Malicious PDF — malware analysis report

Static analysis result for SHA-256 149e82dafc394400…

MALICIOUS

PDF

85.1 KB Created: 2021-09-05 12:03:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 3e69ae67438e85a9477056b344536be4 SHA-1: 5db983bb97372d7dbec35489dc79cbceacb8f470 SHA-256: 149e82dafc3944002b6ed74f9e6c29e0a2794d8a5a7e5e6ae784583b8b413038
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a link farm pointing to compromised WordPress sites and disposable hosting domains, likely intended to redirect users to phishing pages or malware download sites. Although no scripts were explicitly extracted, the nature of the URLs and the 'compromised CMS upload link farm' heuristic suggest a potential for exploitation or redirection to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://garglob.ru/uplcv?utm_term=devanti+ice+maker+user+manual PDF link annotation
    • https://nhathuydesign.com/wp-content/plugins/super-forms/uploads/php/files/l82n75186gibg6leip30qho6oo/99536019867.pdfIn PDF document text
    • http://azizolace.cz/images/file/98214717061.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160727aa3afd3a---60929014904.pdfIn PDF document text
    • http://jagdrevier.hu/upload/images/file/novadadinorebibejujipama.pdfIn PDF document text
    • https://silverstonedevelopments.com/ckfinder/userfiles/files/gemowutobezozozodojorur.pdfIn PDF document text
    • http://marinda.ru/pics/images/file/85220817368.pdfIn PDF document text
    • http://burchiellati.com/file_fck/file/jojivepiwi.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/18720690181.pdfIn PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16085d5ea89a5e---11909558722.pdfIn PDF document text
    • http://miet-boot.ch/images/uploadedimages/file/tikavifubegoxodapew.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/243d66bcb635ae03bd61c7083e13fbdc/mexidadoje.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160adc56bc79f9---64480207168.pdfIn PDF document text
    • http://korea-seals.com/ckfinder/userfiles/files/9516445539.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/7bec7162c350adc8d9dd0895233491ba/98526400786.pdfIn PDF document text
    • https://trunglamdecor.com/uploads/userfiles/file/87692406515.pdfIn PDF document text
    • https://aalatour.com/basefile/b2caalatourcom/files/42486756038.pdfIn PDF document text
    • http://galluccifaibano.com/userfiles/file/313561668.pdfIn PDF document text
    • http://yanartekstil.com/firma/files/33269708338.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1612a8639290a9---99915132555.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2021061502132873499.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608fe9250e7e2---rokajenibekuzufu.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e1b79ba00a3---deletibofoguwuxofobilu.pdfIn PDF document text
    • http://brooklynsmokeshops.com/admin/images/file/10896722532.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db778d8ee14---50858738456.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://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_off0000e927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE927 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001013e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013E 10532 bytes
SHA-256: a0307fba5bc86cb1bbeb06f6bce1c6031894bc9b9e06f38699b97300c198cc96
font_02_sfnt_off0001193f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1193F 17520 bytes
SHA-256: e103f5d045894de8c60e4b86797207f158c4a42bbc3ca9676f80407b6aad3200

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