Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6212f14def7d34…

MALICIOUS

PDF

85.6 KB Created: 2021-02-28 08:16:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4aaa1350810a749ca69259f149958993 SHA-1: 0dd2f7bcefc99516a6db0be8ce36bf5c9be2bb9d SHA-256: af6212f14def7d34b1ac013365c93b67e621596acb637456f07197ca37ad9d55
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords related to the embedded URI, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/wix?keyword=nasb+al+raya+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460231/normal_601ddcb4c1ea8.pdfIn PDF document text
    • http://prodson.fun/how_to_charge_plantronics_voyager_legend_bluetooth_headset23xwt.pdfIn PDF document text
    • http://13millions.store/78040134372uyza3.pdfIn PDF document text
    • http://didazema.mypressonline.com/73606734360.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/joserawoxepowivufosa.pdfIn PDF document text
    • http://pokemonrivals.online/kolasenijapimepipofawixczi9.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/epson_wf_3540_replace_ink_cartridge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_60108f4ccbd0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_5fd0f9193f724.pdfIn PDF document text
    • http://bitsracing.net/16559393589zxh94.pdfIn PDF document text
    • http://znakomstva18x.site/manual_telefono_alcatel_lucent_8038lgd9m.pdfIn PDF document text
    • http://fishland.store/24204594656lqwux.pdfIn PDF document text
    • http://keep-travel.com/dometic_fan-tastic_vent_model_7350q8by8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388041/normal_60137e69d657e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dixaleko/ridgid_planer_r4331_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/62320140125.pdfIn PDF document text
    • http://zijodere.rf.gd/81145122518.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/what_is_the_current_nec_code.pdfIn PDF document text
    • http://dovagoxaluzof.rf.gd/civilization_6_guide_stratgique.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/36079722443.pdfIn PDF document text
    • http://jedigox.epizy.com/moxuxuxaturalape.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9A 5244 bytes
SHA-256: d9ca01a068d26da424551e5eb1ac5cf86a6c787b8acd287eb390724659da1135
font_01_sfnt_off0000ff85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF85 11028 bytes
SHA-256: c124958a131f50293c7e78465f582444d540b792b8561a5030df0ec2abdba947
font_02_sfnt_off00012446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12446 21832 bytes
SHA-256: bf033a0e1ee99b1c8c13991776eef3d2b907b15c6d5cec9329cb49b3bc4a3524

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