Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b0951b82069f52c…

MALICIOUS

PDF

112.2 KB Created: 2020-08-13 00:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1aa99381ba181d7cf8170e5f476158e7 SHA-1: c99378bee852342512ff0ce0ba39106df310c024 SHA-256: 1b0951b82069f52c0f65f1d6d6191d6b099c8cc8283f78444362b6cbe0b0efb1
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm, with numerous links hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, contains the same URL as the redirector. The primary attack pattern involves luring users through these links to a potentially malicious destination.

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.
  • 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.com/pify?keyword=beauty+and+the+beast+musical+full+script+pdf
    • http://files.cdopsrnc.com/uploads/1/3/2/7/132740458/tinabip.pdf
    • http://sedoji.desertjade68.com/uploads/1/3/0/7/130776485/waduj.pdf
    • http://files.nottinghammassage.com/uploads/1/3/0/9/130970009/vefefimow_bitijufo.pdf
    • http://files.mrtempeh.com.au/uploads/1/3/1/6/131637362/ditef.pdf
    • https://cdn.shopify.com/s/files/1/0437/7729/4485/files/2016_ford_edge_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/fopexoviludaso.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9621/files/71160964370.pdf
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/get_all_tweets_from_a_user.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7033/files/intangible_assets_accounting.pdf
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/45632045535.pdf
    • https://cdn.shopify.com/s/files/1/0433/9741/5077/files/11337472842.pdf
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/88516698435.pdf
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/61699105536.pdf
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/mowukeniwovulevufozovet.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/91536806268.pdf
    • https://cdn.shopify.com/s/files/1/0433/0802/3966/files/bankruptcy_act_usa.pdf
    • https://cdn.shopify.com/s/files/1/0436/3183/7344/files/jigapuraguzuka.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_off00017b61.bin
c11a2d6ae0cfe99326b2cf0e1bbea15c6b3d344746919804e70ccea5ab8c0b11
pdf-font-stream PDF embedded font (sfnt) at offset 0x17B61 5688 bytes
font_01_sfnt_off00018e8c.bin
23289afde3363b565334d237ecb30041e2ef3ecfcc9cd649da63e9683fa304ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x18E8C 10760 bytes