Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e6e66d53cc3a27…

MALICIOUS

PDF

72.3 KB Created: 2021-03-23 08:21:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2aa1ce163fac6468f40aacd2d1a5d3b1 SHA-1: d526e9f3fc5ee603a78ca22e7b46b34801ddecf4 SHA-256: 49e6e66d53cc3a275d95bfe557720c91c023dcb0225ba481b2506c1290aa9127
136 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass security filters. The embedded URL 'https://ponafet.ru/award?keyword=ecg+velez+pdf+gratis' is likely part of this lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/award?keyword=ecg+velez+pdf+gratis
    • https://gepadera.weebly.com/uploads/1/3/0/7/130740344/556397.pdf
    • https://fumuteserem.weebly.com/uploads/1/3/5/3/135333711/xivozezumemadik_ragovukufuzudod_wapexa_zigatedumugo.pdf
    • https://static.s123-cdn-static.com/uploads/4368976/normal_5fc8858c1d57c.pdf
    • http://rusherx.studio/razokumesiahcxb.pdf
    • https://static.s123-cdn-static.com/uploads/4414695/normal_5ff42d1d6c28c.pdf
    • https://cdn-cms.f-static.net/uploads/4411231/normal_5fe6f1a3497d9.pdf
    • http://prizyivnik.ru/fizuzidozapawasanatawuhiejs.pdf
    • https://guxuxexor.weebly.com/uploads/1/3/0/7/130775085/1835150.pdf
    • https://nogekapufininut.weebly.com/uploads/1/3/3/9/133997605/munizosozugoxari.pdf
    • https://cdn-cms.f-static.net/uploads/4485926/normal_600d4a6ac178e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lotibabakuj/network_support_engineer_interview_questions.pdf
    • https://uploads.strikinglycdn.com/files/3ff3fa59-431c-4007-8958-1df92d3aa935/what_is_coh2o6_2.pdf
    • http://nototen.epizy.com/44162192204.pdf
    • https://uploads.strikinglycdn.com/files/77fff53b-c252-4d4e-b47e-c6f5ab566110/rolelojowotefawemewupaf.pdf
    • https://s3.amazonaws.com/mogedozara/marowapatuwafemezegab.pdf
    • http://fumitosavewi.rf.gd/wuwuzate.pdf
    • https://uploads.strikinglycdn.com/files/166a378e-d274-4076-ace2-26cb50419f38/15320819891.pdf
    • https://uploads.strikinglycdn.com/files/e00f628d-df22-4d2b-b6bf-0690b55696ff/93821319315.pdf
    • https://s3.amazonaws.com/gurupixabogivaz/2011_chevrolet_equinox_reviews_consumer_reports.pdf
    • https://uploads.strikinglycdn.com/files/1740de3b-f2ed-4dcc-8420-91d969c37718/50322823499.pdf
    • 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_off0000d818.bin
22a0c7eacb704ea54bf930d93e97b4164b83b1f7783a09b569cde581e00da720		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD818 5388 bytes
font_01_sfnt_off0000ea97.bin
e9fcbb33e32e2fb505bf898bbce5692b1042fc3a9077ce186d8897966b1c5df0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA97 12360 bytes

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