Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e17f256a25a1eb…

MALICIOUS

PDF

80.3 KB Created: 2021-03-18 16:44:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 273d3930ed21b7bd6c9722613d18f81f SHA-1: 79addfc05de072b557ff0fc958f1fa53f4042bc4 SHA-256: c0e17f256a25a1ebc3eaf7ec687be8f9d115315a93b6a4283bc2e209d308fa41
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a URL designed to appear as a product manual, likely a lure for phishing. ClamAV and ML classifiers strongly indicate maliciousness, consistent with a phishing or trojan delivery attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://xajibur.ru/wix?keyword=granite+outdoors+baitcast+reel+manual
    • http://nevinidonet.mywebcommunity.org/margaritaville_machine_key_west.pdf
    • https://static.s123-cdn-static.com/uploads/4373516/normal_5fdff7c204cdd.pdf
    • https://cdn-cms.f-static.net/uploads/4382430/normal_602d69c5b2b66.pdf
    • https://static.s123-cdn-static.com/uploads/4445737/normal_600363ed60ade.pdf
    • https://cdn-cms.f-static.net/uploads/4410013/normal_600cf1563ff3e.pdf
    • https://nubokulusavabum.weebly.com/uploads/1/3/4/7/134702007/kuzadeledi.pdf
    • https://static.s123-cdn-static.com/uploads/4370540/normal_600026b68ba5d.pdf
    • http://lofeboxirav.iblogger.org/cant_stop_wont_stop_powder_foundation.pdf
    • https://cdn-cms.f-static.net/uploads/4426828/normal_604e3ce491e55.pdf
    • http://suraneb.scienceontheweb.net/how_to_take_better_pictures_on_iphone_xs_max.pdf
    • http://sigixexizo.sportsontheweb.net/action_words_flash_cards.pdf
    • http://gonunimob.iblogger.org/50506431365.pdf
    • https://tasitonedilegu.weebly.com/uploads/1/3/5/3/135301248/wisepobagowoxoso.pdf
    • https://siwizapetodid.weebly.com/uploads/1/3/4/0/134041585/kigawedorusaxir.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vivemowirarok.rf.gd/making_tax_digital_xero_guide.pdf
    • http://navezep.epizy.com/fajigaru.pdf
    • http://livikunaxexo.rf.gd/86367290062.pdf
    • https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_c627fbe029ec4ff08d59cbe29519eea9.pdf?index=true
    • https://d992f69e-bc5b-430a-92d7-abfd66d0380b.filesusr.com/ugd/6f7357_f71aaf4bb4ae4920a0e3b35d09001b68.pdf?index=true
    • http://vekamodadon.onlinewebshop.net/85491023765.pdf
    • https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_029ed8f2edec4b20bd459d7eee03dc54.pdf?index=true
    • http://zogoxuf.atwebpages.com/kirajegozopi.pdf
    • https://91c7bc9f-df77-4dbd-ae51-8bcf521f3e61.filesusr.com/ugd/1df9ea_35721f3bd7c247b09982cee09c662f43.pdf?index=true
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb01.bin
e7b78c521bf1b9b795d04804175fc6bb8b6a7427926b5b41059c06110a88b8bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB01 5256 bytes
font_01_sfnt_off00010ccb.bin
4d169babbd6f2437ad4b99a57a482d5bea97e07b0c56a1398145ec4b696a067e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCB 11488 bytes

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