Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa315682c22bf4b7…

MALICIOUS

PDF

80.0 KB Created: 2021-04-08 09:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 570b7bd3633e17303ee0381ad4110198 SHA-1: ac9540f45d2589171893fdcaf0d7bb442be728d9 SHA-256: aa315682c22bf4b7ffc879983364cb1f6aa4078c164d0ef19e14e270aaee2a3b
136 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that appears to be a lure for downloading an APK file, suggesting a phishing or malware distribution attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document may be instructing the user to decrypt a payload, further supporting a malicious intent. Although no scripts were extracted, the presence of external URIs and the ML classifier's high confidence score suggest this PDF is designed to facilitate the download of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://druttle.ru/wix?keyword=pes+2015+apk
    • http://zoomita.space/empyrion_seed_generator5knrd.pdf
    • https://cdn-cms.f-static.net/uploads/4486522/normal_60617a0622392.pdf
    • http://educationonline.website/70054227566conpe.pdf
    • https://cdn-cms.f-static.net/uploads/4392868/normal_6020555998b86.pdf
    • http://lunagogafoxoj.sportsontheweb.net/how_to_fix_ink_absorber_is_full_canon_mp287.pdf
    • https://static.s123-cdn-static.com/uploads/4379038/normal_5fcf0701e2bbe.pdf
    • http://gojevomarokabe.getenjoyment.net/bilingual_brain.pdf
    • https://cdn-cms.f-static.net/uploads/4470835/normal_605670d3e00ee.pdf
    • https://cdn-cms.f-static.net/uploads/4386591/normal_604107cb5147a.pdf
    • http://submonster.xyz/20738649916v28m8.pdf
    • http://levelupguild.com/why_is_h2so4_a_stronger_acid_than_hso4-gfviz.pdf
    • http://damvglaz0.xyz/34519842572onelh.pdf
    • https://cdn-cms.f-static.net/uploads/4369152/normal_60302eacee8d3.pdf
    • https://static.s123-cdn-static.com/uploads/4407810/normal_5fe25b583784e.pdf
    • http://riniwodifole.medianewsonline.com/zodonez.pdf
    • http://apkfreeze.com/sitemapPes
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/845889c7-1331-4ab9-b97f-7e365d5b984c/54377628404.pdf
    • https://uploads.strikinglycdn.com/files/897de446-d79d-4554-bd2e-2c64620ab6c3/89484004783.pdf
    • https://uploads.strikinglycdn.com/files/527dc940-cbf0-440f-a051-9e5c6eecc3a4/rainsford_character_traits.pdf
    • https://s3.amazonaws.com/liguwubore/reiki_meditation_for_beginners.pdf
    • https://s3.amazonaws.com/radubozufiwo/13774361092.pdf
    • https://uploads.strikinglycdn.com/files/f335a92b-a12e-4a3d-8d02-a7912be838ee/global_warming_map_skills_worksheet_answer_key.pdf
    • http://jumepenitujox.atwebpages.com/kumufiwomajexoziler.pdf
    • https://uploads.strikinglycdn.com/files/abe24cc9-74dc-4106-aca4-45c29ca6eb54/lawn_boy_10550_service_manual.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_off0000fabc.bin
3fe0bb1d9ae2089f752c45fa46683ea9c057c488265c3bcb9501acae9f109e3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFABC 5200 bytes
font_01_sfnt_off00010c92.bin
8c3d1301eded236e5743cc9e2d490b9bf66b592592b64b2d34b09303bfa99881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C92 11204 bytes

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