Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e8e58e8830c1ee…

MALICIOUS

PDF

58.5 KB Created: 2020-08-04 05:48:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e04faac8e33132d6291fe7bca3fea9c SHA-1: 8febf9902f191aeb16ebdbcb83f7a0530ba49d39 SHA-256: a0e8e58e8830c1ee25b9cb133fe331765206667498e9328d50ffc725a2d317be
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to a redirector service. The primary heuristic indicates a malicious redirector link, and the document body, though heavily obfuscated, contains the URL that likely serves as the lure. The file is identified as a PDF, and the presence of embedded URLs suggests a phishing or redirection attempt.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=hospital+waste+management+in+marathi+pdf
    • http://files.ardentrive.com/uploads/1/3/0/7/130739951/tubili_fekepoxajesugis_jabepatum.pdf
    • http://siliw.deckermusicstudio.com/uploads/1/3/2/6/132681504/kemasuwugexani.pdf
    • http://files.denimxbonnie.com/uploads/1/3/1/6/131606314/ce86641861cc7.pdf
    • http://files.thecolumbusweightlossclinic.com/uploads/1/3/0/7/130739802/6904392.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/dezalopa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/82975568975.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8325/files/hazmat_operations_test.pdf
    • https://cdn.shopify.com/s/files/1/0430/8133/4951/files/43977223053.pdf
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/tuvulawibamexe.pdf
    • https://cdn.shopify.com/s/files/1/0449/2935/1835/files/word_recover_unsaved_document.pdf
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/penemebazopasenitixedu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8682/files/64074899201.pdf
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/rukuxabibuletafujugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1384/files/69830042025.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/14371134794.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/xifemopevadow.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/rulopufo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009a25.bin
96e99d824eedf5d8646fd3bf1a43fbd04f38ff6b905fc3d9a5cf212ca9dc7dff
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A25 5296 bytes
font_01_sfnt_off0000ac03.bin
26fed09f290a5a86a16225f97b0c357aa89ccca676ef7356851720480755000c
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC03 10168 bytes
font_02_sfnt_off0000cebc.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBC 4324 bytes