Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce65d39ea7e0ad86…

MALICIOUS

PDF

76.2 KB Created: 2021-03-24 16:56:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 80b5a93832818501fbea730612c4e153 SHA-1: 272c12f18577ee8d696be95f1ffd4a3df3bcd988 SHA-256: ce65d39ea7e0ad86b33437a4bd6cb516f5fb100324cb7dae92ac2a8b670af2e6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'xezojetit.ru', which is suspicious and likely serves as a lure for phishing or malware distribution. The document body, though partially corrupted, suggests a theme related to real estate applications, a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=texas+realtors+residential+lease+application+pdf PDF link annotation
    • https://cdn.sqhk.co/jetobatu/hiiekif/gojekifedavad.pdfIn PDF document text
    • http://100p-f.ru/7524044498859rz0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453342/normal_5ff2db751aa66.pdfIn PDF document text
    • https://cdn.sqhk.co/xenotami/coAkji8/average_calculator_python.pdfIn PDF document text
    • http://fitokapss.xyz/la_crosse_technology_wifi_projection_alarm_clock_manualmlnss.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428331/normal_601002a10e8df.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/fggcNie/98404176027.pdfIn PDF document text
    • https://cdn.sqhk.co/sarafogu/3U7ib7X/transformers_4_bumblebee_meets_stinger.pdfIn PDF document text
    • http://boost-store.net/honeywell_wireless_mp3_doorbell_chime_and_buttonhkjdq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae63bdc9-eb19-4203-8275-a9aeb859e0bd/how_to_say_chrysanthemum_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac66208e-77da-4253-bfb1-d2f16d607cac/telixuretirufemolano.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/the_big_short_real_characters_net_worth.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/best_answers_for_long_term_career_goals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5eef951-830d-40c5-a88f-e592796e37e3/does_diethyl_ether_have_hydrogen_bonding.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/1584512057.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/spoken_english_topics_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/30840601325.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/very_long_moral_stories_in_telugu_to_write.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fdb324d-e469-4e97-abfd-ec9d142a8fe2/how_much_does_international_mail_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/torimaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7880bcf-d49a-4318-996d-d091c6d64219/what_is_the_capacity_of_the_kenmore_elite_he3_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/android_version_update_samsung.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA82 5164 bytes
SHA-256: a0ac5b675c972d5c03317cbc16cfc0693fc04f69c99fdbf61f98f015de826265
font_01_sfnt_off0000fc24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC24 11368 bytes
SHA-256: 5da972e28de1b011094b75651752f4f3da4248213cc83749302ebee9fec0ff41

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