Malicious PDF — malware analysis report

Static analysis result for SHA-256 472ba6a007f96bda…

MALICIOUS

PDF

79.6 KB Created: 2021-03-28 06:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acbd36853c71790a8c16be7752a8224f SHA-1: 843d019715d3be2eb3b3f993bc606b4d6bf3c578 SHA-256: 472ba6a007f96bda1ad97a4cce358ec92637f4b057b52b90a9d4a11a927bf75f
96 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://pelibifir.ru/strik?utm_term=1500+calories+diet+chart+indian` suggests a phishing or scam lure, attempting to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing attack delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/strik?utm_term=1500+calories+diet+chart+indian
    • http://premial.su/how_to_look_at_old_satellite_images_google_mapsp99m6.pdf
    • https://cdn.sqhk.co/xamitarerivu/gfgj2id/41652149010.pdf
    • http://prostosite.site/44311693908jbkfn.pdf
    • https://cdn-cms.f-static.net/uploads/4473432/normal_603d22e44eb6e.pdf
    • https://cdn.sqhk.co/jarogofef/ShhCLji/gunbird_2_classic_edition.pdf
    • https://cdn.sqhk.co/kosibowo/ibxibie/74680739605.pdf
    • http://buviturowugigew.66ghz.com/answer_love_myself_bts_letra_espaol.pdf
    • http://finansi-7.online/how_to_reset_citizen_e820qajvd.pdf
    • https://cdn.sqhk.co/xawobovuji/C5iejc1/15025708995.pdf
    • http://pshcomonhere.xyz/98171671146utfda.pdf
    • https://static.s123-cdn-static.com/uploads/4374838/normal_5fcf0d88d4ffc.pdf
    • https://cdn-cms.f-static.net/uploads/4416140/normal_604815d6ca0ea.pdf
    • http://noverst.xyz/twilight_by_stephenie_meyer_summarymv5ub.pdf
    • https://cdn-cms.f-static.net/uploads/4471985/normal_602a59964980b.pdf
    • http://madewithsunshine.com/sivafilufodidipuqe972.pdf
    • http://ita-women.space/40867656469rkgal.pdf
    • http://titanof-filtr.ru/how_to_read_architectural_drawings_uk3xwc6.pdf
    • https://cdn.sqhk.co/xejudawadoni/ljggigj/legewi.pdf
    • http://instapodarok365.site/xodojegumgylm.pdf
    • https://static.s123-cdn-static.com/uploads/4486963/normal_5ffb4933df50e.pdf
    • http://inertbhjbj.ru/pathfinder_adventure_path_hellknight_hillorujf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/medaliwifufugel/27422533060.pdf
    • http://duvufewitopemaw.rf.gd/tekken_8_game_ppsspp.pdf
    • https://s3.amazonaws.com/makixibawumebol/64290637896.pdf
    • http://ziwutaje.epizy.com/musival.pdf
    • https://s3.amazonaws.com/dazifozixawus/inventions_and_inventors_unit_3_worksheet_1.pdf
    • https://s3.amazonaws.com/bogijexu/web_banner_design_psd_free.pdf
    • http://leligikolapib.epizy.com/90539259664.pdf
    • http://mitudosukekunif.epizy.com/xodatolutimagafaseb.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa21.bin
d58c19b2f69a11fb3f196e6762ae86731e42ed672d537890f9294269ce1bde0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA21 5248 bytes
font_01_sfnt_off00010bf2.bin
4cc3296da9a224fc524b75d7cb6a1dc4078093503526044e6914dda9e540419e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF2 10764 bytes

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