Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7e9ce296571571…

MALICIOUS

PDF

75.9 KB Created: 2021-05-06 12:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 63e768de92672cc3b1bf6c0854c711c3 SHA-1: 29e59ec6a7250c75d438f2cec0378723f8dbd639 SHA-256: aa7e9ce2965715713a4ba387d6005b74edbc38a8c908b4afe91dd3af6bdc69f6
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, with one pointing to a suspicious domain ('dugedepap.ru') that is likely part of a link farm or phishing operation. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://dugedepap.ru/strik?utm_term=fred+perry+factory+outlet PDF link annotation
    • https://cdn.sqhk.co/joxopejufito/amPDkq5/wuponotumunafikatiguk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476445/normal_60544c56ae7af.pdfIn PDF document text
    • https://cdn.sqhk.co/jexozumumanu/o5AOk6r/big_ideas_simply_explained_books.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477638/normal_5fdafdf4715a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461202/normal_5ffbf3915c488.pdfIn PDF document text
    • https://cdn.sqhk.co/lupokuna/a0SivIh/ganavabevunufusago.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/OGXiggf/amazon_music_family_plan_vs_spotify_family_plan.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/fajeloninesitel/xisavunuvutekubabid.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/waterfall_model_in_software_project_management.pdfIn PDF document text
    • https://29c5b005-6627-40e3-9da1-9f9d3dbc34dc.filesusr.com/ugd/7ad284_c5230addcb6348a496cafe62d7c05362.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pegebunov/zuwogobutajiwute.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/graco_click_connect_jogging_stroller_orange.pdfIn PDF document text
    • https://089130c0-62ae-4bf1-a93c-656440fe8451.filesusr.com/ugd/738632_c61d7305075641f4a75ead15c06fa4c5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/jefagowixeresovan.pdfIn PDF document text
    • https://50e0a74f-e7a5-4ac3-a7a6-4cdd7b1ad00e.filesusr.com/ugd/8a9d9f_36d636adff3b4cc494d692c30c34bd87.pdf?index=trueIn PDF document text
    • https://329f26c8-0235-4118-8622-173d264d9cf1.filesusr.com/ugd/221f3a_d965c65092dd4adeb37f13bee0267dd6.pdf?index=trueIn PDF document text
    • https://1e1f235d-56dd-4976-b20d-d38e3fe7b172.filesusr.com/ugd/210b45_79022a002685486bacdc56e19d647570.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/memexelu/19510718758.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/adobe_captivate_2019_user_guide.pdfIn PDF document text
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_e614f3ee72bc4d59bb8877506e9f674c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/38942986184.pdfIn PDF document text
    • https://0503187d-52cd-4237-9521-a3cb9bf551ae.filesusr.com/ugd/5bb01c_9e44a3538b2f4f1c9a65c1e240115091.pdf?index=trueIn PDF document text
    • https://3f054cde-0430-4828-89d0-5f77035cf230.filesusr.com/ugd/d93890_dc686a7847b549ffaa77c117faf7616e.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_off0000e898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE898 5028 bytes
SHA-256: 085ecf61bfd10262bcb2879c603339e368a806fd6ecb9c648cde89f04ea502fa
font_01_sfnt_off0000f9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D2 11572 bytes
SHA-256: 1761d71a836e78a409e6d2d9d744d1cdc82926e6cfa65deb87151283ab612550

Open this report in the interactive analyzer, or submit your own file for analysis.