Malicious PDF — malware analysis report

Static analysis result for SHA-256 94c6f1068ac0f9d6…

MALICIOUS

PDF

86.7 KB Created: 2021-03-24 07:41:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ad71db73fbee7eef14e70606e40ebdbf SHA-1: 99d8269c00c56a011e2378ef01bec351d61aab8b SHA-256: 94c6f1068ac0f9d6ef3b32f79dcab883965947eb878f9434899445a5bdb582d2
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1190 Exploit Public-Facing Application

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an MFA/2FA-themed lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://xajibur.ru/123?utm_term=whatsapp++for+android+play+store PDF link annotation
    • https://cdn.sqhk.co/lijumifi/Mgfvhc3/1189336670.pdfIn PDF document text
    • https://cdn.sqhk.co/risubibasero/fMeUgip/muloloxesoxosumosivesara.pdfIn PDF document text
    • https://cdn.sqhk.co/xomatujod/esiahj2/nekegawufutan.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/hjbifgg/guvamusedud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408991/normal_603195a76f695.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416506/normal_602b45d4d408a.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/hfEifgS/torino_super_cobra_jet_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/RhGKSjg/american_express_card_money_saving_expert.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501770/normal_6008959d73750.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487906/normal_5ffb868bd1822.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/dkjghh2/game_baldi_basic_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vipinib/canon_eos_70d_instruction_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/oxford_student_dictionary_free.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/how_to_connect_vizio_bluetooth_soundbar_to_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/japazim.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/allison_3000_transmission_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/probability_and_statistics_basic_formulas.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/bangalakatham_weather_report_today.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/22747888615.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/english_words_with_meaning_in_kannada.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/boleyn_anna_knyv.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/what_is_biotic_and_abiotic.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/6085128858.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFD 5032 bytes
SHA-256: 348759eec91a5187b0b2d128e4a924dcc61f7906cc19e6c1b2a385a54772a6a5
font_01_sfnt_off00011019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11019 2188 bytes
SHA-256: 0cba946a1011763a5b3d0f440c704485f6d2ad2f79782fb9b8a000d9d1d112c6
font_02_sfnt_off000119e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119E3 10852 bytes
SHA-256: bdaf643cda60c33e069b64ef710f48ca273c4d6350215d479c6cfbf5ef5fdb78
font_03_sfnt_off00013ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EF3 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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