Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac8e2700df95ee0…

MALICIOUS

PDF

92.2 KB Created: 2021-07-04 16:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 0965d42d5f74164b750adc38ca7bacda SHA-1: 92868af8f470a2719c33226a73b5c126057309c5 SHA-256: 5ac8e2700df95ee00dd3d27aca916a68104ae46fb7f8e2ca53bf90feb0970b6e
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript

The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_CLICKFIX' heuristic suggests social engineering tactics, instructing users to execute commands, which is a common method for bypassing security controls. The presence of numerous URLs, many pointing to compromised CMS upload directories and disposable hosting, further supports a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9746

Heuristics 8

  • 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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://audit-advisers.com/userfiles/file/83037652017.pdf In PDF document text
    • http://alexandercdg.com/clients/36029/File/53898395261.pdfIn PDF document text
    • https://binarbaidservices.com/public_html/userfiles/file/18143078591.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/qp6n6v8kkbi73oul8aik8kdnvh/78286172993.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b55cdfbcc58---58786876755.pdfIn PDF document text
    • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/487c9bed8e054fa3fdb389de1b3b5521/42883108575.pdfIn PDF document text
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbde36af10---8016609066.pdfIn PDF document text
    • https://netiko.ge/img/Data/file/nataxadivuvawupabi.pdfIn PDF document text
    • http://dmhu.eu/uploads/uplib/file/leweloje.pdfIn PDF document text
    • http://agrobud.net/uploaded/file/49332755460.pdfIn PDF document text
    • http://hanhthien.net/uploads/file/94193563279.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/1c5a5c6b3a40bcf11e18bf609a0c510e/kavitamorat.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/69b13fd72a22b921ec42f46c01307306/jotamudosav.pdfIn PDF document text
    • http://kashima.cc/userfiles/file/tenod.pdfIn PDF document text
    • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766378cbb6e---pemawokidugupopadatupuse.pdfIn PDF document text
    • http://mu-rrrc.com/userfiles/file/lujumafedikorinira.pdfIn PDF document text
    • http://keitbg.com/images/files/55599584911.pdfIn PDF document text
    • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/chc930rd3iiu36eh0htb1995t3/sopodigegipenofuvuke.pdfIn PDF document text
    • https://media-get.com/userfiles/files/77654558388.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/da15f5b8c743c52f10843ebb7de49298/pekupejoxijimalozep.pdfIn PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/acee56a459876c2dbf3ed2787a5e5705/faleti.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/70454018772.pdfIn PDF document text
    • https://cesiedizioni.com/userfiles/file/43628537872.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16096001f4d23e---zajafufidovurorodoxurelak.pdfIn PDF document text
    • http://www.bash.cl/media/file/76425824942.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbf465c2dc---12964602572.pdfPDF link annotation
    • http://bfr-bialapodlaska.pl/userfiles/file/tamaxejonuxoberotuko.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+frame+two+windows+side+by+sidePDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBE 10800 bytes
SHA-256: d1be4d06a8c4b790059c8da2ee0fbeeedfc9772852d267f26b698b465c1f1513
font_01_sfnt_off000106a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A9 16344 bytes
SHA-256: 756b691c13b983eafa03e47aa9f0b6ad58d5b72d5a208688d70894321573a878
font_02_sfnt_off00011cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD0 17676 bytes
SHA-256: 7ac12934287ffddea1b49ca59e4f3250e3d263386c40683d49506dcf7a0b9fd2
font_03_sfnt_off00014a86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A86 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1