Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c39ed4e3a251e7…

MALICIOUS

PDF

77.0 KB Created: 2021-04-05 19:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5273cbdc960e211e8cadde93e06eba58 SHA-1: da292896c284093e2f704a85d23cc3f3d31b85fa SHA-256: e2c39ed4e3a251e75e3f2973586e7f74ccb3ed9f804a2d9c099ce4bea6684ad7
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body, though heavily obfuscated, suggests a lure related to 'workplace conflict resolution strategies PDF'. The presence of external URIs and the overall detection by multiple engines indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://crophysi.ru/strik?utm_term=workplace+conflict+resolution+strategies+pdf
    • https://cdn.sqhk.co/lifudidu/UgcGHhg/cooking_ice_cream_cone_cupcakes.pdf
    • http://pressit.space/tbc_affliction_warlock_pvp_guider65si.pdf
    • https://cdn.sqhk.co/fatepotax/a0gejhK/vumokadu.pdf
    • https://cdn.sqhk.co/zidodovare/ib71wge/86196454491.pdf
    • http://fruit-ita.fun/adobe_premiere_pro_cc_2020_tutorialm5ufa.pdf
    • https://cdn.sqhk.co/sudizatase/ggfXieK/18836703022.pdf
    • https://cdn.sqhk.co/rularijulen/xgjjdrN/wbtw_news_weather_forecast.pdf
    • https://cdn.sqhk.co/jejefudebuxi/jbheIE4/judenirerasawesumuxa.pdf
    • http://mmuuue.space/76483077796hg67y.pdf
    • https://cdn.sqhk.co/kuwusemob/qCyRcJP/fdic_call_report_glossary.pdf
    • https://cdn.sqhk.co/fetesulatol/dIjeV3M/airpods_android_features.pdf
    • https://cdn.sqhk.co/fudamozomeb/ihgr8je/49686893854.pdf
    • https://cdn.sqhk.co/jopubelo/gfUhbhd/vr_sky_diving_fundraiser.pdf
    • http://bobixina.getenjoyment.net/sizijeropalexavilobud.pdf
    • https://cdn.sqhk.co/mosugukasiba/wq7jegc/loxadorar.pdf
    • https://cdn.sqhk.co/kukisigafumi/rjejiMO/elton_john_kiki_dee_songs.pdf
    • http://fulokixowo.scienceontheweb.net/diseo_de_cargos_en_una_empresa.pdf
    • http://hellesypakk.online/let_us_create_man_in_our_image_nivsqzie.pdf
    • http://farotosinotom.mywebcommunity.org/the_founder_movie_questions_and_answers.pdf
    • http://fepaporipevari.mypressonline.com/lowrance_elite_5_hdi_gps.pdf
    • http://homeolimp.com/luzegufozivesukemonese612s7.pdf
    • https://cdn.sqhk.co/tivanosox/dhhPreb/12917234874.pdf
    • http://wuxixezigitezir.mygamesonline.org/frontiers_of_biogeography.pdf
    • https://cdn.sqhk.co/towevefizub/QDygjXL/zoditubijoverefike.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000f1ac.bin
00f0a4818199a6e143f47cf6ad4bbb1b061130694200b24553c3cc491e824351
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AC 5400 bytes
font_01_sfnt_off0001042e.bin
a3a97aa8242148e868734cd775a92c905da10eb05ab80f8cffb428d91b051547
pdf-font-stream PDF embedded font (sfnt) at offset 0x1042E 10056 bytes