Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad182527adb1b0a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 11:28:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc9fe0d8a25951d4b16b94aace02b4b8 SHA-1: bce8a860652b6fcb9b4c672794b26d90adf30cd6 SHA-256: 9ad182527adb1b0a814a9f3c3d40870c47232f30a235a66ebf3eed7724ec6437
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.cc', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the malicious URL and references to 'Kmart baby crib sheets', likely a lure. The presence of a callback phishing lure heuristic further supports the malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=kmart+baby+crib+sheets
    • http://files.kenplattner.com/uploads/1/3/2/8/132816066/rimodevi_nobito_sizefepavovijej_zawuromudagetiv.pdf
    • http://sutobim.miriad-tech.com/uploads/1/3/0/9/130969090/dotafelusal_pizazurolubura_xufin.pdf
    • https://cdn.shopify.com/s/files/1/0437/9312/1442/files/87649074015.pdf
    • https://cdn.shopify.com/s/files/1/0430/9513/0266/files/36513720442.pdf
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/tusiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/abakada_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/6941/5327/files/difference_android_oreo_and_pie.pdf
    • https://cdn.shopify.com/s/files/1/0429/6078/1475/files/csi_cyber_legacy.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/30609923076.pdf
    • https://cdn.shopify.com/s/files/1/0439/2783/0696/files/canterbury_tales_prioress_tale.pdf
    • https://cdn.shopify.com/s/files/1/0460/1305/5137/files/35880744144.pdf
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/rozonapakuve.pdf
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/tigofudesopovezefemasuvuz.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_off00006656.bin
346437348199c510adaa68e8847fb7112830239dca08808ac66dfac8a49283cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6656 5220 bytes
font_01_sfnt_off000077f5.bin
633774302b3b6bf8261bfb0b9ab16ac559585929c741c8def61313d2e6f29bc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77F5 10524 bytes

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