Malicious PDF — malware analysis report

Static analysis result for SHA-256 df8888fe685d4009…

MALICIOUS

PDF

55.4 KB Created: 2020-07-21 21:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a5b75618c991b9dc6df44fd8aee762c SHA-1: 42b69e60b0c608c95293744af2c88cb12900c922 SHA-256: df8888fe685d40095b51b110aec98fd2b2fa24680e87432e0948f48606128201
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, with one identified as a malicious redirector and others forming a link farm. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that at least one URL points to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a large number of external links, likely to manipulate search engine results or distribute further malicious content. 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.com/pify?keyword=aliments+acides+et+basiques+pdf
    • http://files.myforgenetwork.com/uploads/1/3/2/6/132695388/mivonupojoxu_dazudizopisip_jofanuramap_tinesesapa.pdf
    • http://files.workrescuegear.com/uploads/1/3/1/6/131606035/zukegipufefuzedixusi.pdf
    • http://files.averykey.sg/uploads/1/3/1/0/131071253/b52d9095c.pdf
    • http://files.dos-beachwear.com/uploads/1/3/2/3/132302916/susovukipapu-vedadomivorepe-bopafenuresun-gapudoxufebuvi.pdf
    • http://files.dos-beachwear.com/uploads/1/3/2/3/132302916/susovukipapu-vedadomivorepe-bopafenuresun-gapudoxufebu
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/82871626678.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/gapazedogixaladikin.pdf
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/13770914606.pdf
    • https://bopametipez.files.wordpress.com/2020/06/50832980971.pdf
    • https://difofik.files.wordpress.com/2020/07/roginifibexovuganajamapi.pdf
    • https://rafivebexenu.files.wordpress.com/2020/07/moninok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/5324/3806/files/komiwopebonafawiz.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/92315108847.pdf
    • https://cdn.shopify.com/s/files/1/0438/7287/8747/files/demazipomi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/53700587003.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/36367088536.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4822/files/58010603619.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/19989875991.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_off00008c59.bin
144350b30378e91f5a66cd8945553bc3d6b9a6051bffe5ff4344b806e980b17d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C59 5232 bytes
font_01_sfnt_off00009e01.bin
db846d24eaecfa9737e80efda20200b87611530305b54edaf4a6c633c2f6d002
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E01 16552 bytes