Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ca9ced8245733a…

MALICIOUS

PDF

86.8 KB Created: 2020-08-05 00:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fab3d8e30c45c4eea3079d4b20d2b61 SHA-1: 184e4324fae094a608a366090d27009eed5e4d16 SHA-256: b6ca9ced8245733a285ffde150762befce9f3c3844f083c16c4400f6e5371739
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one specifically pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=botulism+symptoms+pdf'. This redirector likely leads to a malicious payload or phishing page. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The presence of a link farm suggests an attempt to game search engine results for malicious distribution.

Heuristics 3

  • 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 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=botulism+symptoms+pdf
    • http://files.newtonblades.com/uploads/1/3/1/0/131069781/fabewopajino.pdf
    • http://files.amitybrusharborchurch.com/uploads/1/3/1/4/131452799/wafup.pdf
    • http://files.profiledesigntooling.co.uk/uploads/1/3/2/6/132681479/5027124.pdf
    • http://files.bethlehemmbc.com/uploads/1/3/1/3/131380598/3edac810bb1954.pdf
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/pimajugegesusajogodafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/75821477614.pdf
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/74250130405.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/lupaniguferakuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/69388002358.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1829/files/vuvabena.pdf
    • https://cdn.shopify.com/s/files/1/0435/3946/4341/files/60384995341.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/48862591171.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/xunopuwalinuba.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/jevivunafeguzosuvepekog.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9803/files/simulador_ser_bachiller_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/f_critical_value_table.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/divulofuzasosukamadifen.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_off00011700.bin
222c71090b6a0a9fbadb5fb629575151d84c413c8030700c2a85bb8f6c98818b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11700 5032 bytes
font_01_sfnt_off00012824.bin
4187222f1a5866d7a2ea85c053623497f80abb97e9d5a4f0b599950777140145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12824 11324 bytes

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