Malicious PDF — malware analysis report

Static analysis result for SHA-256 eacc08fdbbcc1ca1…

MALICIOUS

PDF

33.9 KB Created: 2020-08-28 17:41:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c1febf38ac69481108ce7a9781981df SHA-1: c1e4186d5739364e27c7a4e374867db1236f05e8 SHA-256: eacc08fdbbcc1ca1222cf73eb6ff5585c63d4aab25ddc417a1cf5f4615803f4d
120 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'. The document body, though partially corrupted, contains the same URL and text related to a crossword clue, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for obfuscation or to appear legitimate. The primary malicious URL is the most critical IOC.

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.cc/pify?keyword=new+zealand+native+crossword+clue
    • http://files.joshgellers.com/uploads/1/3/1/3/131380042/6548281.pdf
    • http://dapuxoji.endearmentonline.com/uploads/1/3/1/8/131856706/5734774.pdf
    • http://zukij.mijblaxby.com/uploads/1/3/0/8/130873826/suwujuneg_xodegudojaraf.pdf
    • http://vokef.goactivelife.com/uploads/1/3/2/6/132695278/tuwemi_batebekobatodef.pdf
    • http://files.brentfamilyfarm.com/uploads/1/3/1/3/131379781/5398689.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/40498901325.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/kirigiwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0215/files/american_casino_guide_coupons.pdf
    • https://cdn.shopify.com/s/files/1/0429/8162/1919/files/42813430603.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/75049318948.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/xuvokiwefibizimopili.pdf
    • https://cdn.shopify.com/s/files/1/0438/9657/0024/files/watusopusuxenofotenom.pdf
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/86347870740.pdf
    • https://cdn.shopify.com/s/files/1/0437/9557/9029/files/vertical_axis_wind_turbine_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/4718/9670/files/how_to_uninstall_emoji_phone.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/revarugogev.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_off000047f0.bin
30fdf5ac06a1ea098147a3c64bf17bed77ebfc6b6128ee560f9806a2a052117a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47F0 5104 bytes
font_01_sfnt_off00005973.bin
befb65fdd2fda56307ce735e255dcaec97e7e82d43b99152fe7a447d8b3a8f38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5973 9996 bytes

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