Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10bfbb5d0481530…

MALICIOUS

PDF

55.6 KB Created: 2020-08-07 06:58:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adf1047c880283b46420f889638b7022 SHA-1: 1b61a86cdfdfbae1ffb1175ccd9a9b58e3604ba3 SHA-256: c10bfbb5d0481530bf35ef4581ea58f8e7333898a95b35a7733e9389f892b320
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on 'cdn.shopify.com' and other domains, suggesting a coordinated effort to distribute malicious content. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The presence of multiple PDF links and a redirector indicates a likely phishing or malware distribution attempt.

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.com/pify?keyword=pan+africanism+in+south+africa+pdf
    • http://files.factsorfictions.com/uploads/1/3/0/7/130775868/lefixepitupal_zunejojujoro_desor_tevabamupu.pdf
    • http://files.bluenosewoodworks.com/uploads/1/3/2/8/132815961/somokirolurujewikusi.pdf
    • http://files.crearewellness.com/uploads/1/3/1/4/131407802/muwakafefoneru_suvatid.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/vamidivefowuruwev.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/fasezolobifejezomubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1560/files/xobiwadumivotuvor.pdf
    • https://cdn.shopify.com/s/files/1/0440/0129/6534/files/sotekipugidafoguvemus.pdf
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/ritezenowuwibawunizuwarol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/fepakadenak.pdf
    • https://cdn.shopify.com/s/files/1/0428/1961/6935/files/93858229941.pdf
    • https://cdn.shopify.com/s/files/1/0440/6670/1477/files/3198996838.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1518/files/74420547350.pdf
    • https://cdn.shopify.com/s/files/1/0432/6385/2708/files/21617721958.pdf
    • https://cdn.shopify.com/s/files/1/0429/1228/4831/files/pokemon_yellow_cheat_codes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/turn_off_autocomplete_html.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3414/files/98917932735.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/50779440502.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
stream_006_off0000b45a.bin
b637cdbc197635524aa469825c8d05eddb6f9acb90e3900cddce93c2a4029380		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB45A 8624 bytes
font_00_sfnt_off00006835.bin
b3521da1088dbb1895d45fa06e88d661256fbe32963af947804111f4371d7ce5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6835 5364 bytes
font_01_sfnt_off00007a45.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A45 1800 bytes
font_02_sfnt_off000082d3.bin
6e6b83a0a66b76a2c3b6267353c354b727dbfc6e7729b6e9fcd0746b1e662d9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82D3 15828 bytes

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