Malicious PDF — malware analysis report

Static analysis result for SHA-256 145a163083e20301…

MALICIOUS

PDF

64.3 KB Created: 2020-11-26 04:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7b03c6a8030a7bace1c5d6bd6c2c7205 SHA-1: 9166c664cd2c9c64543a2e719eb7a8951b1c439a SHA-256: 145a163083e203018aa065c94f5cacda39391be18d53a517ad88c8d4b11346f8
104 Risk Score
Tags
free-cdn-ebook-manual-lure

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. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffset.ru/strik?utm_term=acer+cb3-532-c47c+15.6+chromebook+charger PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366957/normal_5faaa37220ad5.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/fonibinaraj/81243274025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d3c63c-d415-4d4b-87de-64fb22977872/2845763130.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/bharat_movie_song_zinda_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/sonic_4_episode_2_apk_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/360c8e83-6721-4f3a-b574-6c9c6923ef54/99934776589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1d7001-5bef-465e-9449-182cfe672b14/free_converter_from_to_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18cc337f-cd99-4b96-bac6-da7761a885b4/17776376410.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4242b4a7-daa9-4c96-99e3-6685f0282ad4/12145605816.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/casio_illuminator_gold_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/tamil_hd_movies_free_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/xepisegaxige.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/vivofit_2_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/megepopowik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d62ea4d8-16ce-437c-9bb7-34eabecd168a/77324483173.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/bonpalashir_padabali_movie_song.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE06 5608 bytes
SHA-256: 41c529b089d5e2c8a910d50e6516c40d0827b6cadb8e3b4bdb18db055173f695
font_01_sfnt_off0000c132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC132 10324 bytes
SHA-256: b40c7980d13e5cee80752deb92a5fc07909d8ff973fc06d6d432e93cd0acec0b
font_02_sfnt_off0000e461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE461 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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