Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9579b3a1d8bdda2…

MALICIOUS

PDF

39.0 KB Created: 2020-09-01 08:08:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe2b7f544fa52f3d96b0be6f8e22caae SHA-1: f1ea81b00df6cff2493152b37acdde9152052239 SHA-256: e9579b3a1d8bdda2c947c316f4cebc8019488cb8bab98e1819babcbe20650373
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a larger link farm operation. The embedded URL 'https://ttraff.club/wix?keyword=format+php+code+online' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL and other benign-looking PDF links, reinforcing the link farm tactic.

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=format+php+code+online
    • https://cdn.shopify.com/s/files/1/0435/0499/2421/files/kifebumubabimagagepudip.pdf
    • https://cdn.shopify.com/s/files/1/0435/4536/2591/files/90272465140.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/risekumomivedopela.pdf
    • https://cdn.shopify.com/s/files/1/0433/8191/5809/files/kivilowajewosaxupu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3102/0198/files/44415166224.pdf
    • https://cdn.shopify.com/s/files/1/0429/2358/9788/files/nebiwivoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0439/4646/files/definition_of_ratio_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0430/6812/9431/files/micke_muster_boogie_woogie_country_girl.pdf
    • https://cdn.shopify.com/s/files/1/0447/3988/7255/files/akcent_video_songs_free_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4327/files/26935589901.pdf
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/carceles_de_la_miseria.pdf
    • https://cdn.shopify.com/s/files/1/0430/8828/1761/files/81493939779.pdf
    • https://cdn.shopify.com/s/files/1/0437/7808/0919/files/tv_broadcasting_script_tagalog.pdf
    • https://cdn.shopify.com/s/files/1/0430/3382/1347/files/batilazinasijizifa.pdf
    • https://static.usrfiles.com/ugd/0779a3_2627dfdaeb224e1bbab6c77e5a445f31.pdf
    • https://static.usrfiles.com/ugd/79e0dc_0efdc6056dfe45e2a89b601b6452270b.pdf
    • https://static.usrfiles.com/ugd/b8c837_500ae9582963451ca9e8e81a37a2abc4.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_off000058a5.bin
1195813266e935e35ade2c03d3bbf39f9e831ebce75e7d61f595b2642126149a
pdf-font-stream PDF embedded font (sfnt) at offset 0x58A5 5092 bytes
font_01_sfnt_off000069c6.bin
55f974793efdec92fe63f2766b60990f5401fbfcb0e756818d1875a0fc0e380d
pdf-font-stream PDF embedded font (sfnt) at offset 0x69C6 10904 bytes