Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c5fb531b8c3988…

MALICIOUS

PDF

100.0 KB Created: 2021-03-14 06:23:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 1f1980f62c76d829a15fd871cc6c6b1d SHA-1: a328e87d55fb9ba70a8b5bdc7754b7432fb8e44c SHA-256: 14c5fb531b8c3988494342632fa80612c7e94add2b3c1c7cd9408d2a3db866af
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains multiple heuristics indicating malicious intent, including a link farm on disposable hosting and ML classification flagging it as malicious. The document body, though heavily obfuscated, contains references to 'New York state dmv police reports' and 'wkhtmltopdf', suggesting a lure to a fake government portal. The presence of numerous external URIs, many on disposable domains, strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://pelibifir.ru/123?utm_term=new+york+state+dmv+police+reports PDF link annotation
    • https://rotarivinevi.weebly.com/uploads/1/3/4/5/134599250/sesajoda.pdfIn PDF document text
    • https://cdn.sqhk.co/nosimasiv/VMjdjil/csda_dance_long_beach.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/wijKrib/redstone_maps_for_minecraft_pe.pdfIn PDF document text
    • https://wifaborasumekig.weebly.com/uploads/1/3/2/6/132695644/97ac7b.pdfIn PDF document text
    • https://dizogesutupini.weebly.com/uploads/1/3/4/6/134631076/b72859bd.pdfIn PDF document text
    • https://cdn.sqhk.co/fejavegiwo/uUWijji/gta_v_zombie_apocalypse_mod_xbox_one.pdfIn PDF document text
    • http://pajuwepubawip.sportsontheweb.net/picadura_por_abeja.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxozowaki/ZggUigl/lightsaber_replica_obi_wan.pdfIn PDF document text
    • http://kipokefurur.mygamesonline.org/56828064739.pdfIn PDF document text
    • https://lisebilapuwuw.weebly.com/uploads/1/3/4/0/134096741/najipananimamabor.pdfIn PDF document text
    • http://felaxelibapef.iblogger.org/uk_postal_address_format_international.pdfIn PDF document text
    • https://cdn.sqhk.co/kiraxozi/dEjfVjd/59959056949.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fitatina.rf.gd/affinity_chromatography.pdfIn PDF document text
    • http://vujofif.epizy.com/29556938839.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/impact_of_social_media_on_youth_research_paper.pdfIn PDF document text
    • http://jiwamig.rf.gd/lulasusemedagojeku.pdfIn PDF document text
    • http://tutegijuvejok.epizy.com/37718046599.pdfIn PDF document text
    • http://kilarosine.atwebpages.com/6522642817.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/466519ec-f5e5-4858-b6a5-496bfb3f5912/gebajariti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dd391b4-317e-4c96-bb9f-a5b5ed583ba5/604_meaning_bible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f0cec07-9d27-4ba6-877f-ffd401060d8c/el_amante_japones_isabel_allende_resumen.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14929 5508 bytes
SHA-256: 2e5f0f1ecb23cd9d5ced896474e6ba4f5b478b008b29f60b458f8a3cab63c5cd
font_01_sfnt_off00015bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BF7 11460 bytes
SHA-256: ef3d34ca1fe3732ca791fdfb2b86ef57c0b739b916cffaedaa10a917b210d536

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