Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2dd47d2b3d43a6…

MALICIOUS

PDF

89.6 KB Created: 2021-09-21 17:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 2a4222f544ab01c3eb8244c06fc8dd31 SHA-1: bde794493f03972eacff911ef36a8cb72adf58c9 SHA-256: eb2dd47d2b3d43a600d06f996f847f397d36e300c0d9e313ece1ac749e4b67bf
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which are hosted on disposable domains, indicating a link farm or phishing lure. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting the document's primary purpose is to redirect users to external malicious sites. No scripts were extracted, but the overall structure points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://irlanc.ru/uplcv?utm_term=perfect+iptv+player+pro+apk PDF link annotation
    • http://cesarrodarte.com/userfiles/file/luvabeku.pdfIn PDF document text
    • http://gaudi.tw/upload/file/namolonozarivivijoja.pdfIn PDF document text
    • http://schokoladenfontaene.de/idata/46629942629.pdfIn PDF document text
    • https://fo-prefectures.com/pages/files/jusimizufuxabobaxuneve.pdfIn PDF document text
    • http://jlicentral.com/images/authors/file/92263065861.pdfIn PDF document text
    • http://ncdesign.it/userfiles/files/97648178075.pdfIn PDF document text
    • https://terracetemayonetim.com/upload/ckfinder/files/53605206687.pdfIn PDF document text
    • http://abcbyspu.net/ckfinder/images_store/files/zugeremozanowuwelepu.pdfIn PDF document text
    • http://gibisch.org/files/files/18456687900.pdfIn PDF document text
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/8aa159e2c7b6863a66c5878268a515dd/vawiz.pdfIn PDF document text
    • http://medigroupvn.com/upload/files/7096915302.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/60521501322.pdfIn PDF document text
    • http://geologicatoscana.eu/userfiles/files/37934927489.pdfIn PDF document text
    • http://fertilityupdates.com/userfiles/files/pokozoronewawivemiz.pdfIn PDF document text
    • http://tochuchoinghi.org/files/91073358592.pdfIn PDF document text
    • http://fruitsad.pl/images/file/bewitarimilekub.pdfIn PDF document text
    • http://adria-ex.com/images/blog/file/83468656241.pdfIn PDF document text
    • http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/zometefelajobefinasefaw.pdfIn PDF document text
    • http://home-plast.ru/foto/files/wilazilezer.pdfIn PDF document text
    • http://studioesflores.pl/obrazy/file/xebefem.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161409fbf91490---janekalevitamidon.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/112056195870.pdfIn PDF document text
    • http://banquat.com/userfiles/files/woxidexosod.pdfIn PDF document text
    • http://directartdeal.com/uploaded_files/userfiles/files/12071156416.pdfIn PDF document text
    • http://efuturesthai.com/uploads/files/genewito.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_off0000f2ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B01 20104 bytes
SHA-256: b96db0c3660c7ac60e3da7273c86975e154310b98a50e869fffbdff1e54558b9
font_02_sfnt_off00013f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F39 10476 bytes
SHA-256: a63c2d4adc5e9ae4efb0e83aebe037424bfe78fab1856e8a56d17ea315bd4437

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