Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5e56b7ec208966…

MALICIOUS

PDF

78.2 KB Created: 2021-04-03 10:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 22ea3cbb03ca9789fe0de4481b9cfbab SHA-1: 5efb56a039ced2f030828256413edf8289e23ed7 SHA-256: eb5e56b7ec208966e004efd1efa67b1e693f768daa38660f25619674b69cf0c3
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to a 'G shock g100bb manual'. No scripts were extracted, but the presence of external URIs and the nature of the detection suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/strik?utm_term=g+shock+g100bb+manual PDF link annotation
    • https://sazopugewado.weebly.com/uploads/1/3/1/4/131453094/zijokumuguleb-lalex-bupapufumuli.pdfIn PDF document text
    • http://arendagg.xyz/ludenebuxezujupavipito7h35p.pdfIn PDF document text
    • http://interstart.online/xedanot8evh3.pdfIn PDF document text
    • http://cartest.pro/33170826846vggwp.pdfIn PDF document text
    • https://koxepaje.weebly.com/uploads/1/3/5/3/135350813/480904.pdfIn PDF document text
    • https://patoduwewoz.weebly.com/uploads/1/3/1/4/131483118/mupudakubazibik.pdfIn PDF document text
    • http://vladport.ru/29043329271vlhr8.pdfIn PDF document text
    • http://wegujojafab.22web.org/66526639339.pdfIn PDF document text
    • http://parkingtest.xyz/fingerprints_of_the_gods_the_quest_continues64a0f.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/1c85c539-c3e2-4225-9f00-7aef9645cbd9/xaluviramugen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61f9426e-7377-410e-9704-71c611118103/a_game_of_thrones_hardcover_box_set.pdfIn PDF document text
    • http://vavizugam.epizy.com/abstract_reasoning_test_test_2.pdfIn PDF document text
    • http://sejabozewilobog.epizy.com/fevixejunobebasolezunip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27577e26-e97c-460d-a5f7-51b9544e6664/american_gods_season_1_episode_2_streaming_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/zanagagupopi.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/subordinated_debt_rbi_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f44f06f8-a4cc-476a-9c65-245373ad0489/vofuzesozivumi.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/viber_for_iphone_4_7._1._2.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/animation_photo_editor_app_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ccb069e-31b8-425f-897b-5094648d9866/dozibolixuvinupajopojufe.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/renevomunetimurerasebax.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_off0000f304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF304 5544 bytes
SHA-256: 63bb02aa526ae53a38a1495353414e6cf5daaa37db763aae811eccd186c5fdf4
font_01_sfnt_off000105c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C3 10676 bytes
SHA-256: 89a9388ba0daf92dd787bbbfd92b5b6ee03e76c2189786f5d53aa96a069a52f5