Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ae5138d44f8de4e…

MALICIOUS

PDF

82.0 KB Created: 2021-02-25 23:05:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 91ce2df8008974845574a16a0c194e41 SHA-1: 8c8aa2a194e64048aa4f38e114816867e8c5a49c SHA-256: 6ae5138d44f8de4e7d0d8340aae52613ac091332af0161636524882587885af6
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, and ML classification strongly indicates malicious intent. The document body, though heavily obfuscated, appears to be a lure related to 'travel humidor' and 'wkhtmltopdf', suggesting a phishing or scam attempt. The embedded URL is the primary indicator of malicious activity, likely leading to a second-stage download or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=what+is+the+best+travel+humidor In PDF document text
    • http://dajexori.mypressonline.com/67754886963.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/what_are_the_hero_ranks_in_one_punch_man.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_602d52b56ab2c.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/nissan_sentra_2015_service_manual.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/a_first_course_in_abstract_algebra_3rd_edition_solutions.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/canon_powershot_a560_memory_card_error.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/piwanisaj/33557257009.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/jufitedefarubiduzikev.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/dusowalorowanapuxirufoxe.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/phenytoin_davis_drug_guide.pdfIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/wutezu.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/intonation_of_colloquial_english_audio_free.pdfIn PDF document text
    • http://wififeju.atwebpages.com/94283851076.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/connect_my_canon_mg3600_printer_to_wifi.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/read_theory_analogies_3_level_8_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/debridement_icd_10_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/wotlk_warrior_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/what_psychology_says_about_black_colour.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e37c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37C 5052 bytes
SHA-256: 78c19eb889dca346e1e0f98d179fe1dff88352de3c0038b2dc5b91adc65d8d41
font_01_sfnt_off0000f4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B5 10120 bytes
SHA-256: 288f75931635805d0c1dab91fdd7657685e1cc4839cbc45f6072d333f1b0390d
font_02_sfnt_off00011769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11769 16092 bytes
SHA-256: 2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140
font_03_sfnt_off00012c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C2F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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