Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d326114171d9cb…

MALICIOUS

PDF

77.0 KB Created: 2021-04-11 04:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1ed1ebce52c7745e89d33e7c3617387f SHA-1: 5d2dde7f73d95695fcdf39f345b0652e8bf56724 SHA-256: c2d326114171d9cb6a46eb67e65be8be2ac9d6304e27573076bc7c22acbdffeb
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 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/strik?utm_term=zebra+zt410+barcode+printer+head+price PDF link annotation
    • https://duwujesipegon.weebly.com/uploads/1/3/4/8/134883919/8ddab2.pdfIn PDF document text
    • http://danoguvokapijof.medianewsonline.com/the_performance_appraisal_question_and_answer_book.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/microsoft_excel_flowchart_templates.pdfIn PDF document text
    • http://saduzemed.mypressonline.com/catalog_avon_c4_2020.pdfIn PDF document text
    • http://sugalomiwuto.getenjoyment.net/gekefajuwurimofex.pdfIn PDF document text
    • http://tapadobav.iblogger.org/fepofiwuvatupukejesi.pdfIn PDF document text
    • http://jiguvesowa.22web.org/binomial_coefficient_examples.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/9445498.pdfIn PDF document text
    • http://pobunav.sportsontheweb.net/sociocultural_theory.pdfIn PDF document text
    • https://dunogijejuj.weebly.com/uploads/1/3/0/8/130813547/2104343.pdfIn PDF document text
    • http://rivivivojizejit.22web.org/23431094782.pdfIn PDF document text
    • http://zezasarasojid.mywebcommunity.org/56929502096.pdfIn PDF document text
    • https://ligepakege.weebly.com/uploads/1/3/1/8/131871609/kebogixejuxoro_jamugoremivam_kitunexunawawu.pdfIn PDF document text
    • http://lajafago.medianewsonline.com/gixew.pdfIn PDF document text
    • https://xavitutasufeja.weebly.com/uploads/1/3/4/6/134669981/tezanak.pdfIn PDF document text
    • http://sizegoduxuxa.mygamesonline.org/cultural_factors_affecting_mental_health.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sevuvev.epizy.com/handlebar_moustache_trimming_guide.pdfIn PDF document text
    • http://pazoluno.epizy.com/jisimoxapig.pdfIn PDF document text
    • http://farapatenaru.rf.gd/avast_mobile_security_pro_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/5614169125.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/telugu_v6_bathukamma_audio_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/fender_super_champ_x2_amp_model_list.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/bts_run_ep_33_eng_sub.pdfIn PDF document text
    • http://bitemidimalu.epizy.com/zoxakuxetukuwodirowutota.pdfIn PDF document text
    • http://burisaxaz.rf.gd/wahl_arco_se_professional_cordless_pet_clipper_kit.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_off0000efe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE2 5380 bytes
SHA-256: 65320d5e2b2cac8265305ce5f27af71b6b4dc93c2377f8c016da73e723ef5d34
font_01_sfnt_off0001022f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022F 10668 bytes
SHA-256: bb25eba3272c19e038218cdbefcc48203a1f5112fabb75f7e5514458878daa62

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