Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1adbf4a94a5726e…

MALICIOUS

PDF

70.8 KB Created: 2020-12-27 18:22:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: c665d1ee653fa7c793bfeb8aedc991ee SHA-1: 7d5283edfe5b324571c4269f5a24208d5c635ac9 SHA-256: a1adbf4a94a5726e5f0e413e81fe4f3393e7a2e7ee763e9a72fd14364f977b38
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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=doubleline+funds+annual+report'. This indicates the document's primary purpose is to lure users to this malicious site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the redirector suggests a phishing or malware delivery attempt.

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=doubleline+funds+annual+report In PDF document text
    • https://static.s123-cdn-static.com/uploads/4451955/normal_5fdd0cec3fd50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_5f9c54ec4e11b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404122/normal_5fd93e9a6c4e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379485/normal_5f8e2bd652f99.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378604/normal_5fcabfe060f71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404520/normal_5f98b29c44d78.pdfIn PDF document text
    • https://cdn.sqhk.co/zowipitilo/dicigfv/4k_video_player_apk_for_android_tv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416304/normal_5fd7061c98230.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f87100b4c752.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/3fc4291b-0f15-4f4f-a6c3-c944693bed70/la_voix_de_ton_me_lain_garcia_chauv.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/rubudaxonoxufumuzoposasa.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/meq_l_to_mg_l_potassium.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/facebook_profile_picture_for_boy_hd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bbee8fc-1e35-42a7-ab3d-b4698e577750/into_the_groove_lyrics_glee.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/xubitezurupugaki.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_off0000d6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EC 5176 bytes
SHA-256: 8a4ccde448d42a8cdafd93735e325b7d7c8bd27c122386221fc12d8edbe547ec
font_01_sfnt_off0000e88e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88E 11292 bytes
SHA-256: 766f60451b9d84c297396be9f6aa2bdabd642859cb64aab916cf3d51a3e451c9

Open this report in the interactive analyzer, or submit your own file for analysis.