Malicious PDF — malware analysis report

Static analysis result for SHA-256 098059b63b04ed3a…

MALICIOUS

PDF

136.3 KB Created: 2021-05-27 13:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3bde5338fbb7292dd0a06287845b35a6 SHA-1: 6b3e31e7e4249eb774246afc098e92099879db30 SHA-256: 098059b63b04ed3a96994f0966f9064fbecec1b9c67ee144565cfff28d4e02fc
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous links, many of which point to compromised WordPress sites. These links are likely intended to lure users into downloading further malicious content or visiting phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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
  • 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.
  • 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://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/34a8f93f31dbec0f031d9241264f245d/wigofowujasinarebapu.pdf In PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/fe5f6959e6771272b494b2ff102fa018/40568211742.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/mukesulezozugitasinozulog.pdfIn PDF document text
    • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e675c1e1b---56435915507.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/14302500000.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/12a4m9nor2f1spumgapjb3dqa1/6537121976.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec6a5ed7fc---14345355874.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/343b7ef6d876e11b2e5c121ca3907149/tagiwove.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607932fb22f59---44232744325.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e195fe04a7---ziriwarenebagubokul.pdfIn PDF document text
    • https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/d1eda8933731c2bb7da93fb603ef34a7/popojolax.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/eb37b0515920c0bbef340440e42106ea/90339627366.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099919fdc255---laxabixifawaxuwumidi.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e8e8bb80d---57166596954.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc4e70177b---zesolelidema.pdfIn PDF document text
    • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/976c800abc1b31ffbf185d4f13121196/vizuvixeginafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=vijayawada+kanaka+durga+telugu+songs+free+downloadPDF link annotation
    • 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_off000194ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194CA 5372 bytes
SHA-256: 6949a1a4315e824c2d8b3f7f87c3d44ba847d8e1aac24e95e9684bec3f72677c
font_01_sfnt_off0001a745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A745 10520 bytes
SHA-256: 24d326658f772c5b4236520f837a54fc8d1825a632bda184293c478a10800f49
font_02_sfnt_off0001c3aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C3AA 12748 bytes
SHA-256: 47c2d16d1c7cc3483fb6dfca3b6d7f970945f1eff42b99e009ff7a29df675480
font_03_sfnt_off0001ee26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE26 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
font_04_sfnt_off0002037b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2037B 3828 bytes
SHA-256: ef63efee89d7206e0eee901b2beb6a1024b1e02b29dbb38db219d87a04c25d33

Open this report in the interactive analyzer, or submit your own file for analysis.