Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d0cf93ed36316c…

MALICIOUS

PDF

69.4 KB Created: 2020-10-21 16:50:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1f0a54178e0eb8e29acceac4645c4d37 SHA-1: 793d823534bdb4daced641f8f34464dcf48ea5c5 SHA-256: e4d0cf93ed36316c22d4741da88ff294f17474a7c1947f8ba56da9517d5426cd
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to disposable hosting and are designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.club/pify?keyword=apr%25C3%25A8s+un+r%25C3%25AAve+gabriel+faur%25C3%25A9+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users into clicking through to potentially harmful content.

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.club/pify?keyword=apr%25C3%25A8s+un+r%25C3%25AAve+gabriel+faur%25C3%25A9+pdf In PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/siboti_xojomopewu.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/dimejozepewuwu.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/ridoxugo-nefufirugakusi-pevogomoxi-relomikututezom.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/8709957.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/d2f1016926b4.pdfIn PDF document text
    • https:///kirby.radiofrance.fr,����������������:is_activeIn 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/1/0440/6493/1992/files/chaos_magic_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/alcaloides_del_cornezuelo_de_centeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/scotty_wallace_instagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4120/1557/files/jean_klein_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4156/9947/files/share_it_apk_android_5.1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78b9fec3-bc51-48d5-bfa6-b81d7693c0ea/vujemaravux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bf92fba-917c-4588-9987-c3e92438adc8/12302485782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/091bb47e-da0f-46e3-b43a-88efcf30955c/65216076517.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3d0528a-0b75-4fae-8ed6-7808012beff8/jikowuxevuzesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffb542e5-b6e0-4eb0-8945-51c9fa358c8a/julokonobek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c2f2c1f-97eb-4b91-8698-20eb7f9bf86a/gavawasuzosibaxopezej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78123d1a-a5dc-49ac-907d-5af06e5ee346/41091060765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e10fa69a-47ba-497e-a3b7-cff9de0f0de4/mobufikubotaparalameto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/521922a2-dea5-446f-bc5d-c4873a360ed6/29245717849.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/tax_administration_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/vivune.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA490 5832 bytes
SHA-256: e21858ffc16038cdb63aeebd7ac2f1771965aca1971155f435207105234651b4
font_01_sfnt_off0000b78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB78A 19224 bytes
SHA-256: 6efa33d40762e2962d60474c7c8be77f59d76f13501ac97883a98832c6917dca
font_02_sfnt_off0000f02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02C 16320 bytes
SHA-256: 5da2905060bf7a737cb94ec79f3fc8c7739271f404fb22d677971c480e97780a

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