Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f63b251fcebc80…

MALICIOUS

PDF

49.4 KB Created: 2020-08-02 21:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62ec811973f8187e3fa04ec316ea0052 SHA-1: 6a6b61e3748e765e5bbd1a5746943fba83f24466 SHA-256: c3f63b251fcebc80fb5daa852d190128327e024a883f98a791c8119ece0a9517
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated but contains a reference to the malicious URL. The primary purpose appears to be SEO manipulation or to lure users to malicious content via the numerous links.

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=fizzbuzz+solution+javascript
    • http://files.jeffcofiretraining.org/uploads/1/3/2/6/132681409/4110604.pdf
    • http://files.sacredplayplace.com/uploads/1/3/0/9/130969592/22062.pdf
    • http://files.roejendradesigns.com/uploads/1/3/1/4/131406762/wugagumigejo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/sikip.pdf
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/96425185684.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/21375917263.pdf
    • https://cdn.shopify.com/s/files/1/0433/5193/3078/files/tugudarebizorigalowit.pdf
    • https://cdn.shopify.com/s/files/1/0429/6274/7545/files/21480129312.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/rovevap.pdf
    • https://cdn.shopify.com/s/files/1/0435/5509/4679/files/walmart_410_shotguns.pdf
    • https://cdn.shopify.com/s/files/1/0429/3964/6108/files/kitubapapejew.pdf
    • https://cdn.shopify.com/s/files/1/0428/8164/6758/files/ap_nasus_build.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/9626986524.pdf
    • https://cdn.shopify.com/s/files/1/0435/3002/7157/files/sonef.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8890/files/22132637343.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_off00005e94.bin
29aa55493a396ecdbe19ee3b1fca2fe41422c4a5472571341ce820673f4e154b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E94 5208 bytes
font_01_sfnt_off00007069.bin
2d1c02d7faeb7dad5af5d103f135926a0d4fd4e69f3a7da8959d46cf8e88466d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 3120 bytes
font_02_sfnt_off00007cec.bin
59d90026a3ab1536ae557014de0ec1d4faca21058a6b55bc633918620499ba5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEC 10828 bytes
font_03_sfnt_off0000a1e7.bin
a399ce49593d3ce169bb62e31a9396850cb3d483ae32cdb622e87b7346cdbe00		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E7 16424 bytes

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