Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade7c1066d67d0e9…

MALICIOUS

PDF

76.3 KB Created: 2021-04-07 03:18:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e1e990fadc421677f9b982f0df719ba SHA-1: a167c7f70d9c54340fa12ea3b343a537aba7beef SHA-256: ade7c1066d67d0e9edcbb90048ee3a82de0311d3401e795aaff05c47eac81fcd
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to distribute traffic to various malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing. While no scripts were directly extracted, the PDF structure and heuristic firings point towards a malicious document likely used as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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/award?keyword=how+to+make+money+book+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370263/normal_5fcb49e821085.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380211/normal_600108472a4a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387590/normal_5feb69e0eae19.pdfIn PDF document text
    • https://cdn.sqhk.co/zijikunu/gd1jjY0/vosor.pdfIn PDF document text
    • http://knitfqph.site/kapansrlop.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/train_platform_number_and_coach_position.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/how_to_win.the_lottery.pdfIn PDF document text
    • https://cdn.sqhk.co/bisuligiga/ahdWgjl/fofuzivefazitemolonufudu.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/29111836443.pdfIn PDF document text
    • http://all-host.site/xijixowomanozuwonerotazaah2vd.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/fhcykgc/hashtag_generator_free_facebook.pdfIn PDF document text
    • https://cdn.sqhk.co/rubovadu/2wsijij/how_to_go_viral_on_youtube_dhinchak_pooja.pdfIn PDF document text
    • https://cdn.sqhk.co/tibakekavero/HjjJEgf/winiwimu.pdfIn PDF document text
    • http://idealicaitalia-ufficiale.site/helter_skelter_lyrics_and_chordsyx85h.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/mejotegodin.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/input_attribute_form_html5.pdfIn PDF document text
    • http://mmamba.ru/milukejuregeramogemoj812jd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387571/normal_60137c8cc411b.pdfIn PDF document text
    • https://cdn.sqhk.co/winogolelog/jfUhbXo/craft_guide_minecraft_1._12_2.pdfIn PDF document text
    • http://csxmoney.info/whirlpool_wfc7500vw2_owners_manual7l7ch.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/5iagIFX/syberia_2_nintendo_switch_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387816/normal_5ff532c386922.pdfIn PDF document text
    • https://cdn.sqhk.co/jusulikipe/ih5XOhj/85065383017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a529afa0-707c-494d-9cee-e9df2360aa12.filesusr.com/ugd/a6e48a_b517a73d1a50488c90535188efafe4b0.pdf?index=trueIn PDF document text
    • https://ff743420-c5e2-4527-a456-70ddb2a1abd8.filesusr.com/ugd/5178f2_2f41a66f5b4a49b3a8f086389a1d0b23.pdf?index=trueIn PDF document text
    • https://c3e810f9-371e-40b9-9a0b-4695a496ec77.filesusr.com/ugd/2c7c49_7e9b843e1633465d9098f805a40646b1.pdf?index=trueIn 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_off0000f25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25A 5240 bytes
SHA-256: bfd9a3db861ef78b472e0f35b5f097567d321fca739d4caa9760cd09c565b688
font_01_sfnt_off00010433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10433 11288 bytes
SHA-256: 03e802fae9b3a82ef08b449b221d3ba435dcb36e4d8445984493428a81c42602