Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ee1c6230ce4e3a…

MALICIOUS

PDF

80.3 KB Created: 2021-09-20 03:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 62f121ba283c2e1cf42319f9e2d87365 SHA-1: 10da4407ec9cc32201488165966106b04c9b58ec SHA-256: 96ee1c6230ce4e3a2ba11c3c6f01f309d322c10638a0a399ba4f4775ff8f1f38
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external URIs and is flagged by ClamAV as a phishing trojan. The ML classifier also strongly indicates maliciousness. The presence of multiple links, including those with 'utm_term' parameters, suggests a phishing or traffic-driving campaign aimed at directing users to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://huntic.ru/uplcv?utm_term=snapseed+pro+apk+download
    • http://frutapac.es/ckfinder/userfiles/files/ravowetuja.pdf
    • https://openkomm.yussfone-crm.com/userfiles/file/vaxanixikilejevozurejigo.pdf
    • http://henca.com/files/details/file/64818936198.pdf
    • https://stiff.pl/ckfinder/userfiles/files/powofinesefupezemonev.pdf
    • http://aodaibooking.com/FileData/ckfinder/files/20210910_48946DE87F85C5F4.pdf
    • http://globalsublimation.net/uploadfile/files/23228936021.pdf
    • http://grotech.in/userfiles/file/51447713117.pdf
    • http://firegallery.ru/img/upload/kavesilamemizupebod.pdf
    • https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/nuxugixafelufimuves.pdf
    • http://murzilka.biz/images/uploads/file/jopugufatumufesute.pdf
    • http://studioesflores.pl/obrazy/file/49328467840.pdf
    • http://xinyaoqiye.com/upload_fck/file/2021-9-5/20210905000951741864.pdf
    • http://infinity8talents.com/userfiles/file/tuwaroluvogisemebofubevif.pdf
    • http://cjpharmtech.com/upload/files/mojugojumozuwalapaxexig.pdf
    • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_05_06_38_40_2802.pdf
    • https://adesso-moosburg.de/images/file/bopinesezepeb.pdf
    • http://dunakeszi.varosom.hu/userfiles/files/vekumisujapopojup.pdf
    • http://elektrostroy.kz/ckfinder/userfiles/files/vokoloxupozom.pdf
    • https://alakharia.com/public_html/userfiles/file/79271271035.pdf
    • http://thaifilmind.com/upload/files/95095351518.pdf
    • http://nieruchomosci-swidnica.pl/userfiles/file/19978165081.pdf
    • http://www.plain-pied.com/editeur/ckfinder/userfiles/files/gevuzotixatosinijusa.pdf
    • http://xn--2-140-swe8h.xn--p1ai/files/wikojaxemadasafuvisapo.pdf
    • http://picart-personal.pl/fckupload/upload/file/68629931312.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_off0000d486.bin
4e904fa28909d59fd05cb5692432e858e32a8653109a41cdaf2c5fd0561a8cda		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD486 10448 bytes
font_01_sfnt_off0000ec60.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC60 16792 bytes
font_02_sfnt_off00010472.bin
a843b4a1e45a088f9da4df99a341ce7c510b4095176428f1fa8cf255736eb846		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10472 18136 bytes

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