Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bc583e40dcd4fa3…

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 18:22:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68feaac6f7cfd80d84dc72bc6d6fb0bd SHA-1: 30fa90b1b6ccc710449e36ed7933c62bfc4e040e SHA-256: 4bc583e40dcd4fa3791b8c1302ab1cf4cef0146f145a0c2c278de424f067aa4e
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'factory reset android tablet through pc' and the malicious URL 'https://ttraff.com/pify?keyword=factory+reset+android+tablet+through+pc', suggesting the lure is to trick users into visiting a site that likely hosts further malicious content or exploits. The presence of numerous external PDF links further supports the link farm heuristic.

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=factory+reset+android+tablet+through+pc
    • http://files.mrgarciaswebsite.com/uploads/1/3/1/0/131070072/7927096.pdf
    • http://bajunoti.joshuahettwer.com/uploads/1/3/1/3/131379179/fidixetujewa.pdf
    • http://files.antiquecameogallery.com/uploads/1/3/1/4/131437515/5d5b841.pdf
    • http://koriwudi.abellcable.com/uploads/1/3/2/8/132815806/4180883.pdf
    • http://wimijika.trebamstyle.com/uploads/1/3/1/3/131379395/4978572.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/57575255416.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/37728403405.pdf
    • https://cdn.shopify.com/s/files/1/0435/5365/2895/files/microsoft_sql_server_management_studio_2020_r2_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/le_spleen_de_paris_baudelaire.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/kapipotugosewezibudigiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/furifevulajegekotek.pdf
    • https://cdn.shopify.com/s/files/1/0443/1472/2460/files/artificial_intelligence_course_notes.pdf
    • https://cdn.shopify.com/s/files/1/0438/5092/4182/files/87631551128.pdf
    • https://cdn.shopify.com/s/files/1/0436/4589/4816/files/xenajulufojaga.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/29941165298.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1196/files/75331120225.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7900/files/nowodexadolob.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_off00006a53.bin
40b3860737e3fa1d15bea639db97c8d38da267a24f475dddaac065df9c932261
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A53 5532 bytes
font_01_sfnt_off00007d16.bin
37e732a5f3bae9203dc34fb631aadbd9f8330ac03b6e2f689631b958d077527c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D16 10060 bytes