Malicious PDF — malware analysis report

Static analysis result for SHA-256 801ee5c387d568f2…

MALICIOUS

PDF

87.0 KB Created: 2021-03-18 15:01:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: da537723c051b9b1cca5505006215cb2 SHA-1: 899d7f91e88e349278b11fc6567f6201ac40a033 SHA-256: 801ee5c387d568f2350e2c897cb80fc3b55c4428b82bd4109e808a1ba6ab4408
126 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that redirect to external websites, including one that appears to be a link farm designed to attract search engine traffic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to phish or deliver a secondary payload. The document body, though partially corrupted, suggests a lure related to 'causes and effects of imperialism in india'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/wix?keyword=causes+and+effects+of+imperialism+in+india PDF link annotation
    • https://cdn.sqhk.co/gujamozulas/aihgfjg/soximafowomo.pdfIn PDF document text
    • http://microdigitalmeter.xyz/dungeons_and_dragons_monster_listeobo4j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418987/normal_5fccf974231ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473340/normal_602afaba95b39.pdfIn PDF document text
    • https://cdn.sqhk.co/rufopunuk/ejeihjf/garofavoxusozilajolunenir.pdfIn PDF document text
    • http://dress-russia.ru/famupapiwapetouer0x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425209/normal_6021659dd898b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427085/normal_60083340cacb9.pdfIn PDF document text
    • http://top-odejda.com/615834819083apz3.pdfIn PDF document text
    • https://cdn.sqhk.co/zalenelavup/HyjcicO/jubavikasodawol.pdfIn PDF document text
    • http://quickpapp.online/616406030523au2j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446264/normal_5fe36f0aeb614.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/uSficgc/kuxusowodemorowuwa.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
    • https://30c0d994-bee2-4d79-bc91-d4aaa7251653.filesusr.com/ugd/0962d9_9b0c74026224461db785d3cc196a711a.pdf?index=trueIn PDF document text
    • https://41c240d9-b4af-4f88-8fa4-2a41cce3a287.filesusr.com/ugd/01bc73_6bfaa296b7724412ac8cab970fa87850.pdf?index=trueIn PDF document text
    • https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_67c36c3eb7df45748e0e748dc7a98e14.pdf?index=trueIn PDF document text
    • http://rabuxudizuxu.epizy.com/areopagitica_summary.pdfIn PDF document text
    • https://8c56b32b-3398-45d6-9c0b-b55146621f16.filesusr.com/ugd/6924eb_3e77bc3d41354c34bfac4b0ce0e2584d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/genedesowul/tozasom.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/23995455251.pdfIn PDF document text
    • http://bilunijo.epizy.com/82935282321.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_off000109b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B3 5208 bytes
SHA-256: a9cdd3a3f15d213033394f01eefe29a3db02aa33c41bc1fa53779970dbc2cd52
font_01_sfnt_off00011b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4C 10832 bytes
SHA-256: ee708037acb3617cb8ff03d43b4b692b542392cf5158d61ef7c6acb63d5b838a
font_02_sfnt_off0001401a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1401A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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