Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a26eac99516452…

MALICIOUS

PDF

95.1 KB Created: 2021-06-29 23:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d0e9177238d184657d3dbeeb6075c327 SHA-1: eb89a268b675a073401da3ac8818b612c9f6fde1 SHA-256: 30a26eac99516452fefd4bde13cfa5d256af44fe85e7ccc569a0c25cf9f24126
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many embedded URLs pointing to compromised WordPress upload directories and other domains, suggesting a phishing or malware distribution scheme. The PDF structure and numerous links indicate an attempt to lure users to external, potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9929

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 http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ko8gtbao0f0vclo3tcaosvckv7/kuxekudulitepepuj.pdf
    • http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/wasavonidof.pdf
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/b0493f9acfa8d2d932a877563cb23518/fizolonivulalatezujevu.pdf
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/05de5ac4a074bbf4ba63643c016b76cb/30152438252.pdf
    • http://md-servicios.com/userfiles/file/12290042905.pdf
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608efeb927f5c---72366318670.pdf
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/nvd6p83o5f5r977lkrhutjgo1l/72218417726.pdf
    • https://dm288.com/slicice/file/78629080871.pdf
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd14a320274---5149687883.pdf
    • http://mywayrtk.info/userfiles/file/dijivaxegada.pdf
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f49398608---99584396704.pdf
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160719e3b3cecd---gabeda.pdf
    • https://oykufestivali.com/ckfinder/userfiles/files/85196430595.pdf
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba68312ec6a---povemiboxepe.pdf
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/0011bc8692449297666ab33a90815274/71428534304.pdf
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e0dcbdb97---100960347.pdf
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/5lgded2o0n61igg1e9l6ffe2m3/47267187153.pdf
    • http://sea-cruise.ru/ckfinder/userfiles/files/jixojalonumifate.pdf
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/nn5v03gc1b1e4n6q5h0apkonv2/506947885.pdf
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16096c636ec3f8---wetobekunawasazabaviw.pdf
    • http://sahamit.net/userfiles/file/20633885817.pdf
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/e14854eaa9a936c40db6c08d09122417/zesivegotusukifa.pdf
    • http://daivupaint.com/img-chamthi/files/92600018799.pdf
    • https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/99dc1897a096a5b429bbc84b6ea5e3c8/wafuwafumeluwo.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=cervix+during+period
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/7e01c28b97afa2109f6042e1a178718b/danubijefe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011126.bin
0a9dc51d62f8cb38a1c107028737143c986bad3b90cf163b7168ba2176ad6844		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11126 17936 bytes
font_01_sfnt_off00013fdb.bin
f0580e09204079f387150855a6ec2a5b8fb860fe33e646bd6f63fa6c3986811e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13FDB 10392 bytes
font_02_sfnt_off0001573e.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1573E 16792 bytes

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