Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e2dc88d4d1b1c1…

MALICIOUS

PDF

69.6 KB Created: 2021-04-30 06:53:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 75d845354e2a9e14a72c1e76d4d744c6 SHA-1: 4318bece1cb803fdee406b60d11504858c4f0726 SHA-256: a1e2dc88d4d1b1c1848c20b5a89e295cce8495dc2277d203a4bd63c8ad641059
156 Risk Score

Malware Insights

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

The PDF document is detected as malicious by ML classifiers and ClamAV, and contains numerous links to compromised WordPress sites. The document body suggests a lure related to a game trainer, likely to trick users into visiting malicious links. No scripts were extracted, but the presence of multiple compromised links indicates a high likelihood of phishing or malware distribution.

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://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/4100177a9c0b829bf7c912cd294faf51/wiwamatiru.pdf In PDF document text
    • https://lawina-radom.pl/files/file/luxitufikewokoxelod.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/e66bbcbfa380964a86853820bf9f1374/98031767224.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/gcjjouhpl80mdkv7uuj6q2ire4/47016653664.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/0d78d7070631ead661c0d17e214ce800/naridujevi.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fef60483cc---83704098379.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5e325d442---8867628002.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d64791a5b6---juxagejumegogasuwepobobab.pdfIn PDF document text
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/55bf090395f5be80f7fffdf850d12ea7/kovijozorelevepawokes.pdfIn PDF document text
    • http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/mbkk1eb558ava42f4olsilp8r4/20080891487.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a4413dc1b---fisogowidigudidugazejago.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b57a7ea7d1---zulusuwobo.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf5ca1c388---xenenuv.pdfIn PDF document text
    • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/a0316841a76eb19616b3ae4054e588b7/77175052922.pdfIn PDF document text
    • http://anatolianlgs.com/userfiles/file/98975841369.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/995c6be3bdce57ecf00d815759be9c0e/melefemilapavaki.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160761cbc41958---zeginu.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/37127eae767aa26ac88a9b16225d7e7c/33662320648.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=assassin%2527+s+creed+3+trainerPDF 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3EB 5088 bytes
SHA-256: 2e3b03c04603d55382a3533fa6a1673e00a40ab4f869a7a93eb413671f713d3d
font_01_sfnt_off0000e54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE54C 10868 bytes
SHA-256: eb41c86c3f09e128242363851a78ae4f0914d5a2506e5b1ca4ef1ea3d88f6006

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