134362298/1819513.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/5066238.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372105/normal_5f8e6b2ed7aab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_5f90cb419fc54.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b752f50-2a17-4631-adca-176c30bfb8a9/jexezoxatuliruloda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27f52b3c-5e8d-4754-af08-a1f08859bdcf/15715425462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/566a3238-a00a-4772-b298-b62e53ed0090/69938058776.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d82e3b58-eabd-4281-a314-a4df296f67fc/14543935361.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e592770d-cf56-4ea8-967b-fdc1275f8666/38306184185.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc3a51a0-f35b-4c22-b883-fc983774aa61/jafimugo.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/bulletproof_food_roadmap.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/77629996853.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/variables_on_both_sides_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/34971757050.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/23376654694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e96d344f-7efb-43b7-8e6a-5075b7db845b/98979478798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5331bba6-ca7e-4777-a186-06d11c8a137a/sizefipitiwotabekage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15ad9603-0775-43c3-8672-30dbb2632589/jifiguten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f37ac4f-040b-4383-bb05-a7c04c2b2c6d/segupurobapuvute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97d613e8-fde0-46ec-ae87-171dc7f1b37d/89785338737.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC35F 5900 bytes
SHA-256: e47697b9b4626c54dd29bfe626a8165dbf1a7261c441e3a109bdbc88e78d63e5
font_01_sfnt_off0000d79a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79A 11444 bytes
SHA-256: 364c91188e151f10478f15303085ee1765c82e221d57f00bda19e6d5f7c3cabf

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