Malicious PDF — malware analysis report

Static analysis result for SHA-256 72ba10bec12ef5f2…

MALICIOUS

PDF

49.2 KB Created: 2020-10-01 00:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: e1adf4d268ed7ddb07c9a055ac73fde2 SHA-1: c38c5e0f2915af41eda35a756df95303ec39c185 SHA-256: 72ba10bec12ef5f26735b2a023d22a2e4ffbc391261ee775472ee1240c7ec520
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bukhari+sharif+bangla+pdf+book In PDF document text
    • http://wenitupo.gailrosethompson.com/uploads/1/3/1/4/131413603/dezevawoxijuf_pejimelekazuru_gowevamapi.pdfIn PDF document text
    • http://xebuxen.libbynotelizabeth.com/uploads/1/3/2/3/132303388/rasewomamufiri.pdfIn PDF document text
    • http://xogut.bartlettartdepartment.com/uploads/1/3/0/7/130739069/wizusofasex.pdfIn PDF document text
    • http://zutadef.trilliumwildedibles.com/uploads/1/3/1/4/131437241/92daf35d299a0.pdfIn PDF document text
    • http://files.gunjanlaborde.com/uploads/1/3/0/7/130776864/dipameves.pdfIn PDF document text
    • http://wodenuzaz.teachertraveldiscounts.com/uploads/1/3/0/9/130969497/giramis_rilino.pdfIn PDF document text
    • http://fedudat.ykiminframaterials.net/uploads/1/3/1/1/131164366/tokelolimop.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/d1b91486-d34b-4337-945a-8bf4904cb9e8/gugedawadipesezerabuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f834f02-536c-48ac-90a7-654dcdf20408/tuxapajelegadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c1e7e8a-202d-42b7-82fe-3b053b7b64d1/48466649799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e37c4ce7-626e-4784-becd-cf37859d6731/liwevuxugunulomogoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d9dce11-6bef-441d-9df6-36edf6d52930/bebafuwanixelapexufume.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCA 5556 bytes
SHA-256: db3f1bdce12e97c27f61bdfe010c465e010f1190f7f45982e23188cf2265dde9
font_01_sfnt_off000070a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A3 8348 bytes
SHA-256: 1d77b4e9933b6ce544294bd3091c985d4b952fceb0f48fd25fdca5cae549fd56
font_02_sfnt_off00008a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A72 14724 bytes
SHA-256: 40f1995966660eb84ddb1c325fa8b4a3bf52ff3d0a0d761f45a014309afc4007