Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2edbe13905bf3f5…

MALICIOUS

PDF

43.3 KB Created: 2020-09-02 01:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd5fb41c4dd7521ab82db4c13a3d9545 SHA-1: 343f3c085a9479d5a749aef0dbbc3eeee90d55b8 SHA-256: d2edbe13905bf3f528e93f8d648e449b40861e0c71061a505418b2e30997c7d8
152 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 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify and static.usrfiles.com. The document body, though heavily obfuscated, also contains the malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to external content. The primary intent appears to be redirecting the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wix?keyword=aranyakam+film+song+free
    • https://cdn.shopify.com/s/files/1/0434/8579/0358/files/sigutadidiniwazib.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/23682288097.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/fawupugozi.pdf
    • https://static.usrfiles.com/ugd/277b62_385479564d6844ff81b3df874c7d80b8.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_084314b56cd44506800786a07d806cc3.pdf
    • https://static.usrfiles.com/ugd/5b9a87_c088ba7127544494835dcb19d7e12f74.pdf
    • https://static.usrfiles.com/ugd/aff7ca_125090d1ac6f49269aa49e12b567a7f5.pdf
    • https://static.usrfiles.com/ugd/cec570_adda86a8581449f5b9225559152ed99a.pdf
    • https://static.usrfiles.com/ugd/eb6612_be4abd5e55e0432ca846c948be93d17d.pdf
    • https://static.usrfiles.com/ugd/b8c837_db432302575d4badb9a9a30699d2c826.pdf
    • https://static.usrfiles.com/ugd/3aca14_4dc5e020c4cd4c3887e3cdb548b59698.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000491d.bin
52302d6f04372f173f10aadb9a57871efbd3dae06c50299ee12e80918f17618e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x491D 5240 bytes
font_01_sfnt_off00005ae6.bin
b6b8f8d5503c63909be38d869138dd866fe003f17a0095dbf1917af7142477a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE6 3436 bytes
font_02_sfnt_off00006826.bin
50d9a3d79679c0f9e8f6f7bf320541657d3a486b6c5a1d2addada8395a7e1a86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6826 10012 bytes
font_03_sfnt_off00008a9d.bin
22e3a265051de049fcf7fb23205ac081a5706510055ebc504bc7ee755b3f2d84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9D 16240 bytes

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