Malicious PDF — malware analysis report

Static analysis result for SHA-256 162b36078c166ece…

MALICIOUS

PDF

251.4 KB Created: 2021-06-29 11:38:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0eeb5f3c28961a2302f5b608cff48006 SHA-1: c857143ba1da8ce010708c05e155be6d408e61ef SHA-256: 162b36078c166eced8dc7bfdc0c5c0d1d4ac6fc8e5d6acfeaba2aa7a7b4810d2
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document exhibits characteristics of an advance-fee scam, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. It contains links to various WordPress upload directories, suggesting it may be part of a phishing campaign to trick users into downloading malicious content or providing sensitive information. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9845

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
  • 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.
  • 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://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/d17c138e4a659e9f82bcd58fd38fff2b/jugiwuzirizosoguworidux.pdf
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b65061f6cb---95231195758.pdf
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/f6a603a768de3ff79569c145f42aaa59/xapolola.pdf
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160988c8530dc9---teremo.pdf
    • https://activepymes.com/pub/file/15141251716.pdf
    • http://aimecostruzioni.it/userfiles/files/peruwut.pdf
    • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16094b3449cd85---novinusejokufipobumikek.pdf
    • http://anatolianlgs.com/userfiles/file/94766891066.pdf
    • http://papaicountrylodge-longstay.com/user_img/files/fadubosol.pdf
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6e92a543f---pavuvelubufetitogofu.pdf
    • http://cnhhgj.com/upfiles/userfiles/file/3100038662.pdf
    • http://files.ibiza-ferien.de/file/35336965487.pdf
    • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/enn8iv6ec7d63i84l5mkb890j8/vuredax.pdf
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/a5719e88ecff13a23cf41d7e297ca64a/nafidavijawa.pdf
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/d77170787fefe8392237d4ec21c6daf1/bejogamubijunoxepabida.pdf
    • http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/cafec38eed1a7fa753a9c84a1754b467/10593437062.pdf
    • http://tourbusan.net/FileData/ckfinder/files/20210629_5DF466CAD6BDFD0A.pdf
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a46b47789cf---zuzizu.pdf
    • https://semineebrasov.ro/printuri-fi/files/julufibugibes.pdf
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5642f70f46---94181713504.pdf
    • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/e41ff95e1bb47f4cf217d1f400930b23/pijutiwuwila.pdf
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/s168082b6vcnlmbiiqtgv3ka02/67945595686.pdf
    • http://thoitrangvabaoho.com/Images_upload/files/1291697964.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=inside+reporting+3rd+edition+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_off00037bda.bin
78f9dc57f2e41cb9c313a10340f04d680c7c3d3ef05aa899de480ff9e41b52c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x37BDA 10588 bytes
font_01_sfnt_off000393e8.bin
e492b137bc59486d5fa8ea08d85831ea4fba8f23c0474f40a16c5a909003c95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x393E8 19956 bytes
font_02_sfnt_off0003c784.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x3C784 16792 bytes