Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3c4646095d69587…

MALICIOUS

PDF

90.4 KB Created: 2021-04-04 02:50:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b52d973664a4be3af68fd6b46bfb0fb6 SHA-1: b33bb2cb83ac5ccc40c963e7ed593427fa4ffb7c SHA-256: a3c4646095d69587610a18808af3ca844a1171c966f512c64d4f8865d3407e48
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://dugedepap.ru/wix?keyword=ansible+yaml+cheat+sheet PDF link annotation
    • http://lightly.store/86262593105fvk0s.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/4jaOChh/field_hockey_weight_training_program.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • https://cdn.sqhk.co/puxobaku/dArcUia/simple_cute_dogs_to_draw.pdfIn PDF document text
    • http://ersoil.fun/how_do_i_set_my_canon_printer_to_scan_to_my_computer0rsnt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://minirulo.epizy.com/texanopojax.pdfIn PDF document text
    • http://jaxirelogalitis.epizy.com/bessa_r3m_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/kumpulan_ayat_ruqyah.pdfIn PDF document text
    • http://butozijiko.epizy.com/rainsoft_water_treatment_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/smile_bomb_english_mp3.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/57571216017.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/sisumomodivu.pdfIn PDF document text
    • http://texomonimumoxeb.rf.gd/brother_cs6000i_computerized_sewing_machine_video.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/82752341160.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/39874585112.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/lagu_album_terbaru_bts_love_yourself.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/kijulobokujixogu.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/dopagitawufatolot.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/narugegesonefiwubefof.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C91 5176 bytes
SHA-256: 14b1bf617a20d47ed7941fdeebf4f8ff1b828b04e8221bbcd0ab871c6b72db00
font_01_sfnt_off00011e0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0F 12108 bytes
SHA-256: 7ec61a238d516dc248b8673a952bac11692b60a3cd1f81b80aac62c34bf02cac
font_02_sfnt_off00014748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14748 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd