Malicious PDF — malware analysis report

Static analysis result for SHA-256 a973429a4760241f…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 23:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a8b6c68fc43ffb37afa0a66086d1e79 SHA-1: e06315920c81e417cf3eb93354f7808fbb545e03 SHA-256: a973429a4760241f42bb735c3791b90f803098bf6d9d2062e03b81c921a7dafc
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to host malicious content. One of the embedded URLs, 'https://ttraff.com/pify?keyword=mobil+atf+320+datasheet', is flagged as a malicious redirector. The document body appears to be garbled but contains references to the redirector URL, suggesting it is the primary malicious component.

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.com/pify?keyword=mobil+atf+320+datasheet
    • http://rodezaz.ssppwisrapids.org/uploads/1/3/1/4/131438216/nenepan.pdf
    • https://cdn.shopify.com/s/files/1/0434/0632/7959/files/tofukijedopan.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/17096996139.pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/37769007381.pdf
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/xufaluzaruzubegegegexes.pdf
    • https://cdn.shopify.com/s/files/1/0452/0719/1701/files/hex_cable_lugs_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/wuzirinefokobojutogitav.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/89946198086.pdf
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/jowuzufufafibira.pdf
    • https://cdn.shopify.com/s/files/1/0434/9673/4880/files/vowik.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/fevujobawasovovovesus.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/jodujojewezizajumeximuva.pdf
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/67729816563.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_off00005edc.bin
1e36c591075fbe10a23ce11f8a0c139ad750f9e297da18379787796424912a02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDC 5484 bytes
font_01_sfnt_off00007179.bin
0dd5f632c3ffb1135ed385247a3d6cee3ebbb523cf2f204e2be0a7029edbd102		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7179 14148 bytes

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