Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed654bfc1453da5a…

MALICIOUS

PDF

266.1 KB Created: 2021-04-16 05:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8d19a74a8b6e69b3d7404445023a073 SHA-1: 1ff34b000057e1af37cde474c958efbc8fa86229 SHA-256: ed654bfc1453da5a0cad524451ae2b0fda580adfdc9854f31f28d01878fd7d3e
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 phishing or trojan threat. The embedded URL points to a suspicious domain, likely used to host a malicious payload or redirect to a phishing page. The document body, though partially corrupted, suggests a lure related to 'gendered violence' to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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://botokaw.ru/strik?utm_term=what+is+gendered+violence
    • http://wumakelanatug.22web.org/ecological_relationships_food_webs_worksheet_answers.pdf
    • http://jalukilesojed.22web.org/igora_royal_instructions.pdf
    • https://cdn-cms.f-static.net/uploads/4388046/normal_606b171d4436f.pdf
    • https://static.s123-cdn-static.com/uploads/4383132/normal_5ff7c51e1d320.pdf
    • https://static.s123-cdn-static.com/uploads/4449602/normal_5fe49cc3d3a78.pdf
    • https://cdn-cms.f-static.net/uploads/4450355/normal_60265c1b91516.pdf
    • http://mezapadanufelon.iblogger.org/basic_c_programs_examples.pdf
    • https://cdn-cms.f-static.net/uploads/4486521/normal_603eac9d7c25e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/bde6bcf1-b122-4104-923f-7e322f3c6c26/91334722803.pdf
    • http://nogomazarem.epizy.com/kadaxajesari.pdf
    • http://sarowagilujet.rf.gd/33502814942.pdf
    • http://tewidunutazi.rf.gd/kisumadov.pdf
    • https://uploads.strikinglycdn.com/files/6d29ca90-1200-4103-af85-b69ccca939d7/50602910406.pdf
    • https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_356364b9cce446a1949ef881b131caf5.pdf?index=true
    • http://fikasusetin.epizy.com/pdf_file_reduce_size_mac.pdf
    • https://20128683-61eb-4207-b985-d468b1a81fea.filesusr.com/ugd/0049ca_81a5bb3d6f224194ae9d56881a62c976.pdf?index=true
    • http://dukagenoki.epizy.com/80449644588.pdf
    • http://nudagimanefej.atwebpages.com/52903082987.pdf
    • https://uploads.strikinglycdn.com/files/1ca94be9-c3ae-4ea7-a201-0c244b480d79/xibukebugefotuxudu.pdf
    • https://uploads.strikinglycdn.com/files/32881ce0-d4e2-4fb4-89a9-a5fa1a747ed0/watchmen_full_movie_in_hindi_dubbed_download_filmyzilla.pdf
    • http://lipabarud.atwebpages.com/sejedibiponuxodorugutugi.pdf
    • https://6ba7316d-b84b-4ccb-a32a-103c856d4013.filesusr.com/ugd/91f37e_bc50d8b063514145bafb0faf107c3b85.pdf?index=true
    • http://patigol.rf.gd/rijajatuvagisibukog.pdf
    • http://povojenase.rf.gd/vexesopikumodax.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003b460.bin
17809f9037208c1bab7654f738a6b5043ffd50255e10b01133d082b33068e47b
pdf-font-stream PDF embedded font (sfnt) at offset 0x3B460 5272 bytes
font_01_sfnt_off0003c65a.bin
45b5cbf3c98c0b45ce761d56aec0572cb24a1b769fb68a309655a4b75f4b709d
pdf-font-stream PDF embedded font (sfnt) at offset 0x3C65A 14856 bytes
font_02_sfnt_off0003f35d.bin
90aacbd404831341ba1bc8ae715f778798fdf18ce3f4a567167ed9a73840688e
pdf-font-stream PDF embedded font (sfnt) at offset 0x3F35D 21624 bytes