Malicious PDF — malware analysis report

Static analysis result for SHA-256 957c571af10e3151…

MALICIOUS

PDF

84.4 KB Created: 2021-04-03 23:25:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f800201c60dfedc1307ad1d86781029 SHA-1: afbdbc1c21cb6cff8725a90e562f471808a9ed19 SHA-256: 957c571af10e31510c9a6ac5cfbbe5fde8aa55dd041d8be0572d74c4ac2381fc
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://soxebez.ru/strik?utm_term=the+art+of+color+johannes+itten+download` suggests a phishing or malware distribution lure, disguised as a book download. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of common phishing techniques.

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://soxebez.ru/strik?utm_term=the+art+of+color+johannes+itten+download
    • http://waludojugemupa.iblogger.org/definisi_cacar_air.pdf
    • https://static.s123-cdn-static.com/uploads/4459337/normal_5fcf80ab530c2.pdf
    • http://ranixug.iblogger.org/irony_in_romeo_and_juliet_act_4.pdf
    • https://static.s123-cdn-static.com/uploads/4366319/normal_5fe53318c4cd2.pdf
    • https://cdn-cms.f-static.net/uploads/4503767/normal_6019c900bbd0f.pdf
    • http://lulaterunudagob.iblogger.org/exercicios_resolvidos_de_analise_combinatoria.pdf
    • https://cdn-cms.f-static.net/uploads/4445114/normal_60644d053d007.pdf
    • https://static.s123-cdn-static.com/uploads/4372354/normal_5ffdb2d6401fa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lerezazo/croup_guidelines_pediatrics.pdf
    • https://uploads.strikinglycdn.com/files/4f1c89f6-88a0-4aca-8bc2-96324527f049/how_can_i_get_my_sky_q_remote_volume_to_work.pdf
    • https://591379ed-26d0-4405-baa7-5b8dadede013.filesusr.com/ugd/866ffa_11379d2a43e948c987a026f4e34d6a19.pdf?index=true
    • https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_3adfebc4e9574ac3be042fa5745148af.pdf?index=true
    • https://87d5e434-dc39-4d64-8681-877d64e204d5.filesusr.com/ugd/5660ac_d6e0d26ae9744395950538cad4828f09.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3937f5ff-b7a0-4068-8bae-0ee8554da2d6/39223615739.pdf
    • https://s3.amazonaws.com/sefipa/faluridefi.pdf
    • http://bulufuw.rf.gd/how_to_wrap_gifts_in_a_box.pdf
    • https://uploads.strikinglycdn.com/files/07664595-2be3-40d1-ae86-c0ce2a42c485/40163360977.pdf
    • https://45180a89-8b92-4d54-a4c6-cdf0ad6af3c7.filesusr.com/ugd/2b98a3_e9df464ff6cc4b5a9b37b0ae5f1841b0.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f58528d6-6cb1-45b9-b92c-5a63bf8efa18/delta_28-560_band_saw_tires.pdf
    • https://s3.amazonaws.com/dusubonifu/picsart_mod_apk.pdf
    • https://s3.amazonaws.com/gogoxowiniza/89423591193.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_off00010e14.bin
2b4df78d70596a8660cbf57c9e472cf4c5029401c5be6cf11e170bf9c614148f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E14 5228 bytes
font_01_sfnt_off00011fe5.bin
dc26d8e0f386c1b88758e5c52a33b1f3b5b719c3a25fc869ebeab059af2a632a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11FE5 10640 bytes

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