Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e046664b6090b16…

MALICIOUS

PDF

69.2 KB Created: 2021-03-20 20:50:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c5ea28c337ec426f99af4bf89efd4c20 SHA-1: 697402a224d0547b91f3fd1744234ff2c2fa47f5 SHA-256: 2e046664b6090b1631e4936d8e81e5c12220ffd1b87689721e458ed7c1dd828d
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially harmful websites. The embedded URL 'https://ponafet.ru/wix?keyword=peek+a+blocks+hippo' is a primary indicator of this redirection behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://ponafet.ru/wix?keyword=peek+a+blocks+hippo PDF link annotation
    • https://xugilatopuke.weebly.com/uploads/1/3/4/7/134746985/vuferenolugebeto.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/ha74Njb/50021007095.pdfIn PDF document text
    • http://helplnstagramcontact6088756.com/napananexijolifixifaoz2k0.pdfIn PDF document text
    • http://tetupamino.mywebcommunity.org/dafovodotijemavu.pdfIn PDF document text
    • http://myfavoritesun.xyz/fast_racing_3d_game_mod_apk_latest_versionhl18a.pdfIn PDF document text
    • http://pusovemolexed.scienceontheweb.net/xelolakidun.pdfIn PDF document text
    • https://zumaboletafu.weebly.com/uploads/1/3/1/4/131454272/kubodemevej-bisuzag.pdfIn PDF document text
    • https://vawanateriti.weebly.com/uploads/1/3/0/9/130969814/4859910.pdfIn PDF document text
    • https://filudatobo.weebly.com/uploads/1/3/2/6/132681654/kawagile.pdfIn PDF document text
    • http://intekzafast.online/mipodelugotude6gkd4.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/INwjcje/max038_function_generator_kit.pdfIn PDF document text
    • http://praktika-ingenieur.com/blaine_county_sheriff_uniform_packeqh10.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/how_to_grow_butterhead_lettuce_from_seeds.pdfIn PDF document text
    • http://dodajavux.scienceontheweb.net/how_do_i_get_the_radio_code_for_my_honda_element.pdfIn PDF document text
    • https://cdn.sqhk.co/sawusuzi/B1ohajb/vuvaziteworisatupazatu.pdfIn PDF document text
    • https://cdn.sqhk.co/goduwonon/jhUvjde/jalosa.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/0ab347c4-4e34-4ede-ae02-f01aee976716/demonic_witch_costume.pdfIn PDF document text
    • https://f039f7e9-c7fa-441d-bf3d-2f0e35d6be10.filesusr.com/ugd/80685d_a9b769241fe24030ad09b738eae77fa7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ff31bd-f57c-4095-8fa0-cbaf562bbbf3/vizio_model_e48-c2_user_manual.pdfIn PDF document text
    • https://5fb42ee6-a9be-400a-98f2-f9d4b9f720c8.filesusr.com/ugd/1813b3_5b503bc154d04d7d9d12ebea5e73d38b.pdf?index=trueIn PDF document text
    • https://a62e46b8-d933-4087-892c-e5439cec6991.filesusr.com/ugd/e9cba9_45be5133244241f89fa6b1c3147fd6ea.pdf?index=trueIn PDF document text
    • https://507d1b22-ea03-4061-a262-f79425337ca2.filesusr.com/ugd/a374b9_08b42f564c6748b7bba3d74f21d37b91.pdf?index=trueIn PDF document text
    • https://f635e5d9-31b1-4f19-b758-7a623be10181.filesusr.com/ugd/6cf0f5_175e84beb21a4dc494d7590cf2261948.pdf?index=trueIn 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_off0000cf8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF8E 5132 bytes
SHA-256: a1cff83d76a2e167a1adcd8e61001e8748f20d60e236fe6ab5e28311eb85d05e
font_01_sfnt_off0000e101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE101 10900 bytes
SHA-256: c0a21b05c049a9a1653bbe53603c370a6f81200f448c7d03aa1c50a541acd6b2