Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be5154dff59acc6…

MALICIOUS

PDF

77.0 KB Created: 2021-05-17 10:13:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: eeb9ed0a05ea6ddbcd650250b25be5e0 SHA-1: d9f9a2d44f16967972f930f44cca751befdf415a SHA-256: 2be5154dff59acc6b0af33c544c4256000d0a8a84a54d61bc916c491b64fb14b
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=automotive+sales+business+plan+template+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393628/normal_603b578b34100.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383923/normal_603576c2e2241.pdfIn PDF document text
    • https://lusajero.weebly.com/uploads/1/3/4/5/134598272/mevav_sidojuwopa_kanobetobiwav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414498/normal_6001c76179c34.pdfIn PDF document text
    • http://fomijegi.mypressonline.com/how_to_connect_sony_a6000_with_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486743/normal_6053a0b811f67.pdfIn PDF document text
    • https://xikisujegowo.weebly.com/uploads/1/3/1/8/131856166/c6498b9fb0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384045/normal_601f901016726.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500425/normal_5ff2558ea7cad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://184d393c-d2ff-49e5-bbcb-48626b1dbf88.filesusr.com/ugd/49be48_e98e157f45144c16bf9adeae426587ff.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e48de21-8239-4685-bd74-755809325d5d/60489593188.pdfIn PDF document text
    • http://moxadokikubod.onlinewebshop.net/berisaxevozuzus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfc3c54d-bac0-4e5b-9007-68661adb9793/imagenes_de_caras_de_emociones_y_sentimientos.pdfIn PDF document text
    • https://5071cc05-3fa2-46b1-b944-d2523ca4b51d.filesusr.com/ugd/62e2c1_90602f372ca14472831438998e7622ad.pdf?index=trueIn PDF document text
    • http://donijexufenu.onlinewebshop.net/how_do_i_know_what_size_kenmore_refrigerator_i_have.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7476fc5-0240-4ac0-9c80-1c4fe8c66240/daliwuxekirigojave.pdfIn PDF document text
    • https://9e1e9198-0fe7-4103-8084-fdcc6befb8d5.filesusr.com/ugd/2f7815_0e08d69227c342c6af791ff04235eed2.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF22 5468 bytes
SHA-256: 9e823433688b53ca9d262313276093b5e451688f384dac537c39b6b9bac82be8
font_01_sfnt_off000101b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B3 10780 bytes
SHA-256: 9a95a97e2ab9f599915b10f0222e19f3f0fdfb0ccbbd4e0140908ad08787adcf

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