Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2db62d2f4b5123…

MALICIOUS

PDF

78.9 KB Created: 2021-03-20 18:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a441924f6fd0ec90a7fbf3c048187f7e SHA-1: 96d15296c111e7e54b1ac22018010707964c75b8 SHA-256: 1e2db62d2f4b5123daff2211be0ffa622abdfe9e9401e4e7fcc4c690609db1ea
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. It contains numerous embedded URLs, with one specifically pointing to 'zajinet.ru/wix?keyword=existence+abbi+glines+pdf', suggesting a lure to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing attempt or a downloader.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/wix?keyword=existence+abbi+glines+pdf
    • https://cdn-cms.f-static.net/uploads/4413373/normal_6028e753dba23.pdf
    • http://merotudonor.mypressonline.com/isopycnic_centrifugation.pdf
    • http://dajexori.mypressonline.com/core_java_interview_questions_for_10_years_experience.pdf
    • http://nopuvobetag.mygamesonline.org/kufeninesanadiwoxom.pdf
    • http://palawawez.mypressonline.com/newumeputebajex.pdf
    • https://cdn.sqhk.co/xubipoxeguza/iigVicE/basketball_world_cup_2014_serbia_team.pdf
    • https://cdn.sqhk.co/melipetoluf/jggfibp/electrician_apprentice_jobs_no_experience_near_me.pdf
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/rorakikipotozonipir.pdf
    • https://webakutukulufu.weebly.com/uploads/1/3/2/6/132683024/mitali_wokiveko_pejul.pdf
    • https://cdn-cms.f-static.net/uploads/4416326/normal_60356e916d357.pdf
    • https://gebomatera.weebly.com/uploads/1/3/5/3/135396668/faxulevulomumonife.pdf
    • http://tokepubex.getenjoyment.net/20306407152.pdf
    • https://static.s123-cdn-static.com/uploads/4476416/normal_5fed040e1c914.pdf
    • https://static.s123-cdn-static.com/uploads/4495262/normal_6003530595438.pdf
    • https://daxigowopijadek.weebly.com/uploads/1/3/0/8/130814785/4a300fc742.pdf
    • https://static.s123-cdn-static.com/uploads/4454430/normal_5fefd9abdc7c3.pdf
    • https://cdn.sqhk.co/woxipepevati/7o3jdie/xisisob.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nokejufesuw.atwebpages.com/lakshmi_sahasranama_stotram_lyrics_in_telugu.pdf
    • http://wovibojo.onlinewebshop.net/vamoniturofixatopule.pdf
    • http://jafixomedimun.onlinewebshop.net/estimation_and_costing_nptel.pdf
    • http://xafibejijopo.atwebpages.com/womiwokipav.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_off0000f378.bin
63be466f2514b4bd0608ad3751e05a81e2c557379848371c4a1c64a78c058725
pdf-font-stream PDF embedded font (sfnt) at offset 0xF378 5392 bytes
font_01_sfnt_off000105e9.bin
219bd8addc460d399b06ba7dc58c313bf0e0bce65e751daceb856965acd5ef53
pdf-font-stream PDF embedded font (sfnt) at offset 0x105E9 12084 bytes