Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba2175165c40b9e5…

MALICIOUS

PDF

53.4 KB Created: 2020-08-30 05:23:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 783ea22e14c9e86af7c5012fd7fc50cf SHA-1: aed53e9fe8c66733a2095b0456938cdcd006aecd SHA-256: ba2175165c40b9e5e9b92916924f3fabd4aa1e12feb7cd045479ce61a779c4d2
128 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.ru'. This URL is likely used to host phishing content or distribute malware. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. While no scripts were extracted, the presence of a malicious redirector and the 'SE_DOWNLOAD_BUTTON' heuristic indicate a clear intent to lure the user to a harmful destination.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/wix?keyword=aladin+2009+full+movie++720p+khatrimaza
    • https://cdn.shopify.com/s/files/1/0452/4628/3937/files/aims_and_objectives_of_research_methodology.pdf
    • https://cdn.shopify.com/s/files/1/0437/1120/1435/files/chemistry_a_molecular_approach_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0436/1152/1181/files/pezibu.pdf
    • https://cdn.shopify.com/s/files/1/0447/6325/0839/files/94545066954.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/26011765071.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/furosesamipuramef.pdf
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/issuu_publication_download.pdf
    • https://static.usrfiles.com/ugd/b8c837_c80be75911d54b73a1e4a307ccab9268.pdf
    • https://static.usrfiles.com/ugd/b8c837_7f344bbd63c14397ab3ea4d46e266329.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c55765bbe5749f695c7ef89e18e9ac8.pdf
    • https://static.usrfiles.com/ugd/136d07_6145795246b8493e92d586af5b8976b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_95420d694e0a40de886ba18e1d17b003.pdf
    • https://static.usrfiles.com/ugd/2813e2_2994287a94c1466cbea0268c1ce176ba.pdf
    • https://static.usrfiles.com/ugd/cf79db_fe67f3a503624e9ea8f89cfa396f3c49.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052ee.bin
ce92c5616c2d2dfd61d3fc7c4e6c3288e8468198826a22a05b16b2ffbb025afb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52EE 5776 bytes
font_01_sfnt_off0000667b.bin
25d2fbfb5dd46bce752f1a10cbb8fe29a5ece10bd9e4a33cfa5ea6c363d8700b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x667B 20968 bytes
font_02_sfnt_off000086ae.bin
fc56fa02dbe3458291c5fb7062dec2b01f2226dd21b4eff9ce88880a69c4a691		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86AE 2276 bytes
font_03_sfnt_off00009078.bin
547c7838ba60fe9eddba58d4ce78ee6ef4eca8bffad169977aa97020bac99ca0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9078 14912 bytes
font_04_sfnt_off0000be8c.bin
589f2a64e89766a8ae62896ea8444fa1a87810255c984bbc4fd2a260c4929d56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE8C 2056 bytes

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