Malicious PDF — malware analysis report

Static analysis result for SHA-256 452ee92135f28baf…

MALICIOUS

PDF

69.0 KB Created: 2021-03-30 22:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 684ed3e139eacf7568be201fc6becb8a SHA-1: b3365f88f40db35b52550956c984879c81778b96 SHA-256: 452ee92135f28bafec3b9984385617cdc3bbbe208c4af123f55ba62f41130302
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs, one of which points to 'bologen.ru', a domain flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'Craftsman garage door opener manual', suggesting a social engineering lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

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://bologen.ru/wix?keyword=craftsman+garage+door+opener+manual+model+139 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381735/normal_601b47a70aa3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449600/normal_5fe19b70f2a01.pdfIn PDF document text
    • http://wavakuxakuxom.66ghz.com/yaadon_ki_baaraat_songs_naa_songs.pdfIn PDF document text
    • http://wewowajawa.22web.org/hp_psc_1315_windows_7_64_bit_driver_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456121/normal_6007991cba73b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412159/normal_5fdb1d493edd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480595/normal_600f4fec2b686.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/vososasoxumete/uc_browser_apk_android_4._2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5da97f8-e17a-468d-a6ee-cb514f8faf7f/68418270301.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/nazepifa.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/48537506396.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5598a3f-766d-48cf-bcba-dea91c11e10e/why_is_my_ipad_not_charging_on_my_computer.pdfIn PDF document text
    • http://surotipetufamam.rf.gd/wendys_french_fries_nutrition_facts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0f6108d-3027-41fe-a472-81a03aa0532e/vopavotisemeriwofat.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/can_collagen_improve_skin.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/favuka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2ec5628-261a-4fc5-b017-4dfa76996b09/gomawomitegufakobako.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/microelectronic_circuits_sedra_8th.pdfIn PDF document text
    • http://wepirizifomonij.epizy.com/impact_of_celebrity_endorsement.pdfIn PDF document text
    • http://zazozipuse.rf.gd/sutopalatugivosoki.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/figural_series_questions_and_answers.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_off0000d1df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DF 5636 bytes
SHA-256: 0a726a3445f53916f1166d1e85a291057fb2ae05e429d924ea09b60d2ee654ec
font_01_sfnt_off0000e4f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F7 9724 bytes
SHA-256: e66aac60c09288e6c2c8139bf2bc763ac7474c92ccea7e1891cb0878bf886b82

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