Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ea290e03217491…

MALICIOUS

PDF

77.5 KB Created: 2021-09-04 18:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 56ad18d661bb4e06de3ff8f0fce221f5 SHA-1: d0d857304bc95761657c6b96bce77d8e52c9a592 SHA-256: 56ea290e03217491165ec65aec5966b86ee99ac92951beec83a1d476ced0daae
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to potentially compromised websites and a visual download button lure, suggesting it's designed to trick users into downloading further malicious content. The presence of multiple external URIs and link farms points towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://fittbikese.hu/files/file/63569700123.pdf In PDF document text
    • http://119pump.net/d/files/97823077464.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099e42054e4e---29794980266.pdfIn PDF document text
    • http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/95331102023.pdfIn PDF document text
    • https://casabresciani.it/uploads/file/86473193270.pdfIn PDF document text
    • http://novena99.com/uploads/files/202108170023165999.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/36812466263.pdfIn PDF document text
    • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/q2oop6t8qglc8lnfg40s69a2rl/31406968830.pdfIn PDF document text
    • http://deltools.com/userfiles/file/3800967206.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ovl6bjbe8psin4vhqde1evr9i1/14382362084.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/zedinufosixojibalanuj.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/xutarekid.pdfIn PDF document text
    • http://cn-junsheng.com/upload/file///20217302464472.pdfIn PDF document text
    • http://suvagcentr.ru/userfiles/files/24371298068.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/gi10247756u7p0knbbjpga100a/82737009375.pdfIn PDF document text
    • http://coffee33.ru/archive/file/18581379053.pdfIn PDF document text
    • http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e9bfa4eeb---gugerodupanuwejelawopo.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c3f33379da---suvozurazepugapo.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/98029880506.pdfIn PDF document text
    • http://tingyi-bnb.com/CKEdit/upload/files/94359164700.pdfIn PDF document text
    • http://anupbolivia.com/images/files/gagijanasupowixametedawaj.pdfIn PDF document text
    • http://amexeuro.com/an3_Uploads/file/12559980099.pdfIn PDF document text
    • http://www.contectrade.hu/fckfiles/file/ladinidowikogemeri.pdfIn PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/24412877438.pdfIn PDF document text
    • https://tavio.ru/files/file/67572579011.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=keynote+upper+intermediate+workbook+pdf+chomikujPDF 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_off0000c2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2FB 19240 bytes
SHA-256: 848522a5cd4a920e0cfc818d5634c691316ac3317cce2a9f49a6dc1544e84708
font_01_sfnt_off0000f599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF599 11324 bytes
SHA-256: 7e818f7bc4b3c8d9d9812b03229254ef59db69e0660f89493f89129738844d81
font_02_sfnt_off00010fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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