Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ddb360059aadda…

MALICIOUS

PDF

78.8 KB Created: 2021-07-01 20:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b7472a56002f65aa7560e38c7c55683d SHA-1: 88f66e18667c21740a2330e47140d2c80e69b89c SHA-256: 60ddb360059aadda8aa3564f66fbb4e0d55e4b5804a0c1184045af81de461cba
176 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous links to compromised websites, suggesting an attempt to redirect users to malicious content. The heuristic 'SE_CALLBACK_LURE' further suggests a callback phishing or tech-support scam pattern, aiming to trick users into interacting with malicious entities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9844

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
  • 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.
  • 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 http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16077b7ecbf3a6---62254509314.pdf
    • http://poorclarescork.ie/images/13207631879.pdf
    • http://omonetach.pl/foto/ilustracje/file/sufemim.pdf
    • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/c52d09cca75c6924971aec975de526a6/xojetujuwebegulowazaj.pdf
    • https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/a1c28df855c884c6c6d9462b0dd6da21/54413548960.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9144a360a6---79893889576.pdf
    • https://purefeeling8.com/data/file/40605904968.pdf
    • http://tpdw.pl/userfiles/file/77925454841.pdf
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160ba8799d334b---gagubovemujewilidofefuro.pdf
    • https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/a4bc1f55caae381faa493454038704ca/popidojep.pdf
    • https://cristalensi.com/public/File/45857498322.pdf
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c24d25dd2---galeredozapafunum.pdf
    • https://liniagdanskzydowo.pl/files/78223438571.pdf
    • https://asset-books.com/userfiles/file/monelekilimul.pdf
    • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/ad8c7b07e65bb9e7a7f70d514cb2d2cb/11266334607.pdf
    • https://lesfeesdelhetre.fr/upload/files/suwixuvedi.pdf
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8dff64d4f---tasurisilotubagigoluxa.pdf
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/5cd9984a4370ddb05cd007ac249a8d40/vosigew.pdf
    • http://ikkosushi.com/uploads/files/13075126684.pdf
    • http://asfalon.com/__files/file/mufejuxevusovadirofedu.pdf
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4ea86ca9af---bezegizexinijixivuradet.pdf
    • http://kovacsoltvaskerites.hu/images/file/40195356755.pdf
    • http://www.zywawiara.pl/pliki/47676515162.pdf
    • http://ccforum.kr/uploads/file/1622316308.pdf
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/d6104baadf7d6abb35db97298eb33ccb/62121743098.pdf
    • https://mayurherbal.com/userfiles/file/paladopadarefitifezebofu.pdf
    • http://placc.info/up_image/paboxenatokekanusibewugaw.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=in+patient+treatment
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/99fa63cd0e5e8eae9c4e9dafaa8e8f34/xekejaxizor.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d416.bin
80832ef210dcb9d67852193ab7dc4aa1dad94775a4c47766610aecf7dff1747d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD416 16744 bytes
font_01_sfnt_off0000ffb7.bin
39a6233a5ca55fb57c9758b2c20367a25c07addb2cf4f434b8bebd64c7783698
pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB7 10028 bytes
font_02_sfnt_off000115f3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x115F3 16792 bytes