Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad52077ed39be61…

MALICIOUS

PDF

72.5 KB Created: 2021-03-29 08:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffe3654b4cc235b519f3d6eb0af49548 SHA-1: 9f7748f60123c87431d8668a3f63c52d198d5332 SHA-256: bad52077ed39be61fc140c6263fb39f02ce502f3569705a029d55f5fa40f8b54
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it's a phishing trojan. It contains an embedded URL that directs to a suspicious domain, likely serving as a lure for users seeking 'wpg free press phone number' information. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site.

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://xezojetit.ru/wix?keyword=wpg+free+press+phone+number
    • https://static.s123-cdn-static.com/uploads/4530151/normal_6003c8fe17a1c.pdf
    • https://jazazigiw.weebly.com/uploads/1/3/1/3/131398077/5f5f2c96.pdf
    • http://gebikomuxe.getenjoyment.net/73905778720.pdf
    • http://neletaparufo.scienceontheweb.net/88209024908.pdf
    • https://xepevuke.weebly.com/uploads/1/3/0/7/130775471/90e8c9d102a9.pdf
    • http://jajuviramigawo.medianewsonline.com/pandoc_install_engine.pdf
    • http://sizuxofutitarax.mypressonline.com/relations_and_functions_worksheet_algebra_1_answer_key.pdf
    • https://notowupoguja.weebly.com/uploads/1/3/5/3/135316513/40372d21f32755.pdf
    • http://tepugorotewole.medianewsonline.com/gunuzozidiruzedenalata.pdf
    • https://gurosutu.weebly.com/uploads/1/3/2/3/132303194/febebelefovusaj-xedusogupab.pdf
    • https://static.s123-cdn-static.com/uploads/4501656/normal_5fcc8d53a4ad2.pdf
    • https://vunusamonumated.weebly.com/uploads/1/3/4/0/134040658/8933881.pdf
    • https://tumofevex.weebly.com/uploads/1/3/2/7/132710745/zagubutezada-likej-nowivudoxigaju-budumurovoz.pdf
    • https://tulivugid.weebly.com/uploads/1/3/4/6/134607321/3944738.pdf
    • https://cdn-cms.f-static.net/uploads/4390328/normal_6049a8874ede2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pidodexogejax.myartsonline.com/tikidoxojimim.pdf
    • https://s3.amazonaws.com/rekawexuretowo/maxupab.pdf
    • http://mavuriwowul.myartsonline.com/kuxojapiradevejepe.pdf
    • https://s3.amazonaws.com/lolijexejomak/cinco_formas_de_comunicacion_linguistica.pdf
    • https://s3.amazonaws.com/jupudizadid/rofatunobefifore.pdf
    • https://s3.amazonaws.com/kumasala/20536678701.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df9e.bin
3d14a88730cb989b2c68a8b14153a654bb9b785caf65ca0e8978ab6f491e4fc1
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9E 5228 bytes
font_01_sfnt_off0000f156.bin
54e1670ae8a70cb531883bf6f8ccb65ad3d64c4e61fc3f4249a78714e5b799ed
pdf-font-stream PDF embedded font (sfnt) at offset 0xF156 10332 bytes