Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1119401952356a…

MALICIOUS

PDF

75.0 KB Created: 2021-09-23 17:59:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1eabdd082a3d4ade956f331ec8441e07 SHA-1: c12552d4ce87f3f2082c1b559c83d34dca7593c1 SHA-256: be1119401952356a592aa41064bc6472e9bd02750407453b9d3ee98caa75ea25
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. The 'SE_CLICKFIX' heuristic suggests the document attempts to trick the user into running a command, likely to download and execute a second-stage payload from one of the numerous embedded URLs. The 'SE_CALLBACK_LURE' heuristic further supports a social engineering pretext, possibly for phishing or a scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://garglob.ru/uplcv?utm_term=noori+nastaleeq+for+android
    • http://ventmetal.ru/userfiles/files/xozinebevoma.pdf
    • http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/megedolamilefumowula.pdf
    • http://star-transform-moscow.ru/uimg/files/winisaxegosujexipetemubu.pdf
    • http://likuidart.com/files/ckeditor/files/88398077658.pdf
    • https://www.studioline.ie/ckfinder/userfiles/files/29899977336.pdf
    • https://gabinetpro.pl/kosmetyczka/krakow/files/49223208640.pdf
    • https://airxps.com/userfiles/files/keroxepumuwapejikasu.pdf
    • http://conkheror.com/ckfinder/userfiles/files/74319237599.pdf
    • https://olterus.net/contents/files/65446074199.pdf
    • http://smartpaintingplus.com/userfiles/files/74386019136.pdf
    • http://sasolution.kr/userfiles/file/sojanasevati.pdf
    • https://medpressa.ru/files/file/63018392937.pdf
    • http://vodova51-53.cz/files/59425635630.pdf
    • https://pr-dienst.ch/file/lululujo.pdf
    • https://goldengatetaichiqigong.com/userfiles/file/jagabuzavaleminuwidavama.pdf
    • https://lenaoyunlar.com/calisma2/files/uploads/35685476510.pdf
    • http://avsa.org/sites/default/files/images/files/80179943229.pdf
    • http://vtdsbinhthuan.vn/public/uploads/userfiles/file/wibumetobusigisaduzitit.pdf
    • http://vncdata.net/app/webroot/uploads/files/77053253546.pdf
    • http://articolo17.it/siti/usr/foto/files/56916913843.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf7c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF7C 16792 bytes
font_01_sfnt_off0000d793.bin
ef26a5bfe39f7476f93d6d3a744a8aaf5d34bf97816620978c467c1cda657c6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD793 10468 bytes
font_02_sfnt_off0000ef3a.bin
e9443369731ef81e48b56ca993e3e58c15f0344adc1dbf181f8df1f199c96bd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3A 18244 bytes

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