Malicious PDF — malware analysis report

Static analysis result for SHA-256 4915e8590f106126…

MALICIOUS

PDF

35.3 KB Created: 2020-09-12 10:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6e8c118dfe40ad50e3b02ffd7b3225d SHA-1: 1becc26cacf9dec960f8d4671ef55372ddbb1d57 SHA-256: 4915e8590f10612656e2eb449eb5a7d5592c2f7a6700b0d59860285ca87ec16a
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=clubbers+guide+summer+2006'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs designed to direct users to potentially harmful content. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=clubbers+guide+summer+2006
    • http://jufumugux.littlewisheshire.co.uk/uploads/1/3/1/3/131383839/1119216.pdf
    • http://puposojip.monarchglassstudio.com/uploads/1/3/0/8/130814328/92b3f3eb0.pdf
    • http://ginewak.leevalley.org/uploads/1/3/1/0/131070458/1535214.pdf
    • http://files.davonloeb.com/uploads/1/3/1/4/131408068/dukufiwofuxusimik.pdf
    • https://static.usrfiles.com/ugd/d99ef3_996d320fca874423b5d405b8447155d8.pdf
    • https://static.usrfiles.com/ugd/01d500_2b60fc998e5e440d8f54709fb87b9b43.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/mevumutidef.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/jaapos_author_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/7532/9445/files/muboduruzaruser.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0865/files/14526662303.pdf
    • https://cdn.shopify.com/s/files/1/0461/0487/1076/files/free_choir_sheet_music_printable.pdf
    • https://cdn.shopify.com/s/files/1/0435/7593/5134/files/vukobud.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/1009/files/zuweralebizaziroluvonuzux.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/astro_a50_bluetooth_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9769/files/56112511074.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_off00004c4f.bin
ca9f14ba6667710afe864fec8811ddd0560a84ee7d620d8f95bc7efbe151cb26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4F 5408 bytes
font_01_sfnt_off00005e94.bin
ff1c357ae335f6a6a58e50017fd57df186156d5681dac0a61bd1719cd90a3fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E94 9936 bytes

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