Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba814ecdf3377cd…

MALICIOUS

PDF

47.1 KB Created: 2020-08-22 21:56:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 603a61e3a4a4e64e92777c63d38ff283 SHA-1: 22f5295113f619b20177f87c74134406507e1129 SHA-256: fba814ecdf3377cd920bcfc3ad61d86ad97fdd9bf13b7eb9d0f0fb9886bc2ca7
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the string 'Blade and soul pc game free' and the malicious URL, suggesting a lure for free game downloads. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially improve SEO for malicious content.

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=blade+and+soul+pc+game+free
    • http://files.lodgerenfrew134.com/uploads/1/3/1/3/131380504/wopimefe.pdf
    • http://files.samanthabaldwin.com/uploads/1/3/1/4/131482819/e15b74df39.pdf
    • http://files.sodakinspections.com/uploads/1/3/1/4/131438464/raxajezunada.pdf
    • http://files.complexedsimplicity.com/uploads/1/3/1/3/131384249/xelojagajuvubozis.pdf
    • http://files.monticelloteachers.org/uploads/1/3/0/7/130776503/f2ebe3b639f7.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tikumakosesik.pdf
    • https://cdn.shopify.com/s/files/1/0435/1167/7083/files/primary_prevention_of_cardiovascular_disease.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/algoritmo_de_la_division_primaria.pdf
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/android_fileobserver_example.pdf
    • https://cdn.shopify.com/s/files/1/0435/9605/4690/files/reading_strategies_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/7451/8180/files/15402471517.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/87382038626.pdf
    • https://cdn.shopify.com/s/files/1/0439/2786/3464/files/colt_1903_pocket_hammer.pdf
    • https://cdn.shopify.com/s/files/1/0452/0011/3813/files/68527409933.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
stream_004_off000068de.bin
e11ed53205762519bf75f2348ee64a1f53ffabea73232fecf96a07038335dc21		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x68DE 12084 bytes
font_00_sfnt_off00005634.bin
1804a87f74bae55cade24955257418ded839fab9b1c60c052a6ed328f37142f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5634 5524 bytes
font_02_sfnt_off00008b44.bin
c8c5c71c722aff3086d97fa6d2dd23466db280f0dcf44a9712cdf7b41d1a183f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B44 9780 bytes

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