Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2d95a188a73c98…

MALICIOUS

PDF

79.9 KB Created: 2021-03-30 20:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a27cc39553c7446498cd807af8022562 SHA-1: 11403cae8b3b88e6333aa2e991140031b3cc7683 SHA-256: 5d2d95a188a73c98ef4ccbe110d9cc32e97fa7594e0028860ac0707fc12c0c4c
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nipisod.ru/award?keyword=infant+tylenol+dosage+chart+pdf PDF link annotation
    • http://nugawijuxuv.mywebcommunity.org/perafuzimolav.pdfIn PDF document text
    • http://minosijasif.mypressonline.com/l_alchimiste_livre.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwebuvowo/hjaYhFX/ghost_laughing_sound_free_download.pdfIn PDF document text
    • https://fazolusafiwef.weebly.com/uploads/1/3/4/5/134585025/wegiwob-vutovukimo-jalurar-dupaj.pdfIn PDF document text
    • http://vopagokiniki.mypressonline.com/castration_in_dogs.pdfIn PDF document text
    • http://gikadoketu.iblogger.org/xevukewopegeludidaj.pdfIn PDF document text
    • https://cdn.sqhk.co/manaruparil/6k362OC/zujomugapuzomad.pdfIn PDF document text
    • https://wutotopuwa.weebly.com/uploads/1/3/4/4/134464713/26b64d4.pdfIn PDF document text
    • http://kulanefimolon.mypressonline.com/xefowazu.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/GOahchf/72568190533.pdfIn PDF document text
    • https://dobopekajami.weebly.com/uploads/1/3/4/3/134314215/1468963.pdfIn PDF document text
    • http://vizazovabula.mywebcommunity.org/tippmann_98_custom_act_platinum_series_sniper_package.pdfIn PDF document text
    • http://pakekoramiduwin.getenjoyment.net/tologoketilow.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/wuwipubidozekevawiziremem.pdfIn PDF document text
    • https://jizetexosobuwek.weebly.com/uploads/1/3/0/7/130740437/tikigil-mugef.pdfIn PDF document text
    • http://viruxego.mygamesonline.org/lodomopib.pdfIn PDF document text
    • https://cdn.sqhk.co/fojevimexu/KTejhia/jolly_phonics_abc_song_lyrics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wusone/10800131622.pdfIn PDF document text
    • http://dojiseb.epizy.com/apps_programmieren_android_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/how_to_pair_airtel_remote_with_sony_tv_remote.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/wubibapotabisuz.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/xenomupomofudozugoxafud.pdfIn PDF document text
    • http://fujuresaw.epizy.com/12641121503.pdfIn PDF document text
    • http://seroritubofa.atwebpages.com/metode_pelingkupan_dalam_amdal.pdfIn PDF document text
    • http://lugirike.epizy.com/arbeitszeugnis_formulierungen_gut.pdfIn PDF document text
    • http://vizulubafaxal.epizy.com/mystic_messenger_jumin_guide_day_2.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF928 5456 bytes
SHA-256: a5ddaa19942c1f881b5a675b805e1f47727355dbe0f6f4f686fac6cff37c343a
font_01_sfnt_off00010bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC1 10840 bytes
SHA-256: 93ee01ebb2887a27ba8ef96cbf8d58060922126690aef49e5c7fe0985d110fb2

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