Malicious PDF — malware analysis report

Static analysis result for SHA-256 59fb9c0f761afb53…

MALICIOUS

PDF

59.7 KB Created: 2020-08-14 09:38:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43138dc1284c5734503a8de0a04d82c3 SHA-1: 3a0a92c0c9a4eed49c3e17d0fffd0ec7ef2dfb4f SHA-256: 59fb9c0f761afb53dbbc8491234e0f255e7ac9aaeb16cddcd361b1cf8f16af0a
120 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Bitlife ribbons' and includes a link to a redirector service. This redirector is configured to lead users to potentially malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The PDF also contains a large number of external links, suggesting a link farm for SEO manipulation or distribution, as flagged by 'PDF_SEO_LINK_FARM'. 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.cc/pify?keyword=bitlife+ribbons+guide
    • http://files.sergedesroches.com/uploads/1/3/2/3/132302810/vaxap.pdf
    • http://files.hartfeltservices.com/uploads/1/3/1/8/131871729/nofupozisadazodadok.pdf
    • http://jitefir.acupunctureandnaturopathicclinic.com/uploads/1/3/0/8/130814328/fonufiwuwoluz_jezikefi_kobaxu_mavel.pdf
    • https://cdn.shopify.com/s/files/1/0433/5104/8357/files/65119548045.pdf
    • https://cdn.shopify.com/s/files/1/0433/8148/9813/files/scissor_jack_design_parts.pdf
    • https://cdn.shopify.com/s/files/1/0430/8221/9674/files/area_of_circles_and_sectors_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/tipijopumimidalelutole.pdf
    • https://cdn.shopify.com/s/files/1/0434/5239/9777/files/existentialisme_camus.pdf
    • https://cdn.shopify.com/s/files/1/0437/8954/9726/files/92387838214.pdf
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/52623015005.pdf
    • https://cdn.shopify.com/s/files/1/0428/5402/3327/files/xikadiwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5377/files/94380135300.pdf
    • https://cdn.shopify.com/s/files/1/0440/3573/5717/files/tabela_aliquota_icms_interestadual_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/68168872676.pdf
    • https://cdn.shopify.com/s/files/1/0430/8615/1834/files/31815303953.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_off0000ac76.bin
bc829602f73ddf028ee2004c2c7847ba640b174fee41a5f74aa24eba4b79cd54		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC76 5052 bytes
font_01_sfnt_off0000bdb3.bin
fb89462aa610724f4e0d81b9bfbbeb286f806f2864d208c24a24658eab631bc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB3 10536 bytes

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