Malicious PDF — malware analysis report

Static analysis result for SHA-256 cca767fadafd45cf…

MALICIOUS

PDF

78.2 KB Created: 2020-12-03 16:11:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 41bd1ec7ef3305ecaf6ee41f06152ea4 SHA-1: 9b56d93632d0b8c0515720eb815db298afecce96 SHA-256: cca767fadafd45cf98b815ebf3ea232f98f1c94f1189fa5a51bf9977b5286a99
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafffi.ru/aws?utm_term=android+chat+application+with+php+and+mysql PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374203/normal_5fa025fa78458.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460465/normal_5fbe07ab604c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461219/normal_5fba3c3060aa5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6b6c61e25426e13130a6/1606380398100/lg_55ls4500_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c563129b-71f2-4747-95d2-26c5cef1835d/the_art_of_covert_hypnosis_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bace95f-6f77-4d90-bc46-329c62c2c805/gagogibavibedegibejubize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d6c4bad-cf87-4e07-b833-a9a2b9b1a89a/physical_appearance_nonverbal_communication.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a70bbcf5-e4c1-4716-b1e1-b791a4159da0/felekevivetuxibobut.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e46f24b06a7eb3ff1788/t/5fc15e76f3de5e49b597c759/1606508154743/fawulefoporeposafazemilul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/032743e6-61b1-45a9-9254-41d73423b915/shaman_king_legacy_of_the_spirits_so.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3084be1b-bcef-4d56-ac62-71318c312eba/50700566169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/841b0b0e-eb3e-41c1-8019-37b7b1cc7ab9/74129414550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec5c122f-853f-4163-a680-a575de6a37df/wogajija.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/699bb47c-99b1-47ef-a8ae-ab3645b8d05d/native_american_eagle.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD968 3980 bytes
SHA-256: c3f5c3343c4e4723abdd3ff8b0252bb3b7bcb2cde598f60117796464a5d81464
font_01_sfnt_off0000e78b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78B 5292 bytes
SHA-256: f7ccf6832c26319df581da9335e42f83d2d93089e7baf465dfa408cd02d6caa9
font_02_sfnt_off0000f95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF95C 10532 bytes
SHA-256: 3e91225e8600dad9b6a9531699b24b8ddfb95d2fd0ffa8f40778c4bdcbb6f7bd
font_03_sfnt_off00011d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D47 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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