Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb01e3d5a67225a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-13 05:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ef37406baac1001735e73e54688ce45 SHA-1: 5e5580e68e803012f5ff76a69a112d8798c33801 SHA-256: 3cb01e3d5a67225af5790124aee122e2bb15c7f4f71d690321ca81fc3d0ceb42
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links directs to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body text, while partially corrupted, includes the search query "All quran bangla translation pdf", likely used as a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.ru/pify?keyword=all+quran+bangla+translation+pdf
    • http://files.keyboardmelodiesforseniors.com/uploads/1/3/2/6/132681495/7125080.pdf
    • http://files.est-spray.com/uploads/1/3/2/6/132681863/ce819045.pdf
    • http://files.theblackpearlnailacademy.com/uploads/1/3/0/7/130775490/gakire-nupovoligu-gaposofedub-giwubava.pdf
    • http://files.premiergoldendoodles.net/uploads/1/3/0/8/130814126/gujow-wanim.pdf
    • http://files.quiltsbyj.com/uploads/1/3/0/9/130969238/73756.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44329390643.pdf
    • https://cdn.shopify.com/s/files/1/0439/2927/2488/files/nabefolunoguzizob.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdf
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/gobimulutojen.pdf
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/gujaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/60109643577.pdf
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/devunosipus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0831/0943/files/77351219675.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/6614086362.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4711/files/firenizizulafuduxefusen.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/59274079912.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c45.bin
9c5c1ef38deb9d7d1a7061fddb8b3346c5201c1d6579248026d4bc2b15baac5d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C45 5228 bytes
font_01_sfnt_off00005dfb.bin
188c087d9b13e87a23a893b1c02b3448c5511c49ba09ed5af92f7f160e36c556
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFB 9924 bytes
font_02_sfnt_off00007fd5.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD5 4324 bytes