Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fa5e9cfe4b07e01…

MALICIOUS

PDF

117.1 KB Created: 2021-02-17 16:38:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: c9ffa83be3566f54c42f7f73061a5fc4 SHA-1: 66ec97ab78c4d320200af842888be683c7906939 SHA-256: 6fa5e9cfe4b07e010619d66c4ceb39e752a421d98823467c923b755dbd01edcf
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL and numerous other suspicious URLs suggest the document is a lure, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains references to 'derivative and integration rules' and application metadata, which are likely part of the social engineering pretext to direct the user to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=all+derivative+and+integration+rules PDF link annotation
    • http://sunny-web.ru/poultry_seasoning_on_baked_chicken6g3lh.pdfIn PDF document text
    • http://povar2020.site/kamyab_jawan_program_form_2019dku38.pdfIn PDF document text
    • https://cdn.sqhk.co/pobijejok/ANI3hbS/85945857663.pdfIn PDF document text
    • http://healthit.space/453594922897r4yr.pdfIn PDF document text
    • http://siankaanmexico.com/hd_wallpapers_1920x1080_for_mobileb9j9o.pdfIn PDF document text
    • https://fukuzodi.weebly.com/uploads/1/3/5/3/135329923/496cae50d80e7.pdfIn PDF document text
    • https://noduxulab.weebly.com/uploads/1/3/4/9/134901810/9294010.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxeneson/X6kic8v/netflix_original_christmas_movies_ranked.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/aXvgebp/xapipipogisozijiz.pdfIn PDF document text
    • http://jumofusifabezol.66ghz.com/application_form_for_rbi_grade_b_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/RQtihhg/musinigamosevid.pdfIn PDF document text
    • http://juwidasomasi.iblogger.org/bsc_nursing_online_admission_form_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fobunedofakane.rf.gd/texedurusota.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/tnpsc_awards_and_honours_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/dark_mode_gmail_android_pie.pdfIn PDF document text
    • http://zowolowoziru.rf.gd/witikakafanizun.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/calculus_ii_lecture_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/soul_music_mixtape_free.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_off00016305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16305 5040 bytes
SHA-256: bda5cbeff75cc70c2f336370c1b823af993d836dc86ee79afbefb4614edc57ff
font_01_sfnt_off0001743d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1743D 18276 bytes
SHA-256: 9d5ad71846d79628e6ebd6961a45e089731fb8e32fde39f49c8df6ea0e0ec184
font_02_sfnt_off0001ae6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AE6D 17004 bytes
SHA-256: e8aa3213df684a8801d7b13b398330721ecc2e95d73d10d97351397eda93d2b6

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