Malicious PDF — malware analysis report

Static analysis result for SHA-256 845cc33236467bf4…

MALICIOUS

PDF

71.2 KB Created: 2020-08-21 19:28:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4402a93c593373576e96f2cc6ca6b060 SHA-1: babcabe36a7f979fb1fa028ff6190a5b81352608 SHA-256: 845cc33236467bf4420e885e670295c0fb39a19dd856fed72dce4a107c72cbaa
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.ru/pify?keyword=bengal+tiger+tamil+movie++in+tamilrockers' is the primary indicator of this malicious intent. The document body, though heavily obfuscated, appears to contain the same lure text, suggesting a social engineering tactic to entice users to click the malicious link. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning attempt to improve search engine ranking for the malicious content.

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.ru/pify?keyword=bengal+tiger+tamil+movie++in+tamilrockers
    • http://files.mylifeinchange.com/uploads/1/3/1/4/131482819/2880625.pdf
    • http://mivedotu.scenesofvirtue.com/uploads/1/3/2/8/132815806/3824681.pdf
    • http://files.metzking.com/uploads/1/3/0/7/130776589/4f6e0d794209c.pdf
    • http://files.missionboostconsulting.com/uploads/1/3/0/8/130874307/53a04defa6.pdf
    • https://cdn.shopify.com/s/files/1/0437/4301/9159/files/mnemonica_book.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/49938011028.pdf
    • https://cdn.shopify.com/s/files/1/0436/7840/0662/files/my_cbse_guide_class_6.pdf
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/46490363271.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1264/files/addition_of_hexadecimal_numbers.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/zibaretis.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/63377595354.pdf
    • https://cdn.shopify.com/s/files/1/0429/1539/7788/files/vanilla_wow_leveling_guide_addon.pdf
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/ethyl_chloroformate_msds_science_lab.pdf
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/pdf_bestanden_samenvoegen_mac.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/acca_f8_course_notes.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3674/files/86488437590.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
font_00_sfnt_off0000ad8f.bin
bca5fd00b01df9b5b7e523dad49602aa59c2fbc33aacc40f66545134b9952543
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD8F 5292 bytes
font_01_sfnt_off0000bf7f.bin
80e761b986a97bdad70db811b7da1e5720adfa89747bb3e25a11124e3740bf9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF7F 6568 bytes
font_02_sfnt_off0000d472.bin
b5d32685ce2f98277767b7639336f5ffda5d9e91f845a9251ca3d1b0f1cf0792
pdf-font-stream PDF embedded font (sfnt) at offset 0xD472 10664 bytes
font_03_sfnt_off0000f92d.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
pdf-font-stream PDF embedded font (sfnt) at offset 0xF92D 16164 bytes