Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed1fdaee8bdeb2f…

MALICIOUS

PDF

90.4 KB Created: 2021-06-28 20:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7e765b15882acd0293d623f5e3379c80 SHA-1: f15e72f56c1a183830d899df62a6b26ae3234756 SHA-256: 0ed1fdaee8bdeb2f5ec42a4e797219c9cb8f963190a21986d0fdbf5c7794e2b2
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites. These sites likely host further malicious content or phishing pages, serving as a distribution point for malware or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/4a4b4eb51b054758225296af01eb82e3/jimofibinitefixisi.pdf
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160844b6d4d78b---25731605541.pdf
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097df2edfc85---92947577021.pdf
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/tp3us6c5uo0v4ag0qtmook12df/4465505388.pdf
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/0ab4b78843cc2baf4c04a05df24b02c1/82727656426.pdf
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a54090bc52c---kisagusefagupigivazina.pdf
    • http://ip-golubev.ru/ckfinder/userfiles/files/vumezuw.pdf
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/40191808128.pdf
    • http://soles2walk.cz/data/file/bonegutejizetamatusoguwe.pdf
    • https://towa-aaa.jp/userfiles/file/43871945627.pdf
    • https://ktmcollege.org/public_html/userfiles/file/6201298416.pdf
    • http://nexxosrealty.com/userfiles/files/4982207584.pdf
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/39fb94c0ec5d646812e4f418cebfeb6d/51340629853.pdf
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/b19c963069b38370dc11965a22af80c7/66430401672.pdf
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/cba0a15e964f4311dc6f43726635f42e/tulorixavarewodemokuba.pdf
    • http://niszczeniewaw.pl/userfiles/file/2715527065.pdf
    • http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/xipadoxan.pdf
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091f156a0b3b---27956914378.pdf
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4d52b7f6c---56233750989.pdf
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c145f2cecb---linoxovonasetebekuvutemi.pdf
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/16111c322f4d04b3b77f26ebfbed839e/xivowod.pdf
    • https://stillwaiting.org/userfiles/file/43298937656.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=mhz+to+wavenumber
    • 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_off0000f856.bin
4bcabdfc8aceef2ee9fb78c6bf63606d7c14e90205bbac01c27e6770eb726dc9
pdf-font-stream PDF embedded font (sfnt) at offset 0xF856 19620 bytes
font_01_sfnt_off00012cb5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB5 16792 bytes
font_02_sfnt_off000144cc.bin
7415b8a292b4261782f07d4435994241a175b01f533f0081093de5e68786781e
pdf-font-stream PDF embedded font (sfnt) at offset 0x144CC 10512 bytes