Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd5ce19e581cda5…

MALICIOUS

PDF

76.4 KB Created: 2021-01-24 02:20:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5223f6d2c9098e752cbf2b114afdae82 SHA-1: d27ba246654503407e2fe7ee6278a8273b936bbf SHA-256: fdd5ce19e581cda5c731b59d2599e2f400ca013b15a4afee4f98236354ea35f1
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'Coach Carolyn White' and the authoring application 'wkhtmltopdf', suggesting a social engineering lure to direct users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/123?utm_term=coach+carolyn+white PDF link annotation
    • https://site-1179526.mozfiles.com/files/1179526/lista_de_frases_comunes_en_ingles.pdfIn PDF document text
    • http://jumovuv.22web.org/tamil_news_paper_daily_thanthi.pdfIn PDF document text
    • https://site-1171757.mozfiles.com/files/1171757/voicemod_discord_review.pdfIn PDF document text
    • https://site-1172650.mozfiles.com/files/1172650/10987936497.pdfIn PDF document text
    • https://site-1242269.mozfiles.com/files/1242269/tn_biometric_attendance_software.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/ChbBrhf/ribalepit.pdfIn PDF document text
    • https://site-1197344.mozfiles.com/files/1197344/roman_emperors_family_tree.pdfIn PDF document text
    • https://site-1245969.mozfiles.com/files/1245969/lagrima_piano_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/P8ERPib/voa_news_persian_tv.pdfIn PDF document text
    • https://site-1177729.mozfiles.com/files/1177729/aetna_better_health_pa_provider_forms.pdfIn PDF document text
    • https://site-1198856.mozfiles.com/files/1198856/carmageddon_2_carpocalypse_now_free_download.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/jijumupade/47926518508.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/music_theory_for_beginners_worksheets.pdfIn PDF document text
    • http://dunupilopun.epizy.com/15887297634.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/sindrome_anemico_2017.pdfIn PDF document text
    • http://dogirajuwuxo.epizy.com/life_in_pieces_season_4_episode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/2519336137.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_off0000e1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D7 4712 bytes
SHA-256: 888f4adc69d82d5b0c00a0c543001d476cd8481d2a6ea40c079a23baa23e583b
font_01_sfnt_off0000f1de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DE 10736 bytes
SHA-256: a8a5d4de4979481e837c559600864d0f3996535f497b7daba732e4cf2c494968
font_02_sfnt_off000116b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116B7 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e