Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2affb59d49f0206…

MALICIOUS

PDF

43.8 KB Created: 2020-08-11 09:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a54614f318d3378281b21d714f49fcd SHA-1: dfb832594e08e379814fe7eab20007a03489284d SHA-256: d2affb59d49f02063ed23a08bf635848043999ecc059e1945081c9196e25190d
136 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'rule 96a of cgst rules 2020 pdf' and includes a URL that appears to be part of a link farm. This suggests a social engineering attempt to trick users into clicking malicious links, likely leading to further compromise. The presence of a malicious redirector and a link farm indicates a phishing or malware distribution attempt.

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=rule+96a+of+cgst+rules+2020+pdf
    • http://dokibamis.royaltyriseproductions.com/uploads/1/3/2/6/132681501/kodirotonoga.pdf
    • http://files.kenjorgensendesigns.com/uploads/1/3/1/4/131453062/6974291.pdf
    • http://files.gretchendriscoll.com/uploads/1/3/2/7/132740951/1b04c.pdf
    • http://gigimuda.emmanuelcoshocton.org/uploads/1/3/0/7/130775432/wojegoxakobewom.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/palunarezokomenega.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/wwe_raw_11_9_15.pdf
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/19992262906.pdf
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/leo_l._beranek_acoustics.pdf
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/jabowubizebadaruzejojewob.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/65132426061.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
    • https://cdn.shopify.com/s/files/1/0437/6425/2826/files/23740538642.pdf
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/89941809453.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5957/files/13778107026.pdf
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/froot_loops_font.pdf
    • https://cdn.shopify.com/s/files/1/0447/7186/8821/files/gakisevu.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_off00006b1e.bin
d34a01613d6e4e3afd642c87f5a962274b5530f543c4d4e168100fb6cd9d51ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1E 5912 bytes
font_01_sfnt_off00007f49.bin
187766a951858050599d859a5b5aebae2058e0738ad6be3e800b5c421946e3dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F49 10360 bytes