Malicious PDF — malware analysis report

Static analysis result for SHA-256 1748ceae709c7074…

MALICIOUS

PDF

101.2 KB Created: 2021-06-29 13:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 200723360b3c58d6af844cc6f52e87c6 SHA-1: 927a943980888db974d6bf67c6ba4a6dcf6c7dec SHA-256: 1748ceae709c70742baf2061b812e688740ebd4d8778f21b9ceeb47d237ea568
156 Risk Score

Malware Insights

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

The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content or conduct phishing. No scripts were extracted, but the structure and URL patterns strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9803

Heuristics 6

  • 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.
  • 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://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/844d20e460bb2235d65f913044d4905b/84182045832.pdf In PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/05cdpgjho4p7pnu91fjvve1t59/37286144983.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c01a81f9ab---jakefusoxesuwuwufigobi.pdfIn PDF document text
    • http://nemdanangpho.com/uploads/2021-06-02/images/files/39508477.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608c04ec92c68---8262700053.pdfIn PDF document text
    • http://kxnjl.com/userfiles/files/32291251699.pdfIn PDF document text
    • https://nasroglobal.com/userfiles/file/23080888236.pdfIn PDF document text
    • https://mabuksusu.com/contents//files/71425087707.pdfIn PDF document text
    • https://weyergans-hcc.lv/userfiles/file/65425628465.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4690fac6c2---56616069445.pdfIn PDF document text
    • http://anhuishangbiao.com/upload_fck/file/2021-5-25/20210525221133875675.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d04dfc5a826---pajubipapi.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c25aa8550---zuwap.pdfIn PDF document text
    • http://year-c.com/upload_fck/file/2021-6-4/20210604183114772864.pdfIn PDF document text
    • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/16eba2a8bd21161a8ce86197f5116e11/79616110328.pdfIn PDF document text
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/e681d1af737e7663f98ee5cc9a79c568/poduxewopesikonubovikujam.pdfIn PDF document text
    • http://dietmoiquangle.com/webroot/img/files/wiruve.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/a1ded859e7382d977a74afda88d40b87/wevag.pdfIn PDF document text
    • https://hagepoorter.be/files/files/76377581716.pdfIn PDF document text
    • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/28ab50a3329c991bc0e4f359ddb2c49f/13976946987.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/449691b13a3c7897eda371fbb5431fc6/donumabinajetuwumabowez.pdfIn PDF document text
    • http://pogservice.ru/userfiles/file/deveru.pdfIn PDF document text
    • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab8f8b2e355---93264786751.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e5584351e---52554069956.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a277e45b61d---tulebuv.pdfIn PDF document text
    • http://bigandtallking.com/userfiles/file/zadedorisemubabotobete.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=time+space+distanciationPDF 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_off0001270b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1270B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F1D 18412 bytes
SHA-256: 2880cff2273cb36da7156aca509db1033678391ddb43f7d6ed7a32eff2a4f71e
font_02_sfnt_off00016e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E39 10492 bytes
SHA-256: a5b693bcd37084c9d84114242531b6f6f3a9901f3dbbad57baf59dfaf18394ed