Malicious PDF — malware analysis report

Static analysis result for SHA-256 d077eaf2cb145d63…

MALICIOUS

PDF

74.8 KB Created: 2021-02-14 03:30:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a0c84db29f08234dfefb30a5d5abfbae SHA-1: 9bbb436602caac408118ab2a9ce5e2a8727804dc SHA-256: d077eaf2cb145d63b8c519575516edd835057ce70e132ee7e623f07bc019aee6
116 Risk Score

Malware Insights

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

The sample was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. The 'SE_CLOUD_DOC_LURE' heuristic suggests the document impersonates a cloud service to deceive the user. An external URI pointing to 'druttle.ru' was extracted, which is likely part of the attack chain. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://druttle.ru/aws?utm_term=bluestacks+apk+file+location PDF link annotation
    • http://missunik.space/79688047487nnezi.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/9fZRvih/animal_crossing_black_road_qr_codes.pdfIn PDF document text
    • https://gizetaxawu.weebly.com/uploads/1/3/1/8/131871526/felisibokunesuw.pdfIn PDF document text
    • https://cdn.sqhk.co/vejurumilef/ji2Mrgi/26084518065.pdfIn PDF document text
    • http://jadebey-x.com/sniper_assassin_5_walkthroughjiczb.pdfIn PDF document text
    • http://allrecipes.pro/98873032538e971e.pdfIn PDF document text
    • http://graatorama.space/bu_kek_siansu_download6mwlx.pdfIn PDF document text
    • https://cdn.sqhk.co/bujutinape/BtdjfZH/my_talking_tom_friends_wikipedia.pdfIn PDF document text
    • https://kusuxifitumaka.weebly.com/uploads/1/3/4/5/134593182/jazosire_sojifas.pdfIn PDF document text
    • http://dezlice.ru/629556772541pudx.pdfIn PDF document text
    • http://pinerapidsrr.com/xufadoxabuloguxesufo15vdg.pdfIn PDF document text
    • http://tipografiyav.moscow/viwagibanaw8hkr.pdfIn PDF document text
    • https://vukibipodut.weebly.com/uploads/1/3/4/6/134690361/kafatomabigawi.pdfIn PDF document text
    • http://spainwow.pro/86944538233ak2tu.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/bisiku/40173741244.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/istanbul_travel_guide_wikitravel.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/l_accouchement_dystocique.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/food_banner_design_vector_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_off0000e77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77B 5024 bytes
SHA-256: 7e5898f6aca674c4f0daa37a3bc0596c8c68568cfee412d7482c3b420f22bc6b
font_01_sfnt_off0000f8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B0 11032 bytes
SHA-256: dfbc7aac33a445d68702db7bb22b500908cb8a8f43e40e0db6584059e0cb30be

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