Malicious PDF — malware analysis report

Static analysis result for SHA-256 cec0fa9d6b1af852…

MALICIOUS

PDF

48.0 KB Created: 2020-08-30 09:52:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fe47bee3a991ee00f43d967bc8a91ab SHA-1: aea8f775460415ab797c2c1d03e296b741a29f23 SHA-256: cec0fa9d6b1af8528b845ae337f353a30af41341f0ff5c11cd6a33f5a135959d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Emulador neo geo para pc con roms in' and the malicious URL, suggesting a lure to a potentially harmful site. The presence of many Shopify links, while mostly benign, is characteristic of SEO link farm techniques used to disguise malicious intent.

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.ru/wix?keyword=emulador+neo+geo+para+pc+con+roms+in
    • https://cdn.shopify.com/s/files/1/0431/3926/8769/files/google_sheets_count_if_cell_contains.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/pesigamedi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3429/6988/files/31102347760.pdf
    • https://cdn.shopify.com/s/files/1/0438/9135/9899/files/6766923853.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/thesis_on_islamic_banking_and_finance.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdf
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/expanded_form_math_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/zozajemosepedibubuzoga.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5676/files/bescherelle_espagnol_la_grammaire.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/jivufataki.pdf
    • https://static.usrfiles.com/ugd/912de2_42467af5ef6a4f0dbdabf73cd09473bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d459e0df3594179a2af038a8a62afd7.pdf
    • https://static.usrfiles.com/ugd/b8c837_b012b1bd8bbb4e509d7b0874d4704213.pdf
    • https://static.usrfiles.com/ugd/b8c837_1353e6e07bad48c5b2d358914f14a1f0.pdf
    • https://static.usrfiles.com/ugd/510a18_98463653911a456eba358b314c159847.pdf
    • https://static.usrfiles.com/ugd/43d598_060c370ce62e4d5686cdd1581c1f5112.pdf
    • https://static.usrfiles.com/ugd/b8c837_c3f3980ecb40432683dddd56453d5a04.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_off00006460.bin
16df1ebd997f26c5823106679c84da83b3195c9175e7d60c2097e72cda7e14cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6460 5348 bytes
font_01_sfnt_off00007670.bin
9ee7db78a680e954fc83827cb3b0ef6d483254f0c29ad6cde1ee3630ce45ecab
pdf-font-stream PDF embedded font (sfnt) at offset 0x7670 2904 bytes
font_02_sfnt_off00008263.bin
23f63fe02f3a5e83ecb4bac5f42d8082035efa5e34a3ad1b9df3d72057f69e4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8263 15052 bytes