Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c214add31aed5a7…

MALICIOUS

PDF

70.3 KB Created: 2021-01-15 12:31:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d8381dda7fb01319dee36eb5c8b7815 SHA-1: d166698401dca41c821ce20f198cf90664b75114 SHA-256: 9c214add31aed5a7bfed5bf9e1dd2dcd60f07b7ba1a7a0c1e5ae30f3d9dd6e25
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a link to a 'World of Warcraft Chronicle Volume 1 PDF'. This URL, 'https://trafficel.ru/123?utm_term=world+of+warcraft+chronicle+volume+1+pdf', is suspicious and likely leads to a malicious payload or phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

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://trafficel.ru/123?utm_term=world+of+warcraft+chronicle+volume+1+pdf
    • https://sajipetifejej.weebly.com/uploads/1/3/4/8/134883768/864f70abcf00d53.pdf
    • https://cdn.sqhk.co/rapurakoke/2sGbSlS/96040893519.pdf
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5faa15dfb8fb7.pdf
    • https://cdn-cms.f-static.net/uploads/4444102/normal_5fd63643836b5.pdf
    • https://melesosinipedo.weebly.com/uploads/1/3/4/4/134475371/dorig.pdf
    • https://cdn-cms.f-static.net/uploads/4475852/normal_5fbcff06e0f74.pdf
    • https://cdn-cms.f-static.net/uploads/4491155/normal_5fba14c2d119d.pdf
    • https://nabaduvikarupad.weebly.com/uploads/1/3/4/0/134096068/sokurewag-sadavix-gejomufik.pdf
    • https://cdn-cms.f-static.net/uploads/4379744/normal_5f8d80ad6e8ca.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bejexe/foxasuluvetunojigesuk.pdf
    • https://s3.amazonaws.com/lolaritemukole/bridge_over_troubled_water_piano_sheet_music.pdf
    • https://s3.amazonaws.com/zarusegibitumet/have_thine_own_way_lord_lyrics_and_chords.pdf
    • https://s3.amazonaws.com/minaxigevani/rawopubelis.pdf
    • https://s3.amazonaws.com/zowejunef/emathinstruction_algebra_2_unit_3_answer_key.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_off0000d4ee.bin
a6890b0ed1a62aba09ba386ee10424edec2a13c06ebf0d7b851f567d4b3d0502		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4EE 5436 bytes
font_01_sfnt_off0000e763.bin
b99799ace06400e0064f09743c2efa28a7c48fc4651c0b00cb1c1b8921c03fac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE763 10848 bytes

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