Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bed3e33f897a1e6…

MALICIOUS

PDF

89.9 KB Created: 2021-03-16 03:29:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 97aa43497812a0c1ee908bfd9eecc4e2 SHA-1: 02866b1314ec1119eb60fa3c9ce845ec3f545797 SHA-256: 1bed3e33f897a1e603012386c70a3a6ecb6c30d8e53d8b9f4886a9640af9dd71
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, indicating a high likelihood of malicious intent. It contains numerous external links, with a significant number pointing to potentially malicious domains like 'dostafood.xyz' and 'druttle.ru'. The presence of a link farm suggests an attempt to distribute further malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/strik?utm_term=pathfinder+kingmaker+wiki+advisors PDF link annotation
    • http://dostafood.xyz/vetedet5hqa1.pdfIn PDF document text
    • https://viwosexoteb.weebly.com/uploads/1/3/4/6/134631328/mawuzapar_votanopupuxo_rimivelorod_kalimeso.pdfIn PDF document text
    • http://domainlimax.xyz/graduation_reception_templatesgi22l.pdfIn PDF document text
    • http://supportcopyright.net/baby_growth_chart_girl_head_circumferencer61q9.pdfIn PDF document text
    • https://mabobuloxulekev.weebly.com/uploads/1/3/4/6/134692970/xizerevomexu.pdfIn PDF document text
    • https://gasilarax.weebly.com/uploads/1/3/4/5/134595303/xodijaxoxal_boxijefotelu_bumovimipamate.pdfIn PDF document text
    • https://fezakuji.weebly.com/uploads/1/3/4/4/134490841/voxolekusasavuf.pdfIn PDF document text
    • https://pilologalegalek.weebly.com/uploads/1/3/0/7/130740349/7867705.pdfIn PDF document text
    • https://fiwofufoneronup.weebly.com/uploads/1/3/1/0/131071066/diwupa.pdfIn PDF document text
    • http://instapriz.website/pozedobomumafal225fg.pdfIn PDF document text
    • http://mpvideo.org/bodas_de_sangre_mejores_frasesbojv0.pdfIn PDF document text
    • https://wupupuredizuso.weebly.com/uploads/1/3/4/8/134894828/toxoxotejenoda_rajivewojul_nibudofop_luvagokepaf.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/16eeeaa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://320f262d-053d-461a-9009-498fa3b044f5.filesusr.com/ugd/8e680a_b306dac212af4548b991df9c228511b9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/4liker_app_instagram.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/36724058403.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/google_earth_map_er_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/setajemokujo.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/sample_interview_questions_and_answers_for_bpo.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/wopuzosokaxoweresab.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/casio_exilim_ex-s20.pdfIn PDF document text
    • https://810dce77-56ab-4324-823a-3549757f4eab.filesusr.com/ugd/1fad07_1d1b6925cd654f1a923078a4426c121e.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_off0001228d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1228D 5504 bytes
SHA-256: d5eaf75b6e396f1cd6b8f5db5ed204512d7e3f0a31b9da7a5ded131c88ed8be1
font_01_sfnt_off0001353b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1353B 10844 bytes
SHA-256: 900216b0fe4a6b951e4a568ecef3056cfc5c21ae6861f04742de39ca0599dc0e

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