Malicious PDF — malware analysis report

Static analysis result for SHA-256 275e54a548f816f3…

MALICIOUS

PDF

95.4 KB Created: 2021-03-13 13:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 2b1b60b2c0e0e3d1f3eb99f0445d9aa8 SHA-1: d8302b562f2e141e7c43528615d9f62e086ddd2c SHA-256: 275e54a548f816f383ab5a7d3bb4ea7aa3a818995242d3414dac07b1055e120a
126 Risk Score

Malware Insights

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

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many hosted on disposable domains, suggesting a link farm or redirection mechanism to malicious sites. The document body, though heavily obfuscated, appears to contain metadata related to 'swtor black talon affection guide' and the wkhtmltopdf tool, indicating it's likely a lure document.

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://maypoin.ru/wix?keyword=swtor+black+talon+affection+guide PDF link annotation
    • http://wutulesarox.iblogger.org/investiture_controversy_worksheet.pdfIn PDF document text
    • https://xevezuwojuko.weebly.com/uploads/1/3/0/7/130740392/visekorug.pdfIn PDF document text
    • https://bowepatajipama.weebly.com/uploads/1/3/1/4/131438296/mikin-tixozikelu-jozenasedow.pdfIn PDF document text
    • http://giwitap.getenjoyment.net/10233336811.pdfIn PDF document text
    • https://fobewesepujub.weebly.com/uploads/1/3/2/3/132303403/wejuxokimunudif_lavakupine_nalefizegi.pdfIn PDF document text
    • http://sosuziba.mypressonline.com/tujekaj.pdfIn PDF document text
    • https://xawimoveparuz.weebly.com/uploads/1/3/4/0/134040397/ff9d9.pdfIn PDF document text
    • http://bottlechainworld.com/moonlighter_weapon_guidez9knc.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/04esIgc/no_crop_video_instagram_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefulurifu/bBlcjfr/90074016689.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/a56yc9U/kadejuparano.pdfIn PDF document text
    • http://wepirafigezatid.22web.org/45961771066.pdfIn PDF document text
    • https://pujuxapalijened.weebly.com/uploads/1/3/6/0/136009243/dazurawixik_gogezu_mukopezona_bevisuwa.pdfIn PDF document text
    • https://cdn.sqhk.co/jurufovowufu/dicxMjg/jubilalore.pdfIn PDF document text
    • http://natur-green.fun/dr_driving_unlimited_mod_apk_download0jsy1.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://s3.amazonaws.com/nitirew/43407396851.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/bubbleupnp_apk_paid.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/pabepidugowofewigapewiwub.pdfIn PDF document text
    • http://xologikaju.atwebpages.com/levositunavabuxut.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11264 5292 bytes
SHA-256: c7ef8daa5f3d9ef6ae91f28b572655d80e1bc11f4e65b0cf6ea1355a8a671c2a
font_01_sfnt_off00012479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12479 11660 bytes
SHA-256: f3358f7707b27089c43931e3e38d217f94ccb476ed7616403fe49075900dfa1e
font_02_sfnt_off00014ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CA8 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd
font_03_sfnt_off000161d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161D5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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