Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1107c412eac739…

MALICIOUS

PDF

68.2 KB Created: 2021-02-25 18:11:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 78f740550ab2102c6e0fc7f9307cb2c8 SHA-1: 39114beb16d946c00962ce3881164f9ebfc0d0b7 SHA-256: 0f1107c412eac7391f07caf3a8c116e3216a339522c1546a9a2645150414b182
126 Risk Score

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
  • 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://leonvi.ru/aws?utm_term=dymo+labelwriter+4xl+label+printer+software PDF link annotation
    • https://cdn.sqhk.co/xasakeza/haCjjig/power_book_2_cast.pdfIn PDF document text
    • https://ralugegab.weebly.com/uploads/1/3/4/8/134888835/5040747.pdfIn PDF document text
    • https://zogazakuf.weebly.com/uploads/1/3/1/6/131636678/bugokolejusiruf-marodava.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385026/normal_601152edb7655.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424331/normal_60330c6c390fa.pdfIn PDF document text
    • http://getcreditcheck.info/44412353468fp1go.pdfIn PDF document text
    • http://how2clever.com/borges_the_aleph_and_other_stories4ijlt.pdfIn PDF document text
    • http://topstop.site/ritomodipegiwafixozomujn6dp.pdfIn PDF document text
    • http://kernig.online/68084994137egqtt.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/jgeLNjd/machine_builder_salary.pdfIn PDF document text
    • http://help-copyrighteamservice.com/fazil_arabic_date_sheet_20195laiy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412582/normal_5fd8d26e7bc0a.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/Shchajg/8_ball_pool_app_download_uptodown.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/zovazu.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/grand_opening_banner_templates.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_off0000ce30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE30 5536 bytes
SHA-256: 57762338f674244ad4d333cb58171a7949a81f175a023fa01cbe93e39a05df2c
font_01_sfnt_off0000e112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE112 10132 bytes
SHA-256: dc1fee4cfa78cd956681429062d609effdf551dbd8b45bf0b3dd95477f27b73c