Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c9810d7bd5e7f6…

MALICIOUS

PDF

94.7 KB Created: 2021-04-27 08:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 06dda10039f1f49dcdbae28f0794bd0e SHA-1: 110360d852f892bdaee95f13ca0d3d619c7b9d1c SHA-256: c2c9810d7bd5e7f6db0a697b1e8d10395f0675b95cb77fe6814657b601ba45e0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://dugedepap.ru/strik?utm_term=hayward+power+flo+lx+pump+manual PDF link annotation
    • http://alexandreablog.com/daily_mail_tv_reportersvaisa.pdfIn PDF document text
    • http://forecast.bet/9476236862w2zh3.pdfIn PDF document text
    • http://giocodigital.space/maytag_centennial_commercial_technology_washer_manualwcz6i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495265/normal_5fc7a9d08a9ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453741/normal_5fff128b601d9.pdfIn PDF document text
    • http://vinnipoh.space/nasal_cavity_function_in_respiratory_systemxi9fx.pdfIn PDF document text
    • http://vostokzapad.su/796097010157971h.pdfIn PDF document text
    • http://gakmancreatures.ru/61362748298phgik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388285/normal_5ff8c346943d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426260/normal_606e653f86cb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384037/normal_601d29fa2cdb3.pdfIn PDF document text
    • http://ideaita.fun/14430939721n6sqi.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://uploads.strikinglycdn.com/files/a922b86b-8ada-496d-a48b-755b7de38e0d/zipoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2d5c829-16e5-411b-a354-8989cbf50c1e/citizen_promaster_blue_angels_navihawk_a-t_watch_jy8031-56l.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e969e34e-76f3-42f8-9787-c005d52bb96e/76641747758.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89c7dbdf-ce2c-459b-8e12-b11641fa04eb/what_are_the_ranks_of_the_us_army_in_order.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0accec11-5ac9-4e92-8450-964c9d76eca5/asp.net_core_2.0_tutorial_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/304d6873-18c5-48b1-8861-42fc3989839b/merifupuze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f5b4453-eb63-4155-810d-376c1d06c98f/64495764574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51660c61-7201-4aa7-a7b4-2a23ef07208c/14793748565.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf8bed91-4f71-42c3-83c6-83111afef772/vazisolimuwusovudovevamas.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF780 6608 bytes
SHA-256: 7c050eb3338c21d3690e56f1d8143fe0acfc772b6d6143a0a93d9ad7c407f8c5
font_01_sfnt_off000107eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107EB 4984 bytes
SHA-256: 17737f00218be08a1eb7fb6b82c422dcebddf58320320684aaa19698d3ae6a9b
font_02_sfnt_off000118d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D9 14804 bytes
SHA-256: 4e19a5a28ad2e56e830709a9573b05e690c062ad17be8b68ffa4347f423a5ed4
font_03_sfnt_off00014911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14911 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
font_04_sfnt_off00015e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E3F 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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