Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe050585a91fda0a…

MALICIOUS

PDF

50.1 KB Created: 2020-08-16 18:38:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c514b4bfe528595c07bdbb99fdf41c8 SHA-1: acf4f2bfcc2942c057f52e188ce65e0b379e8c5b SHA-256: fe050585a91fda0a7dfcc7ea3ecfe44863db2c0eb2fb61899b04cca938b5dd22
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the target URL, suggesting the document's purpose is to redirect users to malicious infrastructure. No scripts were extracted from this sample.

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.com/pify?keyword=newspaper+article+format+class+11
    • http://zivixijag.swimlongbrooke.com/uploads/1/3/2/6/132695829/kovabetukuzino.pdf
    • http://files.charitysportfolio.com/uploads/1/3/1/8/131859261/tisagavuv_pevamele.pdf
    • http://files.lp-learningcenter.com/uploads/1/3/2/6/132681343/nafifedikugowu.pdf
    • http://files.kerrysmiller.com/uploads/1/3/0/9/130969083/327cff3.pdf
    • https://cdn.shopify.com/s/files/1/0432/5802/0004/files/triangle_law_of_vector_addition_examples.pdf
    • https://cdn.shopify.com/s/files/1/0444/0326/1606/files/jegemozojakoto.pdf
    • https://cdn.shopify.com/s/files/1/0437/1320/0278/files/98603833095.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/rivozawiduzikiduvel.pdf
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/bohemian_rhapsody_electric_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/zezemisipugipapami.pdf
    • https://cdn.shopify.com/s/files/1/0437/2814/2501/files/brent_s_deli_menu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/tukaxutubijakibavekoligej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/math_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0427/3097/9495/files/13105950001.pdf
    • https://cdn.shopify.com/s/files/1/0432/3105/1931/files/storyboard_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0437/0379/5865/files/solavadopuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/67912355773.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6693/files/duvujogotitediw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/45425898509.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_off00008625.bin
42495ad1afb6d1887819c7e56d375e63146530db9f158861edf2e39b6b1cf90c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8625 5276 bytes
font_01_sfnt_off0000981a.bin
0afb1991ad4c5a2936ea42219b43894ab04c47fd95b5367e9b3813515fd97db7
pdf-font-stream PDF embedded font (sfnt) at offset 0x981A 10136 bytes