Malicious PDF — malware analysis report

Static analysis result for SHA-256 d096222f47181fce…

MALICIOUS

PDF

82.8 KB Created: 2021-09-05 18:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: aa7ca772021b5f3980b91112bfaaaebc SHA-1: f587b809ad1b6d759fe0b025e48754d79ff6c546 SHA-256: d096222f47181fced9607c74a4b776fef0d6d8c5c2ca9be1e38a033c5149bfbb
216 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The presence of numerous links to potentially compromised websites and the 'SE_CALLBACK_LURE' heuristic suggest a phishing or scam attempt, likely directing users to call a fraudulent number. While no scripts were explicitly extracted, the PDF structure and link farm indicate an attempt to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 https://condominiovillage.com/userfiles/file/xavixejotidujawaxorabi.pdf In PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/668eb302ceda0f420c7b371e5b8aad54/resupugibalupadav.pdfIn PDF document text
    • http://lab4050.com/upload/editor/file/33938608984.pdfIn PDF document text
    • http://zamel2.pl/userfiles/file/tobemuloxibepepe.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/28943834652.pdfIn PDF document text
    • http://gazomotor.com/allinone/file/sojejezu.pdfIn PDF document text
    • http://erainbowrealty.com/userfiles/file/45216456064.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/3b3715123b234566d1fc58a751ee7635/83540005322.pdfIn PDF document text
    • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/gjojej10u3n720abp0eh2kset0/7495277346.pdfIn PDF document text
    • http://bfr-bialapodlaska.pl/userfiles/file/gavudorutudalopefufupemat.pdfIn PDF document text
    • https://ladangmimpi.com/contents//files/mukisemuvewumakerevog.pdfIn PDF document text
    • http://ankamet.com/userfiles/file/pizaridisuxepu.pdfIn PDF document text
    • http://mazdooradda.com/userfiles/file/ravefonigoxizofeletafu.pdfIn PDF document text
    • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/96757791668.pdfIn PDF document text
    • http://zdrowejaja.com/Upload/file/jowagonivujewidatiduwi.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/nawekurubagezisubifuv.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb516ccaea---wisaxajepomitur.pdfIn PDF document text
    • https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/bfa0f6eb38cf5d6fb22cc0757eace337/govazisepini.pdfIn PDF document text
    • https://madhubanindiancuisine.com/nbloom/fckuploads/file/xizulu.pdfIn PDF document text
    • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/9fc599f0c6a2a5f87e24f624768d7ff1/vapowobaw.pdfIn PDF document text
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/8add128ae5a9c9402f9be29cec316425/rowufaxitali.pdfIn PDF document text
    • http://noithatnhapkhaugiasi.com/luutru/files/92685539327.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=cerfa+15646%2A1+pdfPDF 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f1c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C1 10412 bytes
SHA-256: c34c1b394f8aa8dee4cf1d65da76bc3eb435e21317c0b264a2e97283dec63bc4
font_02_sfnt_off000109a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A6 20736 bytes
SHA-256: e7efdf0b94acb49ada52e4a0a209a34253086895c98ae4231ec7748eaaef73eb

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