Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd8c8db4aa7c1d1c…

MALICIOUS

PDF

227.1 KB Created: 2021-03-18 14:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 105a469e46a61db5e96a5ed3fbca07ab SHA-1: eccb352508d7aa65638314a7cb5b03490341ce51 SHA-256: dd8c8db4aa7c1d1c5f29c2a052aa9bef18222e6ec38ce5a43c5c06fcde564d9d
96 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URI pointing to 'https://dugedepap.ru/award?keyword=3d+hologram+projection+technology+pdf', suggesting a phishing or social engineering lure. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a likely attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9802

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://dugedepap.ru/award?keyword=3d+hologram+projection+technology+pdf PDF link annotation
    • http://iranianvc.com/89369942276x30xh.pdfIn PDF document text
    • http://tehnikator.ru/jawefuevcjm.pdfIn PDF document text
    • http://axecheat8.xyz/11448105795cxezn.pdfIn PDF document text
    • http://rollernefritmassage.xyz/pusuwavinolutonuyiuw.pdfIn PDF document text
    • http://hallhq.xyz/31007361888qlvtz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://19527f6f-7821-4b33-8e58-d909ab9a203f.filesusr.com/ugd/b18fc6_9b03f4020bf94ef6b07716ec86de704e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b31a74f1-3c76-4aa0-90a3-c7878feca093/alesis_3630_compressor_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/how_many_monster_high_movies_are_on_netflix.pdfIn PDF document text
    • https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_181af6e21bfc47ffada97d226fed6c31.pdf?index=trueIn PDF document text
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_ef0072008cfc45369326332dec140517.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/36322e3e-e198-4d75-bc7f-412bcc667b9c/tubotasag.pdfIn PDF document text
    • https://e86c6366-0652-46cb-9e1f-5633a133dba9.filesusr.com/ugd/510a18_553aeaed5b19434f925cb29a01fa632c.pdf?index=trueIn PDF document text
    • https://34886cf3-15ed-44db-93e8-8979dc7c4cd7.filesusr.com/ugd/ea2c45_be34acc491a642418284581b9039512a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5c74cd1-16ae-48e1-834f-436f178dbdcb/diary_of_a_wimpy_kid_double_down_book_summary.pdfIn PDF document text
    • https://711920be-b761-4f0e-a604-762b26663b16.filesusr.com/ugd/ffcbea_e3f71cfbc5f94211a0489038c361c01f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/95824651272.pdfIn PDF document text
    • https://94ac7338-8c66-48ed-b7e4-01cccba3eff0.filesusr.com/ugd/9b8421_63fff57339124f94b9b05697e7c75601.pdf?index=trueIn PDF document text
    • https://fac30f9c-1bc3-4ff6-ac40-7ced1d2a170b.filesusr.com/ugd/3b7182_c8537eb9e3ea4b27aa7e80f58e6d1237.pdf?index=trueIn PDF document text
    • https://ba85394b-11ac-4ca4-926b-74ca936c52e1.filesusr.com/ugd/5ccfc8_876b365af11e4b0c870bd38df6b3177f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vunizi/how_to_clean_fabric_softener_dispenser_speed_queen.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/free_trader_beowulf_meaning.pdfIn PDF document text
    • https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_a64345ce27674feeb522424a2705d4f9.pdf?index=trueIn PDF document text
    • https://19aaccd0-9772-41b6-85c4-be118606641a.filesusr.com/ugd/a12125_875e5148b6574399b2990a2f48b654de.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31698 3620 bytes
SHA-256: 30e74ae48c4deafdbc79e2d56a070368088814a30d739d06669cadd190353eac
font_01_sfnt_off00032395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32395 5640 bytes
SHA-256: 4d7ae45be56154e4f0d4f295470ed29b05680623497320a1956b7bb4b0dd4c28
font_02_sfnt_off000336ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336AD 15500 bytes
SHA-256: cd631da8d39bdce72487970a7a0806982b98589115c5c59b8cdc29d7fe524aa4
font_03_sfnt_off000368a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x368A1 16112 bytes
SHA-256: 275d0ef8f619a30f75d5b67021c85ffe51dbf44d82a44ecb2d07128ff93f9399