Malicious PDF — malware analysis report

Static analysis result for SHA-256 472da230c324ece3…

MALICIOUS

PDF

159.5 KB Created: 2021-07-04 05:28:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: f7801a2507ca589221f2f1f00f6efe09 SHA-1: 21e724a5dbe4d7b25dbdc4ada283b133d881c07f SHA-256: 472da230c324ece3c31e71ad92afb4691692452c5ae2a560f915f56f4bac5163
204 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a phishing and trojan threat. The 'SE_CLICKFIX' heuristic suggests the document attempts to trick the user into running a command, likely to download and execute a second-stage payload from one of the numerous embedded URLs. The 'SE_URGENCY_LURE' finding further supports a social engineering pretext for user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9470

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://smidgel.ru/uplcv?utm_term=minecraft+duct+tape+dungeon+tactics PDF link annotation
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091355087834---29151905297.pdfIn PDF document text
    • https://moscowfashion.net/content/xuploadimages/file/selakipupagutitixivogafa.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b43476d76---vujifosufeweza.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160797cf257407---guxakarelilupazifaresopeb.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608880a49a8df---77903027271.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/45c1a5fbc19e6eee4b1cfc26a7315645/79288032974.pdfIn PDF document text
    • https://cissud.eu/uploads/ck_editor/files/rurasonuwibokawozexatemu.pdfIn PDF document text
    • http://wo-kop.pl/userfiles/file/limitu.pdfIn PDF document text
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160702c4e6d029---dosapijefuvi.pdfIn PDF document text
    • http://hf1968.com/clients/48820/File/1855673902.pdfIn PDF document text
    • http://blessedfamilycovenant.org/clients/c/cb/cb727bc273eb4203dc66fb73741ae5ae/File/tajuzi.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/91252177302.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/72130330382.pdfIn PDF document text
    • https://dannysacademy.com/ckfinder/userfiles/files/40892841409.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/70794e5713c06293acf3741bd4309d2b/mavafizetijumelo.pdfIn PDF document text
    • http://ippinnudon.com/uploads/files/90717112336.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083fc23d0d54---redevejul.pdfIn PDF document text
    • http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160afbac351e5d---wakered.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083d7feb3a84---80279473683.pdfIn PDF document text
    • http://accomplishtheimpossible.com/userfiles_ati/file/kaxorutamilotekid.pdfIn PDF document text
    • http://stpatricksreunion.com/clients/84553/File/razelogezalog.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/zofaxudutufufo.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a26cde59899---derulenudejikezeveb.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608567acc6d0f---goxokonawegekuwatufe.pdfIn PDF document text
    • https://regiefranchet.fr/userfiles/files/18870217699.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a5f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5F5 24480 bytes
SHA-256: 58a4442ef4728d7ae1528e02db781ead7537dd2f399a424ab5cb36d76754938f
font_01_sfnt_off0001ee65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE65 10840 bytes
SHA-256: 0fb85c2f8966dac8cb4648c80dd428e6fcc10ea8315e7bcbf8565438e5535427
font_02_sfnt_off00020752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20752 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd
font_03_sfnt_off00021c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C93 22204 bytes
SHA-256: 8b36d6aae00f8be0a9fa9ad82c465d0e116a4de61db1aeb800dfa97ade59b47c
font_04_sfnt_off00025548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25548 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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