Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e121d2fb2f5e479…

MALICIOUS

PDF

43.7 KB Created: 2020-07-24 06:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 422d70a53b71dcc26d85fa1ff06d72a1 SHA-1: 312a59301137a4a332d31bd25b8b2befef39039a SHA-256: 8e121d2fb2f5e479b3b4f1387719565b4744a3915bce831f725702c4f4986027
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, suggests a lure related to a '10th marksheet loan process'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content. The primary malicious IOC is the redirector URL.

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=10th+marksheet+loan+process
    • http://files.jck9services.co.uk/uploads/1/3/1/4/131437626/xabazubasal_zabavawo.pdf
    • http://files.sherrykloster.com/uploads/1/3/2/6/132696174/2eaf50152d002.pdf
    • http://files.the-bookaneer.com/uploads/1/3/1/4/131437194/95b598116178.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80463449019.pdf
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/72475461001.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdf
    • https://cdn.shopify.com/s/files/1/0431/6050/2421/files/dodupototamanin.pdf
    • https://cdn.shopify.com/s/files/1/0430/8841/2836/files/jezasose.pdf
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/22354743997.pdf
    • https://cdn.shopify.com/s/files/1/0433/9109/0844/files/64215125527.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/xenamiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/60713697790.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_off000060ef.bin
77b2fcf5fd1201f6704e13f9cdca3212d5ca52114e9c900de64a17ec34cc32d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60EF 5076 bytes
font_01_sfnt_off000071f9.bin
8c3eb63b8b50c875931c5910235bd074f79f64698026e8e5e09361685457a34c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F9 14940 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.