Malicious PDF — malware analysis report

Static analysis result for SHA-256 836d208e4d513520…

MALICIOUS

PDF

69.8 KB Created: 2021-02-14 16:40:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 314c464e72dc2ebd0dda4771176af1da SHA-1: 82b02353d438fad52c6b743de496f735ebb6b3ba SHA-256: 836d208e4d5135204c2a03cdde4bef2b0a23366897aa1a2a5303b5336790a4cd
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body and embedded URLs suggest a lure related to game hacks, likely to trick users into downloading further malware or providing sensitive information. The presence of external URIs points to the document's role in a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=grand+summoners+hack+crystal PDF link annotation
    • http://amin-ukraine.net/94169277685cnmk5.pdfIn PDF document text
    • https://cdn.sqhk.co/gubujurit/ianvggj/75028991419.pdfIn PDF document text
    • http://idealica-it.website/floppy_phonics_flashcards73wq8.pdfIn PDF document text
    • https://cdn.sqhk.co/fafojipedul/gehfE8o/81375662875.pdfIn PDF document text
    • http://lbaranaydin.com/cyborg_009_anime_1979m2j76.pdfIn PDF document text
    • http://biomaniks.website/bull_horn_sound_effect_free0lp6f.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/O1idSgg/elifoot_19_20_pro_download.pdfIn PDF document text
    • http://idealica-ordina.site/automotive_repair_business_card_templateca555.pdfIn PDF document text
    • http://wtia.space/favakiwagekuvojelazupulerlh1k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mekamaxabojumoz.epizy.com/carnivores_dino_hunter_mod_apk.pdfIn PDF document text
    • http://xediguvodolej.epizy.com/polarity_of_molecules_worksheet_page_42_answers.pdfIn PDF document text
    • http://tasefabomodewiv.epizy.com/97965408928.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/free_cover_letter_template_for_teachers.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/best_manual_cars_2018_usa.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/voguluporunilokukilujes.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/android_game_hack_no_root_apk.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_off0000d53d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53D 5376 bytes
SHA-256: 0cc02d60883a03dd0f7d7e879bd74f80cec9a14543689a56e9dc01eec0ef70c2
font_01_sfnt_off0000e765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE765 10288 bytes
SHA-256: cb7f61e1f573a766bdd4550e3800f8066793dc88f78cc6cdef65ba9e29d65882