Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b54f59a7a68a0a…

MALICIOUS

PDF

72.3 KB Created: 2021-06-13 08:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dd3eedd44982dfe76d40881124153198 SHA-1: 1327a9731d5d876788221c2e65dddf418eac369c SHA-256: e9b54f59a7a68a0a3baf790140b9a49988654d2e5500ab67c6a6418f00e5e540
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 0.9996

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 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://huntic.ru/pbw?utm_term=cooking+mama+nds+rom PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484814/normal_602a6b97851df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418984/normal_6008b12adca0a.pdfIn PDF document text
    • https://fanivimijebi.weebly.com/uploads/1/3/4/5/134594820/metibaxifu.pdfIn PDF document text
    • https://xediziku.weebly.com/uploads/1/3/1/3/131384396/f919bf9a2e1bdf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456135/normal_604cd248f18e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421208/normal_606adba7f2ec4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407064/normal_5ff60f991c052.pdfIn PDF document text
    • https://meverofukibax.weebly.com/uploads/1/3/4/6/134620555/tepasudesulaluv.pdfIn PDF document text
    • https://muvepabeburok.weebly.com/uploads/1/3/1/4/131453329/refid.pdfIn PDF document text
    • https://logugutixolug.weebly.com/uploads/1/3/5/3/135393325/sokili_bejumavogusu_kegogi_sazupevipunot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448547/normal_5fef98b3448c7.pdfIn PDF document text
    • https://kemiponoza.weebly.com/uploads/1/3/4/6/134605011/sanamibuvivewiduse.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480580/normal_60be80f364e21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383566/normal_5fd21e9d6b750.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pibadaro.pbworks.com/f/44866653166.pdfIn PDF document text
    • http://popuwepux.pbworks.com/f/how_to_make_wing_chun_dummy.pdfIn PDF document text
    • http://fuxijovipa.pbworks.com/f/lasitazeneboduxi.pdfIn PDF document text
    • http://lalakabazu.pbworks.com/w/file/fetch/144677100/takop.pdfIn PDF document text
    • http://palejemevat.pbworks.com/w/file/fetch/144856014/45620246068.pdfIn PDF document text
    • http://zotemizivob.pbworks.com/w/file/fetch/144632928/somamodidab.pdfIn PDF document text
    • http://nunaruribeg.pbworks.com/w/file/fetch/144616881/will_there_be_a_sequel_to_straight_outta_compton.pdfIn PDF document text
    • http://palixazoke.pbworks.com/w/file/fetch/144867318/64613976543.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

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_off0000dc2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2E 5084 bytes
SHA-256: 8b27cfe743dc66130b0a6fc83438908c91df90a7a00f5ef262d767393ac4b4f7
font_01_sfnt_off0000ed62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED62 11160 bytes
SHA-256: 44dde005bba2f378fd4b2c7ac6f7caf15a178e9036ae5c4788f689bbd65f7f3b

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