Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75522767e2de7e7…

MALICIOUS

PDF

74.8 KB Created: 2021-06-05 16:46:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6da802c8c14444400a8b3167f0992a9c SHA-1: 5beb18ba64db42196b6694516f272a85e12e7fb7 SHA-256: e75522767e2de7e78682b7309902837775315b9aa66ddaec0162839a0e31ad66
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links, many pointing to compromised WordPress sites and link farms, designed to obscure the ultimate destination. The presence of a 'Minecraft pocket edition skyblock download free' lure suggests a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely to redirect users to malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://drafthe.ru/uplcv?utm_term=minecraft+pocket+edition+skyblock+download+free PDF link annotation
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/p250ae8kic1mcku97d9sgp5il5/tagisaneseweli.pdfIn PDF document text
    • https://guapa2.com/admin/fck/file/93944875669.pdfIn PDF document text
    • http://womensmentalhealthmd.com/clients/9/9a/9a9ccad1be43d50cbc9928f06550b956/File/pajamuvu.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/6b4846cc6d0d0fd9ba08fda59e993370/bojigivumubam.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/59c20b4f3bf635e522b44c7578f5dbb9/29416645211.pdfIn PDF document text
    • http://shqinze.net/admin/upimg/file/%5C/vatosugitasovu.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/3ae1876222815b28dff413180ff5481e/13103689189.pdfIn PDF document text
    • http://lbhodgereunion.com/clients/3/38/38e1f81cb1ac74d12d86c8ba87866b9f/File/fofifun.pdfIn PDF document text
    • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/29aa90ea2bc9ec79db6c310c97f63b28/vobogekolirelesibog.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16085a8f1352d9---bixetumibazutelogarujuv.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cd1fedcbc---kapukak.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/23mjgig6ssotu2t47dde28cnc3/sofevabufevofot.pdfIn PDF document text
    • http://bociany.sk/media/file/jigiluwawaturovoxavifam.pdfIn PDF document text
    • http://splogservice.ru/content/file/lolikobukukago.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16088e64789297---tisapadenodoxevamopin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e712b96e6bcb2328a9def3e2a0f965d8/gapanixaxejotufabep.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD713 5340 bytes
SHA-256: aa14fc1565596260901e53b095179772e698bd8022e7f95061ca9a8d0467aef6
font_01_sfnt_off0000e955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE955 11600 bytes
SHA-256: c2fcd9553cdd2184c417a1e2063c86c9275052088b88fc37e45857164592fc11
font_02_sfnt_off00010fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB6 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361