Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e158fc1c09481af…

MALICIOUS

PDF

89.5 KB Created: 2021-07-07 00:03:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: ab18494d9fb7acc937b29d33dd0b6f43 SHA-1: 8e78ab96314c99c6a3bdc90cbcf8303bb0164697 SHA-256: 4e158fc1c09481affab32218d07842175f1581eec2a5b654e96cec4aaa97ed9e
196 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of an advance-fee scam, employing lures related to lotteries, prizes, or parcel deliveries to entice users to click on embedded malicious links. The ML classifier and ClamAV detection strongly indicate malicious intent. The numerous URLs hosted on compromised CMS platforms and disposable domains further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=most+trusted+professions PDF link annotation
    • https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/eb384247e4becdc88bf195cdf1772216/4257152821.pdfIn PDF document text
    • https://novahealthclinic.ca/userfiles/file/jisotikorajimik.pdfIn PDF document text
    • https://papiratisk.cz/soubory/17724705809.pdfIn PDF document text
    • http://mistralizmiryonetim.com/uploads/file/xotoxuge.pdfIn PDF document text
    • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/b1429et7fglklhdg0jev1jia3i/52965291295.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d34b36d59c---jilujo.pdfIn PDF document text
    • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608455efdd710---79943812898.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b53dd80fb6e---suvipomubuvifijapafu.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/rhigki2dnvi7sm91pl3siu0nct/xelojeg.pdfIn PDF document text
    • http://vitalbafitnessclub.eu/userfiles/files/64286069737.pdfIn PDF document text
    • http://veterani-pushkino.ru/userfiles/files/sofobunoxutusenu.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/78600957493.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16077c8375920d---45265861583.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/a1c60af04514fee9e9e70ba7c7e30274/lilokalujamipibimenuxi.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa8fe1aff3---xezemavovirekarawu.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1760bd8b0---49573037901.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160961c31d8999---vaginavexo.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/690607b66436cbc1a6de1f8a9cc11c4b/wimuzanopibixemenuvig.pdfIn PDF document text
    • http://phuquytravel.com/nguyenvanlinh/files/nijexowasudifunageg.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160ba8aeeccd48---38447055174.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/ipfceeknnmhi3iqtagi0d8l0u4/xirilasizavalefabax.pdfIn PDF document text
    • http://zulassung4you.de/bilder/file/xitaketidado.pdfIn PDF document text
    • http://wasserburg.pl/userfiles/file/71184409.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/dnnpiiaf6194qp4g2339eqpd40/fazopimulufu.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/bababikenidowavuxokifare.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf032b8b830---tedezadapalidonerovo.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_off0000fafd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFD 10376 bytes
SHA-256: 958e68f703367cf1e7684a8188387b726734cc02bf5bc841d2012091b68cb45a
font_01_sfnt_off00011292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11292 17616 bytes
SHA-256: 0df314ff083035ece0669edba35c546b252d696bd6767ecd7edadc3ae0a528b0
font_02_sfnt_off00014090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14090 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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