Malicious PDF — malware analysis report

Static analysis result for SHA-256 699a53e8a4da45b8…

MALICIOUS

PDF

65.2 KB Created: 2021-02-25 03:19:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7c3700fe2397a676aca90d6054c0df02 SHA-1: ecab2c0bc61590aca5c640eb585b58605ea29f5d SHA-256: 699a53e8a4da45b8dddfe61b32262ba8310e7df7b00aad9f0e5c51af81eef238
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=is+skim+milk+homogeneous+or+heterogeneous PDF link annotation
    • https://cdn.sqhk.co/zesonixiv/hehfjaX/light_me_up_inside_mp3_download.pdfIn PDF document text
    • https://simiwulizolur.weebly.com/uploads/1/3/1/4/131455232/xelezubijazomu.pdfIn PDF document text
    • https://sejumajofejopib.weebly.com/uploads/1/3/2/7/132740214/6154006.pdfIn PDF document text
    • https://gefozusep.weebly.com/uploads/1/3/5/3/135346228/899888.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_600b131556396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492900/normal_60241f63aa0f1.pdfIn PDF document text
    • https://mufewikusa.weebly.com/uploads/1/3/4/0/134042586/92be804082.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467975/normal_5ffe27a7dd0b1.pdfIn PDF document text
    • https://wowujisalot.weebly.com/uploads/1/3/4/3/134349860/bedizenuzawepov_feguroveguvuv_fosupob.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/hggezhd/rgb_led_strip_control_box.pdfIn PDF document text
    • https://cdn.sqhk.co/bozomixega/zhhyodd/sniper_traffic_shooter_new_shooting_games_fps_download.pdfIn PDF document text
    • https://wosapinilesodiw.weebly.com/uploads/1/3/5/3/135347506/465a7ad9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416675/normal_602a273065415.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/ghhcbij/vizesusameturer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_60122412e870c.pdfIn PDF document text
    • https://nurafotupitu.weebly.com/uploads/1/3/4/4/134495453/kexipasafexen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zonivezada/banudonugozarosizafeza.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/fijijokenumofenakuniwinek.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/vuxosijelo.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_off0000c480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC480 4888 bytes
SHA-256: a8a303f0b999f763e11426a37f6d2ce0270a9301f1d9a42bb62a47a8f321720c
font_01_sfnt_off0000d4f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F9 10112 bytes
SHA-256: b3cd39646718fc14be546f2774330db95a0a3416ed5cf1fb93731ad1dce64748