Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e5ed7a9a3bf9f2…

MALICIOUS

PDF

71.8 KB Created: 2021-03-06 11:03:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 26b092c2a7106a9b48652f3ff05ae2a3 SHA-1: 0b76cf6154478f4ba1b7241ad61e0e465e1be2d2 SHA-256: c7e5ed7a9a3bf9f20fa7b351513faab279ac8fddf437d84a0d50ab004987bfad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://xajibur.ru/wix?keyword=westinghouse+digital+tv+power+cord PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486354/normal_6043166382b7e.pdfIn PDF document text
    • http://trickyturkey.com/zlatan_bolanle_mp4_videoisydi.pdfIn PDF document text
    • http://medicinfo.online/lowefomafafezikwfj4r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_603c51e3e96ce.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/kovabolilawudebi1g3qz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480403/normal_60262d3583c8b.pdfIn PDF document text
    • http://am-sound.ru/23854411188qo3rl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388428/normal_5fec921b8c887.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/dc414eaa-29dd-4584-92df-c684effbebcb/doperuweragumafidekuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75d61299-0738-481a-a7ab-59054204497e/voxevoselokawupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b22b0c0-200e-494d-b937-54a5d834b0d7/vabesefu.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/babylonian_gods_and_goddesses.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/papum.pdfIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_02c8174cab1e4637ba5b402883b0a2c3.pdf?index=trueIn PDF document text
    • https://528f6e5c-6927-42ef-b7a5-a8f9c349750c.filesusr.com/ugd/07b979_ebab6029eac1428ca5c5bad34526bd44.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lebejos/10732245394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b00d035-0ec3-4daf-9d12-ef4fbb284b57/beruwupudusux.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/tijegakofovi.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/billo_video_song_hdyaar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2d3b390-67d5-4cf5-abb5-2f267a5b85dd/53141226395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/249fcdf7-a558-4132-a77c-a9df971fd3f1/47604603452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1b79529-b67d-4b99-89c3-11d9a06d8560/mucusless_diet_healing_system_by_arnold_ehret.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD28 5384 bytes
SHA-256: a68dd0c3906972609ac04054f646d1374b2ee5d3921ca60b3b3c7241b125126d
font_01_sfnt_off0000df8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8B 10412 bytes
SHA-256: c7cf28f8cbfa89e5017ed415ebc03113d4c17f959a5325a383ae2d8e38fec62f
font_02_sfnt_off00010323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10323 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176