Malicious PDF — malware analysis report

Static analysis result for SHA-256 9499c9bcb0ddd600…

MALICIOUS

PDF

84.5 KB Created: 2021-06-03 14:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d62f664ad8a18998fbc9486acf0c7f47 SHA-1: be68101c1f542a735155bca538667923600396eb SHA-256: 9499c9bcb0ddd60063f80db5ea172e2aa7ced7ae69345916e3abbeb0bde234c6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a "Gta 5 shark card code generator no survey xbox one", suggesting a phishing or scam attempt. It embeds numerous URLs pointing to compromised WordPress sites, likely serving as a link farm to distribute malicious content. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a402c8b41c3---naguwokevirefij.pdf
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083128ea949d---80592312520.pdf
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0bd1c90e0---52660643821.pdf
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b85325e3507---vajoxemanelu.pdf
    • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/fe6d1fa48bdf89e0fbf22181a0c487ab/79632188121.pdf
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075fd34814ca---jerusefajejowopujof.pdf
    • http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/62233101473.pdf
    • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/8025f3d2e7e22e71439e559d33d54c31/wowomedomutepokomuji.pdf
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/1d2c4d06f706997bc9a76d50269be7d3/64034484520.pdf
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607c740547ca3---45749637282.pdf
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1608687cb65960---kepebakovegu.pdf
    • https://alianzatours.com/imagenes/file/vosenufeponibolifomuj.pdf
    • https://catequesisnavarra.org/guiarte_userfiles/files/kupekobegusofuk.pdf
    • http://dansecyr.ca/pdf/file/64349640675.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/85a36e5ecdc0bd08e140c61e1eb2c40b/gatagakifikuboz.pdf
    • https://advance-pack.com/editor_upload/file/45892919684.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609277bcb8875---83189773233.pdf
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a35def7fce3---perupefafexosobates.pdf
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/fa85638c65ec36d940407d2b08c093ed/kebopixeki.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=gta+5+shark+card+code+generator+no+survey+xbox+one
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010375.bin
cd8d50ca83607232d6a4f26169b3d18489b5531f0014ff59971d75cc0bd7319e
pdf-font-stream PDF embedded font (sfnt) at offset 0x10375 5592 bytes
font_01_sfnt_off00011678.bin
0494d2fc599ee62d791e4385d68c253ecc3af973abb3ad729f703c1e47134c16
pdf-font-stream PDF embedded font (sfnt) at offset 0x11678 11688 bytes
font_02_sfnt_off00013dc2.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x13DC2 4324 bytes