Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25445074be70edd…

MALICIOUS

PDF

111.3 KB Created: 2020-08-08 21:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49c0fd4f1f090164cc3561ab86a4f6c0 SHA-1: c2711849e335039ae24970334eeebaa99ab52a05 SHA-256: e25445074be70eddfed6917f63c077e3177109e77381d9ab5f90c9348a8d49c0
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.com'. Additionally, another critical heuristic indicates a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The embedded URL in the document body also points to the same malicious redirector.

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=antibody+structure+pdf
    • http://files.taigelauren.com/uploads/1/3/0/7/130775102/6d4858.pdf
    • http://files.healingnotesllc.com/uploads/1/3/1/1/131164157/fikaninoterit.pdf
    • http://files.geneseevalleywindensemble.org/uploads/1/3/1/4/131453256/6869450.pdf
    • http://files.myanmarocean.org/uploads/1/3/1/4/131438829/kusilofivaliladi.pdf
    • http://files.hestercox.com/uploads/1/3/2/3/132302896/ruwaza-badofi-gatovutag.pdf
    • https://cdn.shopify.com/s/files/1/0439/9664/3486/files/81961707616.pdf
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/52232430199.pdf
    • https://cdn.shopify.com/s/files/1/0441/0481/0648/files/12461563517.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/92876231612.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0512/files/dimowula.pdf
    • https://cdn.shopify.com/s/files/1/0438/5875/5749/files/kekojok.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6208/files/windwalker_monk_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/dasivoparebelikubuwenizil.pdf
    • https://cdn.shopify.com/s/files/1/0428/6811/3574/files/codewarrior_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/fefapijag.pdf
    • https://cdn.shopify.com/s/files/1/0430/9493/3665/files/zojefeti.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/street_fighter_alpha_3_rom.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_off00016a02.bin
8dff5b94cb4ca9a6966a7baf3677145242d9339adf1d994bc88d0b9146f30bcc
pdf-font-stream PDF embedded font (sfnt) at offset 0x16A02 5020 bytes
font_01_sfnt_off00017b1f.bin
5c69b55f1b884e148e42a99df65b02e26bc685e3d926ed46ab0f2045dd7f8e35
pdf-font-stream PDF embedded font (sfnt) at offset 0x17B1F 11380 bytes
font_02_sfnt_off0001a17d.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1A17D 4324 bytes