Malicious PDF — malware analysis report

Static analysis result for SHA-256 07005e69077cfce1…

MALICIOUS

PDF

84.7 KB Created: 2021-06-26 23:37:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 908eb706cfd2f0fd812dbae7aa5c559d SHA-1: a6374fd97a718b16d75c97430e804b160b9bafc1 SHA-256: 07005e69077cfce12f735e6e7791364952f4e408bd88078c721220d16a58eb79
176 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded links, many pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of a raw IP address in one of the URIs further indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160983db578a18---jonowivinajewonepej.pdf
    • http://trimblehighalumni.com/clients/84492/File/35316239134.pdf
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091a521beeea---96644165784.pdf
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/neaplpip4t9jt69pkijgguut32/35166747594.pdf
    • http://svsteinfurth.de/radsportfiles/file/sinomas.pdf
    • http://kudusde.org/resimler/files/zibajofawow.pdf
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a742074119e---31428676920.pdf
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a1fdb8909---16795901158.pdf
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/60ab1c85733a87db83b7300d2976d50c/21055130562.pdf
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16097607383640---69856898037.pdf
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6fd023188---71921594360.pdf
    • http://brezov-gaj.si/uporabnik/file/92985086503.pdf
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160864f497863d---69372716887.pdf
    • http://asesorgubernamental.com/images/file/ximubojawudekajuvewonala.pdf
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16097b5b131ee6---rijozozinijiluvisudowapun.pdf
    • http://firmykominkowe.pl/Obrazki/edytor/file/69775191319.pdf
    • http://cuadepthanglong.com/images/ckeditor/files/57097211158.pdf
    • http://ibshop.gr/uploads/_uploads/files/59395321375.pdf
    • http://pnmanagementsolutions.in/uploads/mowafarilipibadisa.pdf
    • https://habibitours.org/ckfinder/userfiles/files/94646196392.pdf
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160929c7413000---68890542945.pdf
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/467d4a3a560687094172ca20470b0b68/bexafatejukeda.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=mis+root+meaning
    • 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_off0000e6a9.bin
b04ccdc1a96157fbee72c58cb90d6c9fcc21b4d04e6df02d46a4c88ef59e33e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A9 10396 bytes
font_01_sfnt_off0000fe2f.bin
089c8ce2966c67278891d16ad8560bafca594653fd7c2d52aa3b52fb4c2cacef
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2F 17596 bytes
font_02_sfnt_off00012c3b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x12C3B 16792 bytes