Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8471701b6e2afd3…

MALICIOUS

PDF

42.2 KB Created: 2020-08-26 17:05:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38d726a31e62ec918b9541c5e738a068 SHA-1: c1c1013bb3e1d2477142e7a481679dcc0124d030 SHA-256: b8471701b6e2afd31f96f3320e51df53bfb85c28879a4dc947808316d78655ae
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Mortal Kombat Shaolin Monks PS2 ISO ROMsmania' and includes a link to `ttraff.com`, which is flagged as malicious redirector infrastructure. The document also contains a large number of links to PDFs hosted on `cdn.shopify.com`, suggesting a link farm or SEO poisoning attempt. The presence of a visual download button further supports a social engineering lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=mortal+kombat+shaolin+monks+ps2+iso+romsmania
    • http://files.joannamozdzen.com/uploads/1/3/1/1/131164538/fimobivi-guzunofirudina.pdf
    • http://jotet.anandamargaofaustin.com/uploads/1/3/0/7/130738568/lepaburupovuxor_gabawi_lujedafo.pdf
    • http://mutep.lighttheearth.com/uploads/1/3/0/7/130776728/3f530680811a.pdf
    • http://guvefap.ndsportschannel.com/uploads/1/3/1/3/131379478/wusogepesifefe-timevijatefa-tilijipozoki-xiwawaxariduki.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vixegenosevisime.pdf
    • https://cdn.shopify.com/s/files/1/0448/0358/8258/files/chinese_characters_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/tavuro.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/vekadunipuvut.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4087/files/account_payable_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0441/2728/9496/files/84861321655.pdf
    • https://cdn.shopify.com/s/files/1/0433/6225/5006/files/kezin.pdf
    • https://cdn.shopify.com/s/files/1/0464/7183/9894/files/android_p_iran_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0448/6312/7714/files/calidad_definicion_segun_autores.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/66549663665.pdf
    • https://cdn.shopify.com/s/files/1/0435/9100/8418/files/blood_test_results_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/candy_making_process.pdf
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/rental_lease_agreement_free_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1030/files/39876835943.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_off000065ba.bin
74348c9d943d93c28ec44f2d6be84ce063ca3c3e50055f2506917dddf5c145b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BA 5400 bytes
font_01_sfnt_off000077f6.bin
c60cf4b73995e774dc96aa61f6b7675ab9ceb57ef32c00772e270256d5bdfd08
pdf-font-stream PDF embedded font (sfnt) at offset 0x77F6 10420 bytes