Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffee97513564d63e…

MALICIOUS

PDF

154.1 KB Created: 2021-03-10 10:06:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7a69e3175067169345999b89a657045b SHA-1: 94a3d6bf6fea6b6a292e2b43e349c0529d1c062d SHA-256: ffee97513564d63e859db8c1e116625ed0d33d61c1c39c73c98756da6d75247f
146 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a callback phishing lure. The PDF contains numerous external URLs, many hosted on disposable domains, suggesting an attempt to distribute malicious content or redirect users to phishing sites. While no scripts were explicitly extracted, the presence of external links and the phishing lure indicate a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9930

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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://soxebez.ru/award?keyword=astral+cpvc+pipes+catalogue+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470982/normal_6041e4f777344.pdfIn PDF document text
    • http://nitafibejuze.mygamesonline.org/71687745521.pdfIn PDF document text
    • http://zuluwana.iblogger.org/parkitect_decoration_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/sazipuvaxiv/hhhjiat/moving_expenses_spreadsheet_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445871/normal_5fdc54fceb396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469831/normal_60158ec00ec8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403822/normal_6029f37163dc7.pdfIn PDF document text
    • http://migarosovimopem.22web.org/dnd_5e_bard_guide_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494430/normal_602ab5b046854.pdfIn PDF document text
    • http://mutujejeturuduf.medianewsonline.com/descargar_comentario_biblico_de_william_macdonald_gratis_en.pdfIn PDF document text
    • http://feludekinopotas.scienceontheweb.net/48710701194.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376379/normal_5fda15f877de8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490539/normal_5fc9fb13017f8.pdfIn PDF document text
    • https://cdn.sqhk.co/mareduviger/3jgiigd/pofosatakape.pdfIn PDF document text
    • http://punoxezozijus.iblogger.org/gosunanaxi.pdfIn PDF document text
    • http://ropewelopison.iblogger.org/analyst_notebook_9_user_guide.pdfIn PDF document text
    • http://nexofozupugasi.mywebcommunity.org/lyman_49th_reloading_manual.pdfIn PDF document text
    • http://wopizup.mypressonline.com/can_i_use_my_phone_as_a_remote_for_xfinity.pdfIn PDF document text
    • http://manaxupupili.iblogger.org/cuando_es_el_dia_de_la_madre_2020_uruguay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_602a945a6fdb4.pdfIn PDF document text
    • https://cdn.sqhk.co/suvotoruwot/dUehchc/30321021085.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://kabumosubeno.epizy.com/siguvob.pdfIn PDF document text
    • http://kiwaxujunexozet.epizy.com/28795415814.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001dde1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DDE1 5148 bytes
SHA-256: f302ea71df64387d0c273ae3d4334b8ee5892db884fdc8ac2a3f88e1be87ac1b
font_01_sfnt_off0001ef7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EF7A 15680 bytes
SHA-256: 375536ad0be273966ed13eff0f564fbd480f03733573c8133e9c6ce339e741a5
font_02_sfnt_off00022037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22037 16304 bytes
SHA-256: 8507b93c6d64510e7f6a338e1f0c47c27754cba6a89bd8e6322cb0e987ea8bb8
font_03_sfnt_off000235f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x235F4 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
font_04_sfnt_off000243f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x243F4 6084 bytes
SHA-256: bd4c63a3cc141a8529ed512d7d7dc7e10fb0a4036df3819a387899e7e8c73a48

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