Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bf8f0ea10d64c5…

MALICIOUS

PDF

44.1 KB Created: 2020-08-28 16:16:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68bb2a7e563350b1a87088c7f969de07 SHA-1: 8a46009e89d1b4124df5d7fb081205c94de953b7 SHA-256: d9bf8f0ea10d64c52fefe7109b2addcfd481b8f9599d959a46e7a4dfd852f2c8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=dishonored+prima+game+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including benign ones hosted on Shopify and other unknown domains. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to a game guide. No scripts were extracted, but the primary attack vector is the malicious link designed to redirect users to potentially harmful 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=dishonored+prima+game+guide
    • http://files.aflunky.com/uploads/1/3/0/7/130775009/1731740.pdf
    • http://files.goldenpandarestaurant.com/uploads/1/3/1/3/131380771/40187e9852ec530.pdf
    • http://files.blehdi.com/uploads/1/3/1/4/131453021/gugisakomogupuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9055/9655/files/android_card_games_free_apk.pdf
    • https://cdn.shopify.com/s/files/1/0450/3538/9086/files/grow_taller_after_puberty_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/zuxowinojinigiwoboponas.pdf
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/wudapowobojololi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/77163373262.pdf
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/alquimista_libro_completo_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/37383948944.pdf
    • https://cdn.shopify.com/s/files/1/0440/9583/2216/files/51277606831.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/learning_russian_grammar.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_off00005f77.bin
0888aa03e0623ed2e5baa9ddfa59c80e95ace4cbbea298b7127301aa0231e0fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F77 5144 bytes
font_01_sfnt_off000070b9.bin
a971eceffe00fab52597e4a30a58d41d4a8af21e6f6881680d057f298f0fb2d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B9 11040 bytes
font_02_sfnt_off00009620.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9620 4324 bytes

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