Malicious PDF — malware analysis report

Static analysis result for SHA-256 6975e8c70f2ded36…

MALICIOUS

PDF

79.4 KB Created: 2021-04-29 11:57:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ccbc6ebc3d3684edf90c1e9a19dd81dd SHA-1: 67cfd8a6b64d6474f39374dd83351e40e41a4d9c SHA-256: 6975e8c70f2ded3690e4116979b603122e5617e3f785f66112cfe2271bbc7cd5
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm. The primary URL redirects to a site offering a 'Garmin 2555lmt update', a common lure for phishing or malware distribution. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent. No scripts were extracted, but the PDF structure and URL analysis strongly suggest a phishing or malware delivery attempt.

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://baarspo.ru/strik?utm_term=garmin+2555lmt+update PDF link annotation
    • https://cdn.sqhk.co/xatuxazaz/djghipY/wuweruvedofilo.pdfIn PDF document text
    • https://cdn.sqhk.co/zezinojox/cjbgjif/live_cricket_match_today_online_ipl_2020.pdfIn PDF document text
    • https://xemexavowud.weebly.com/uploads/1/3/1/8/131857479/9714493.pdfIn PDF document text
    • http://afracheat7.xyz/12944513152y1c5o.pdfIn PDF document text
    • https://tilavulam.weebly.com/uploads/1/3/0/7/130739056/75019.pdfIn PDF document text
    • http://itclick.pro/street_fighter_4_ultra_moveszzbu3.pdfIn PDF document text
    • http://bubble1.space/samsung_galaxy_s10_wallpaper_freed7pbp.pdfIn PDF document text
    • http://copyright-securityx.com/rigotelenejuwusqou9.pdfIn PDF document text
    • http://copalofa.site/conversation_interview_questionsrzo98.pdfIn PDF document text
    • http://b2b-servis.ru/wugamiz2pka.pdfIn PDF document text
    • http://latencfsrt.space/26591673869mjxme.pdfIn PDF document text
    • http://cmb-accueil.com/94126948012g5wfz.pdfIn PDF document text
    • https://varupeneg.weebly.com/uploads/1/3/0/9/130969993/guvutebis.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/gkJPXnt/48948430707.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a03fe8e7-77cb-42c3-98dd-5efee7b5c823/us_army_recruiting_command_patch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c7eb1ef-63cc-46ff-9a95-169879ef8c4d/68145902626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6c9947f-f557-4c09-9bca-82a68c1ff92f/american_red_cross_cpr_first_aid_classes_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7748865-65dd-4110-b63c-f53df3ae842a/94177363622.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE744 5216 bytes
SHA-256: 7f8755a0f85662742fcc3211c2d82b2f7a5c01a081aaa71914fd98049c416fe6
font_01_sfnt_off0000f8f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F2 10164 bytes
SHA-256: a5da87892f069d0f6e25d9dc82eb0e3c60b44c50a3397cfeda56ee7c913b35f2
font_02_sfnt_off00011bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BED 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330

Open this report in the interactive analyzer, or submit your own file for analysis.