Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1cc00bc5e3bf444…

MALICIOUS

PDF

65.6 KB Created: 2020-12-17 13:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: aab3f83243c9f5050050fa74b3ec26be SHA-1: 14ed47976165229a1a6fd94dbefedf4965a44e4d SHA-256: e1cc00bc5e3bf444406806a9f9f0dfdae9069392ac21ff796e3f7ab5c1678434
104 Risk Score

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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffine.ru/123?utm_term=mptc+west+bend+jobs PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc50a63c89e1c4b8fd938af/t/5fc92c602d1d0f5b74b40980/1607019617502/vr_movie_theater_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/lupusavisu.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/zufukisomaxifoxugiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8d43a0e-4d23-43c9-abd1-992732d5241e/domixunalumu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc30fa5bda9c57a97cc46e9/t/5fcaf6531415195da07c9e97/1607136852170/make_your_own_electronic_music_online_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc71922382bec7399f5a753/t/5fce5a5024c49707d3513fc3/1607359056456/87487267968.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fac75f97-08ff-4ce5-b2b0-01f03c335705/vebeno.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e555f7cf8c75402ae412/t/5fc8ab4fe21c7c679ae9415d/1606986578357/android_screen_lock_password_remove.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1138816f6d44b07bfcb5c/t/5fc4dd743570fb44d19b9b7d/1606737269523/bonaire_evaporative_cooler_leaking_water.pdfIn PDF document text
    • https://s3.amazonaws.com/lodunixodetum/lg_14000_btu_portable_air_conditioner_with_heat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56dbc92c50b1a1e95e2fe/t/5fc85e6d4b97230d050b0c52/1606966893896/xexokixinobodogajisog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc8ba9d2-9865-45df-a5a4-e29aa7e64c04/jivuxapuru.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/rukelidadutesate.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc519b12bbd74065821ad2f/t/5fc738198f07963615765756/1606891546602/five_nights_at_freddy_s_android_free_download.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_off0000c5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A9 5040 bytes
SHA-256: b96eb8f55bc53163a29e615b3281a7c6123637f48f58ba7b0fee394775b75162
font_01_sfnt_off0000d701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD701 10184 bytes
SHA-256: d82c7a6728c4eea5d75ea1f6e8792370c25185bc48b125648fdd3ec9149a4ded