Malicious PDF — malware analysis report

Static analysis result for SHA-256 d02e1083f2aac268…

MALICIOUS

PDF

84.8 KB Created: 2021-09-13 00:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: de5d4da07674b9bb1b552ec756bfb4d6 SHA-1: d2c9859e908506727158d7c9b5b3a8187b3d429f SHA-256: d02e1083f2aac2680596f3f77a896073b029964d8a6dd34ad087eecc17a8db23
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document exhibits characteristics of an advance-fee scam, using lures related to lotteries, prizes, or parcel deliveries to entice users. It contains numerous links to external PDF files hosted on various domains, suggesting a link farm designed to distribute malicious content or host phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 8

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/987f04fa8e7812d93ab47460b36fd2e5/vodozabip.pdf
    • http://ldkxzzs.com/images/userfiles/file/56269015253.pdf
    • https://dauglita.lt/components/com_mijoshop/opencart/image/data/files/28762077987.pdf
    • http://ramenzoni.eu/userfiles/files/fabuzumatugamubopi.pdf
    • http://kapelski.pl/userfiles/file/lovexatajotoved.pdf
    • http://poetische-malerei.de/web/editor/files/kopenulamisawedobupazivob.pdf
    • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/pagako.pdf
    • http://babywagen24.de/userfiles/file/sojezozuzugabodilexe.pdf
    • http://shannonlakeestates.org/fck_images/file/fenug.pdf
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/widoloregokirezisebebesil.pdf
    • http://gardatrans.com/content/Files/wigagoxa.pdf
    • http://billedbutikken.dk/articlefiles/file/zoxaxowuladapute.pdf
    • http://bodemveenweiden.nl/bodem-veenweiden-img/32920839641.pdf
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7505194c2---52986095040.pdf
    • http://gorod-r.com/userfiles/file/vuguritetexurolelativ.pdf
    • http://cnokorea.com/userfiles/file/jojevememuvij.pdf
    • http://www.coverseg.com/uploads/ckfinder/files/xoxif.pdf
    • http://baocaosuhoatoc.com/luutru/files/vatalarujonudajefa.pdf
    • http://startmatbaa.com/userfiles/file/82740805132.pdf
    • http://klhl.com/userfiles/file/vozoti.pdf
    • http://gpszone.hu/upload/userfiles/file/rufoki.pdf
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7072ad82c---tugulijerogux.pdf
    • http://archinfo.ru/uploads/file/63189321899.pdf
    • http://onthebroadway.com/CPD/adminpanel/upload/file/76239464281.pdf
    • https://www.tahitotfalu.hu/ckfinder/userfiles/files/jukamuzipofemodofafavexed.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=tom+and+jerry+cheese+apk
    • 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_off0000e59b.bin
e1c856b13d202d4f2dc97c13d3a93f7e8022fd913b1c0a8345238b19c41f9bd9
pdf-font-stream PDF embedded font (sfnt) at offset 0xE59B 18420 bytes
font_01_sfnt_off0001150a.bin
dacd68a69c88696fc162e9b96b95b4fb09a715088294b01fee0bd15169fe22dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1150A 10840 bytes
font_02_sfnt_off00012de9.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE9 16792 bytes