Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00297775a6b2bff…

MALICIOUS

PDF

76.0 KB Created: 2021-03-18 00:32:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: c14ff902969a7f77f3cf9e4fffbaa9d9 SHA-1: e92085965d2f34d9606539aee83a008d3b1386a4 SHA-256: b00297775a6b2bff7b0f3ace4d3239a209f7f25e97d9cd6ce8cf61d16cee2bab
166 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs and is flagged by ClamAV as Pdf.Phishing.Trojan. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests the document may attempt to execute commands, potentially to download and execute further payloads from the identified malicious domains. The presence of many links on disposable hosting further supports a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://soxebez.ru/strik?utm_term=motorola+xts5000+earpiece+australia PDF link annotation
    • https://zewabezasakaru.weebly.com/uploads/1/3/4/5/134593707/nalagizudutapez.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/7TFggge/dofoligar.pdfIn PDF document text
    • http://samyog.ru/stanley_myers_cavatina_pianozmpkd.pdfIn PDF document text
    • http://vereffka.xyz/57146801930wssvr.pdfIn PDF document text
    • https://rekizutor.weebly.com/uploads/1/3/0/9/130969391/zoborezeled.pdfIn PDF document text
    • https://pokotozumunas.weebly.com/uploads/1/3/1/4/131453498/f21eb.pdfIn PDF document text
    • https://cdn.sqhk.co/kujufemom/dwjiPhj/mitesimoluliwox.pdfIn PDF document text
    • http://defupezive.iblogger.org/honeywell_vista_6160_manual.pdfIn PDF document text
    • https://vusuvokitajize.weebly.com/uploads/1/3/0/8/130874031/janadagisore.pdfIn PDF document text
    • http://familyit.pro/relative_pronouns_exercises_eslz5lut.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/ghDcJhi/kontra_k_best_songs.pdfIn PDF document text
    • http://koteyarn.moscow/1993_ford_f150_haynes_manual6o828.pdfIn PDF document text
    • http://zelijek.iblogger.org/koboxatojaravupuzebegi.pdfIn PDF document text
    • http://appletopshop.ru/what_are_the_inferential_statistics_used_in_this_article96f90.pdfIn macro / runtime command snippet
    • http://mefuxorimuba.22web.org/14695018578.pdfIn PDF document text
    • http://xeeewq.xyz/fofuje14766.pdfIn PDF document text
    • http://my-favshopc.online/adivina_el_animal_juego_para_niosojo4u.pdfIn PDF document text
    • https://cdn.sqhk.co/gufojakig/e4igcd6/205227007.pdfIn PDF document text
    • https://dojilosadokadog.weebly.com/uploads/1/3/4/8/134890500/8578150.pdfIn PDF document text
    • http://zelijek.iblogger.org/koboxatojaravupuzeIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xisefowu/free_bubble_chart_template.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/anemia_perniciosa.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/seated_dumbbell_curl_form.pdfIn PDF document text
    • http://dorenibe.rf.gd/asus_sabertooth_z77_usb_bios_flashback.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/fidefofudi/dirk_gentlys_holistic_detective_agency_season_1_watch_online_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE991 5264 bytes
SHA-256: af2cf5176ed3fa0b90f3caf074f5e80eb3401e6c1ee8b98e4133e4140808600c
font_01_sfnt_off0000fb94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB94 11208 bytes
SHA-256: 74a04ade0f26fa1f8b1f277331937639f1f8d9366c5143782b2b59cba8ddb0e3