Malicious PDF — malware analysis report

Static analysis result for SHA-256 03eb74f5446686dd…

MALICIOUS

PDF

64.6 KB Created: 2020-11-28 04:18:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 40e6dbc5ea1ce74b029dd5dd0a0125ea SHA-1: b97572245836a6de2bd003bf08f77e42dd8c4f3b SHA-256: 03eb74f5446686dd25703f8db58b9c54d982e6469c6f8dbf3be023b6f626750e
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/aws?utm_term=allegiant+full+movie++1080p'. This URL is likely used to redirect the user to a phishing or malware-hosting site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the embedded URL and the PDF format suggests potential for embedded JavaScript to facilitate the redirection.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/aws?utm_term=allegiant+full+movie++1080p In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5fa04ae8000a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403672/normal_5fa311967c1db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376601/normal_5fbe3d96e58de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372354/normal_5f8eee5c238de.pdfIn PDF document text
    • https://furureseseruwa.weebly.com/uploads/1/3/4/4/134481841/logiteno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5fa551ff09e77.pdfIn PDF document text
    • https://lepitosamodovax.weebly.com/uploads/1/3/4/3/134335454/5a35c.pdfIn PDF document text
    • https://dosedupuwosiwoz.weebly.com/uploads/1/3/0/7/130776272/64f968d3.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://s3.amazonaws.com/welanisowari/tukufapukamodixosevijasa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a6b0762-4df8-46a5-a223-4d71395e782e/mevoxejafevivebidusilagaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/carols_for_choirs_1_free.pdfIn PDF document text
    • https://www.youtube.com/watch?v=_fLg8PsLWQ0In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB109 5264 bytes
SHA-256: 4190d8847c4c23ae8c7bd3d3561f17e2853d103edec6bc5c9f68792bbb227e13
font_01_sfnt_off0000c2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F2 11156 bytes
SHA-256: c8790d88a9553272759ab155cae2d59cbc89391a1315ef3b41dbca2ccccb6682
font_02_sfnt_off0000e7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D6 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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