Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5e7223c43152ed…

MALICIOUS

PDF

80.5 KB Created: 2021-03-11 06:29:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ec9f7329df67cfc14e3167638bff25f SHA-1: 5f1b76ea460bdbc273d9117d020447ba3c38834a SHA-256: 6f5e7223c43152eda76125bb96a75b78fe3cbc5c129b81d7c7a33d19ca880af4
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 numerous embedded URLs, one of which is directly referenced in the heuristic analysis as an external URI, suggesting it's intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains keywords related to design templates, likely a lure.

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://xezojetit.ru/award?keyword=brochure+design+templates+pdf
    • http://santecmb-sarl.com/internal_combustion_engine_parts_and_functionsog5rd.pdf
    • https://cdn.sqhk.co/mekurapiw/jhijKy6/sabadell_8_bits_retro_mini_games.pdf
    • https://cdn.sqhk.co/wemorapi/lWthjia/gegetomutoza.pdf
    • http://nujagexurej.medianewsonline.com/dakosuvalizegerazosimotot.pdf
    • http://circleshtang.xyz/delta_28-203_bandsaw_for_sale86x1w.pdf
    • http://qrastenmap.online/moto_x3m_bike_race_game_download_apkpure5sxdv.pdf
    • http://kowojolajamuv.getenjoyment.net/79345770270.pdf
    • https://cdn.sqhk.co/tamaladafa/cdjdkOD/pusuragumaba.pdf
    • https://cdn.sqhk.co/xivomojuf/0rjhrHD/3446400452.pdf
    • http://normab-id.com/mufg_debt_capital_markets_analyst_salary9kfem.pdf
    • https://cdn.sqhk.co/wugotiparo/jdDhcjj/segatenejorisefivew.pdf
    • https://cdn.sqhk.co/pakebisas/gijNLUr/wrestling_tv_2020_latest_wrestling_videos.pdf
    • http://kkkirrreeee.space/little_dipper_crock_pot_instructionsmhv8i.pdf
    • http://mebevevi.mywebcommunity.org/pentair_ic40_for_sale.pdf
    • https://cdn.sqhk.co/tatidukigag/0iahdhf/71031268638.pdf
    • http://gaximivotekole.mypressonline.com/7895642061.pdf
    • http://mumolazesinidix.getenjoyment.net/what_is_the_difference_between_hatha_and_vinyasa_yoga.pdf
    • http://amsidisi.xyz/phn_mm_vpn_min_ph_cho_android5x2tl.pdf
    • https://cdn.sqhk.co/diwiporeb/izIFijP/my_talking_tom_game_download_app.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wutejaxevewef.myartsonline.com/pasukubafupakupumezopa.pdf
    • http://zorijefugixor.atwebpages.com/judefikunigazerapitekowol.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_off0000fcba.bin
cdf533e5dcacbbfe3be8581ac297287622483a77bda95eca106c47ba0bf8bdad
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBA 5616 bytes
font_01_sfnt_off00010faa.bin
7d0b2dac24e1eac65e1859562a7c3c722f4b745dab7aa12a4b08a76624a4db2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAA 11176 bytes