Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb60ffdcfcbffcf…

MALICIOUS

PDF

80.4 KB Created: 2020-08-14 04:25:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 389552f40c26ca70702e571f608a8843 SHA-1: a6811e35d99f4fcef4ff3e83ec3ea551dfaffac3 SHA-256: 8cb60ffdcfcbffcf6a0f0f39447e79b819f9c786e7048979c37ea5bf4016e15a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. This suggests the document's primary purpose is to trick users into visiting malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.com/pify?keyword=duchess+of+malfi+pdf+with+line+numbers
    • http://files.murphysheanon.ie/uploads/1/3/0/7/130740483/9301840.pdf
    • http://kumogoded.thecroftbourton.co.uk/uploads/1/3/0/8/130874222/3328165.pdf
    • http://files.kitsbbqexpertsonline.com/uploads/1/3/1/3/131397973/9701634.pdf
    • http://files.ronaldscottprice.com/uploads/1/3/1/6/131637037/f5c9db0117e767.pdf
    • http://files.writingsfromjanmitchell.com/uploads/1/3/0/8/130874189/458008.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/piripigunavidibox.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/dejisetelimarugagabori.pdf
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/latonedukewumoxogimawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/4601679763.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/flsun_cube_3d_printer.pdf
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/calculus_graphical_numerical_algebraic_4th_edition_online_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/date_sheet_ignou_dec_2019.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/10697125904.pdf
    • https://cdn.shopify.com/s/files/1/0444/1423/8887/files/balanced_diet_chart.pdf
    • https://cdn.shopify.com/s/files/1/0439/3641/5899/files/84153026265.pdf
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/jujezotiluxagewadeliri.pdf
    • https://cdn.shopify.com/s/files/1/0430/8841/2836/files/aplikasi_convert_ke_word_di_android.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe04.bin
e99ae610a5a5f635c9c769e66b867ee9579d3d24502f8f8a7bd4bdf1655b46a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE04 5628 bytes
font_01_sfnt_off00011110.bin
4fb3135c0b7093812c6fa7d713a45dc3fefdbe6620c0ac709cea27c6896c9b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11110 10264 bytes

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