Malicious PDF — malware analysis report

Static analysis result for SHA-256 542ec72ea78b259a…

MALICIOUS

PDF

35.4 KB Created: 2020-08-25 03:04:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63060cb89de9630d4351183308c6bd59 SHA-1: 793f95726f108e608a17bc928312c71945388536 SHA-256: 542ec72ea78b259adccfe62d7a7ec413bfbdd6b60698b72d43e0fdee3d160e5c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify but point to a redirector. The primary malicious link, 'https://ttraff.cc/pify?keyword=casio+edifice+ef+539+dy+manual', is presented as a manual for a Casio watch, indicating a social engineering lure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the redirector's malicious nature. 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=casio+edifice+ef+539+dy+manual
    • http://bexewigaj.rocktownrallies.org/uploads/1/3/2/7/132741024/sotarud.pdf
    • http://files.blbfilmproductions.com/uploads/1/3/1/4/131453539/totib_pejikim_biwegekemek_ritirelo.pdf
    • http://files.wellnesspartnersgroup.com/uploads/1/3/1/8/131856105/xujozugeva-lerat.pdf
    • http://files.renewalskinandbody.com/uploads/1/3/1/3/131382239/5475788.pdf
    • https://cdn.shopify.com/s/files/1/0437/6212/2903/files/janopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6086/2882/files/79577219223.pdf
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/jowozadebapop.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/javano.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/11009004276.pdf
    • https://cdn.shopify.com/s/files/1/0462/8135/9520/files/48193718159.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/rizininefoximagepajujiruz.pdf
    • https://cdn.shopify.com/s/files/1/0459/8867/5751/files/buropinisofekefujomefir.pdf
    • https://cdn.shopify.com/s/files/1/0434/1458/5509/files/44331541166.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004006.bin
70fe331a7592891c4f0745055a77aebb35599d1252009f0ea28e5539cbf3105c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4006 5440 bytes
font_01_sfnt_off00005272.bin
fcec3c47f61517d15877bd2fae607af2d425c2d7f646e48a9e54f427b8d01ec5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5272 9508 bytes
font_02_sfnt_off000072f9.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F9 4324 bytes

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