Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e181ce1379f80b0…

MALICIOUS

PDF

71.5 KB Created: 2021-02-23 16:30:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c7890e6be1211013c55318c6a7d0cc14 SHA-1: da7bb35062b3f80e550770df9b9ffa6318ddf95f SHA-256: 3e181ce1379f80b0731c3b3e761b480687b8b47a6aec70eb3b121663360c9b3a
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://seumenha.ru/wix?keyword=toyota+rav4+manual+pdf PDF link annotation
    • http://vsedlyatebya.xyz/hero_x_mod_apk_downloaduymph.pdfIn PDF document text
    • http://50offshop.info/withings_scanwatch_42mm_reviewfnmg9.pdfIn PDF document text
    • http://barbanapoli.moscow/which_is_more_stable_fe2_or_fe3_and_why7u8s8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417818/normal_5ff9b3045d535.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426945/normal_5ffaa22a8b8b9.pdfIn PDF document text
    • http://hotita.space/ruguteramexogilazotovopaxdi4ex.pdfIn PDF document text
    • http://podarokinsta.site/www.liteblue.usps.gov_login_page_login2ql9y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388824/normal_600582bbe83d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458421/normal_60210bc101457.pdfIn PDF document text
    • http://all-system7.xyz/slime_simulator_app66ugp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383805/normal_60269ee62eb63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470968/normal_602e58d0c58bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374380/normal_5fd915200fcc6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460057/normal_601ae9c57516c.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/xefejevife/gseb_hsc_computer_answer_key_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/jozarusu.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/rigupukiforetonaba.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/eeg_measurement_cheat_sheet.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_off0000cf2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2B 4924 bytes
SHA-256: cd4c2349bc3f19b80ce47efd66a6caa109c1eb509a981135ae47ab5d52b2bd16
font_01_sfnt_off0000dfd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD4 10268 bytes
SHA-256: 38e86ce4ad42498e11e23722ea32782d054ea73a1f9e8d74376fcabce319adf8
font_02_sfnt_off0001030d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030D 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f