Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecc007bf04d89f9b…

MALICIOUS

PDF

41.2 KB Created: 2020-08-22 01:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d193147a1fecfd9e90842f77758164e5 SHA-1: 8da474eaeb05e11bec0f44acfe1b197edc3bc373 SHA-256: ecc007bf04d89f9be5dbb789e4085ca408a601ae9da75a92e91cc6d3ebc20d20
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: User Execution

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the text 'installation reporting services 2016' and the malicious URL, suggesting a lure to download or access malicious content.

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/pify?keyword=installation+reporting+services+2016
    • http://files.valhallavalley.com/uploads/1/3/2/6/132695445/zerug-xuzimawagonezu.pdf
    • http://files.cloudcity.site/uploads/1/3/0/7/130738837/e0f157edc0.pdf
    • https://cdn.shopify.com/s/files/1/0435/1341/3791/files/bollywood_movies_free_2018_hd.pdf
    • https://cdn.shopify.com/s/files/1/0438/8916/4440/files/dp_airgometer_exercise_bike.pdf
    • https://cdn.shopify.com/s/files/1/0463/3486/9661/files/avast_antivirus_free_for_android_phone.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/latina_sex_tapes.pdf
    • https://cdn.shopify.com/s/files/1/0435/3540/1111/files/cabinet_ministers_of_assam_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/atsg_automatic_transmission_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/dieta_brucia_grassi_uomo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/51291829787.pdf
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/gugax.pdf
    • https://cdn.shopify.com/s/files/1/0436/7679/5030/files/13999264820.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_off000061f7.bin
10bdc4809f75a7cb0ef588ccd95ea017ae5ba50f9766a5da5bd1d96d8ee887f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 5580 bytes
font_01_sfnt_off00007507.bin
8a776b330c8373c9f079b9d60e21b52f6d452d71f95f19d796c4f99c39ede47d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7507 10332 bytes

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