Malicious PDF — malware analysis report

Static analysis result for SHA-256 7275789680c48edf…

MALICIOUS

PDF

67.4 KB Created: 2021-10-03 02:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 7110630a88abb9e2a121a3f03cbb7e23 SHA-1: 013e260ee00a628c9934d7fce09429580f41d275 SHA-256: 7275789680c48edf8f151afad2b451209754b8e7a4c6323471b19625d379e787
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF employs an image-only lure, a common tactic for phishing or malware delivery. It contains numerous embedded URLs, suggesting it functions as a link farm or directs users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or downloading further stages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://coretry.ru/uplcv?utm_term=uno+flip+card+meaning PDF link annotation
    • https://htcpost.vn/vietpost.vn/img_content/file/46296176466.pdfIn PDF document text
    • http://ikkosushi.com/uploads/files/lobekuvunirojugemejuduzir.pdfIn PDF document text
    • http://cutyoursupport.com/userfiles/file/8121390052.pdfIn PDF document text
    • https://floresdeserrezuela.com/aym_image/files/42775063084.pdfIn PDF document text
    • http://rakkhunnursinghome.com/user_img/files/90863601439.pdfIn PDF document text
    • http://theleadershipworks.com/PO2/UPFILE/userfiles/files/38384104893.pdfIn PDF document text
    • https://pharma-tools.eu/galeria/file/xesemamoguxedo.pdfIn PDF document text
    • http://qdxqw.com/uploadfile/file/56191271909.pdfIn PDF document text
    • http://hz-kontejnery.cz/ckfinder/userfiles/files/dinipamivitamotepujuz.pdfIn PDF document text
    • http://atrsara.ir/resource/files/27047726532.pdfIn PDF document text
    • http://www.deewanalarab.com/up_imgs/xikusunitob.pdfIn PDF document text
    • http://pate4me.com/userfiles/file/90136294927.pdfIn PDF document text
    • http://sga.cc/uploadfile/file///2021092601542218.pdfIn PDF document text
    • https://amigo-shop.105h.net/upload/files/dulasujaze.pdfIn PDF document text
    • https://ropaalmayoreo.com/images/userfiles/file/divomotadibenelowusave.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/fopipoketigaz.pdfIn PDF document text
    • https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/vufedewener.pdfIn PDF document text
    • https://z87992961.com/upload/files/20210915191751.pdfIn PDF document text
    • https://njshore.drinkpoint.com/uploads/files/96189046460.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/ab20d5b72096d987f0c1c3e32767871d/91641914659.pdfIn PDF document text
    • http://inwama4.vn/webroot/img/files/rewijelozofenomuzemi.pdfIn PDF document text
    • http://net-marketing.hu/images/files/9220387575.pdfIn PDF document text
    • http://www.gpkoaee.ru/ckfinder/userfiles/files/tovumakodemoj.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_off0000acfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACFC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c50e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC50E 14116 bytes
SHA-256: 2ab9aa34a27015259f1dc920faaf641279041a1d8d77afa3660ad81f5890886b
font_02_sfnt_off0000e826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE826 10704 bytes
SHA-256: 6d7475ce74941356c919e692a9b1a101897ed31f1127f24310ae0ec49c221e34

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