Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1fd4c4c01f45be2…

MALICIOUS

PDF

101.3 KB Created: 2020-08-14 21:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0a7b5c56313966fa8300404fb3fa679 SHA-1: 5ec9f01ff12d4c4dd63d7ab97e90e14c3aa09225 SHA-256: c1fd4c4c01f45be2b66399cf5c84e4bee9e9375e463b2ce7f915db64d9e1e0a9
136 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This indicates the document is designed to lure users to a malicious site. The document body contains urgency language, further supporting the lure. The PDF also contains a large number of external links, many hosted on Shopify, which is likely an attempt to obscure the malicious redirector.

Heuristics 5

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=campaign+finance+reform+amendment
    • http://files.dkgalphalambda.com/uploads/1/3/0/7/130776073/3617839.pdf
    • http://files.districtsolutions.net/uploads/1/3/1/4/131452858/zalisuguwaji.pdf
    • http://jives.aponysparadiseequinerescue.org/uploads/1/3/0/8/130814017/tufekegipup_miladuxela_pivoturol.pdf
    • http://files.faithcheraw.org/uploads/1/3/2/6/132695472/nuwed.pdf
    • http://ketisame.tonyottenauthor.com/uploads/1/3/1/3/131383483/1174285.pdf
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/60507431438.pdf
    • https://cdn.shopify.com/s/files/1/0446/9909/1098/files/html_all_tags_bangla.pdf
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/51512006214.pdf
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/52325612902.pdf
    • https://cdn.shopify.com/s/files/1/0433/0301/0468/files/gokabaguk.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/kajipawiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/ribididu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/zopufudisepugepuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/cambridge_checkpoint_english_coursebook_9_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/98220722931.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/53285727398.pdf
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/canterbury_tales_the_miller_s_tale.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_off000152f8.bin
796333b6e3899c6b9e0ad4025bf9755b57f1dc4d7e67aabf4fb1b672ac59b63d
pdf-font-stream PDF embedded font (sfnt) at offset 0x152F8 5168 bytes
font_01_sfnt_off00016478.bin
605c6c43a488cfad02e2074b4a56c337e6203ed34367bf9ad8c4e1edaeba0676
pdf-font-stream PDF embedded font (sfnt) at offset 0x16478 10212 bytes