PDF static analysis report

Static analysis result for SHA-256 491a33c2985e608b…

SUSPICIOUS

PDF

66.1 KB Created: 2020-11-06 21:34:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c49c4d749f569cc1933fe9873d15e674 SHA-1: 5bda0b93103c8a2f8148ac010563f721439a39f6 SHA-256: 491a33c2985e608b31602925e0b5808a223ec6b4132884344a5e6cc965f024ef
44 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into downloading a malicious application. The presence of a 'download button' heuristic further supports this malicious intent. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafftec.ru/123?keyword=apk+mirror+showbox+apk PDF link annotation
    • https://xumuxurubaxuk.weebly.com/uploads/1/3/4/5/134501003/rejiri-kogubusavuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382619/normal_5f8c5f1c26430.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/97b0fad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393353/normal_5f91b9c9efc57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373522/normal_5f88c632f266f.pdfIn PDF document text
    • https://sogokuwuze.weebly.com/uploads/1/3/4/5/134500874/mavagabep.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/ronenitevodo/us_declaration_of_independence_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/samsung_wireless_charger_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/punovavizeki.pdfIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/65548376527.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/radius_of_convergence_taylor_series_ln_x.pdfIn PDF document text
    • https://senaxaxibele.files.wordpress.com/2020/11/pokedabukomisoxitoban.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_off0000c596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC596 5380 bytes
SHA-256: 1801dff499a866a3f6ca515bf1bb9ac3fbae045c102fe6f433c2d7a558dc56eb
font_01_sfnt_off0000d7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C2 10612 bytes
SHA-256: 4619906dde0700646a7cf0d59f5dd0491b1bed7ce6540317ae712f1930a48851