Malicious PDF — malware analysis report

Static analysis result for SHA-256 b293d9e70a2a4845…

MALICIOUS

PDF

68.9 KB Created: 2021-02-26 18:02:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 65922f5cbaf8448c3c6feee8e7814aa9 SHA-1: f3bd81cfb10e59ffd0027dcd6fdfe39509aa9e95 SHA-256: b293d9e70a2a4845c9cae363657904a92d5bce8163637dd8aa53336e970a1590
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://golowaki.ru/award?keyword=hansel+and+gretel+story+with+english+subtitles PDF link annotation
    • http://qlemelest.online/shola_aur_shabnam_songs_ming0ght8.pdfIn PDF document text
    • https://wuvepudikuj.weebly.com/uploads/1/3/4/7/134731811/wesepinuw.pdfIn PDF document text
    • http://zezasasipow.iblogger.org/23839192072.pdfIn PDF document text
    • http://haifaiv.ru/illinois_lottery_unclaimed_instant_p1y1zc.pdfIn PDF document text
    • https://xumebarukez.weebly.com/uploads/1/3/4/6/134687090/bomoxi.pdfIn PDF document text
    • https://guxipalun.weebly.com/uploads/1/3/1/8/131857363/533dab299a2.pdfIn PDF document text
    • http://makamar.xyz/91659195474e33wm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451039/normal_6000a5dca0dd2.pdfIn PDF document text
    • https://ravikuzisuwu.weebly.com/uploads/1/3/4/4/134470025/7684942.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466664/normal_60152e7e40f68.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/nuxulikiwab/4262521205.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/baby_doll_uma_song.pdfIn PDF document text
    • http://sipomivizipe.epizy.com/47501259987.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/what_are_the_features_of_liberalism.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/66289458856.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/icd_10_general_coding_guidelines_2018.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_off0000c3d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3D6 5264 bytes
SHA-256: a78b05795b8e7bb3570a6fe075f12304c3011cc596d40004b626b272ca0feef6
font_01_sfnt_off0000d5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B8 10056 bytes
SHA-256: 9f8a95eb49ff95653dfab35f9949de981f48c69b7f4351b5d8092717d7591c2d
font_02_sfnt_off0000f829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF829 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176