Malicious PDF — malware analysis report

Static analysis result for SHA-256 98e2f56eb607f651…

MALICIOUS

PDF

70.4 KB Created: 2020-08-20 03:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c74288796e3803e8b8cec57f6e5f73 SHA-1: 48cedabcb5fd41149367878fc5788d3024aafcc5 SHA-256: 98e2f56eb607f651f2f78097587726a1f33ac9203a5c4bb429fb2df0da4dc430
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bmth+sempiternal+full+album'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. No scripts were extracted, but the primary attack vector appears to be the malicious redirection.

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=bmth+sempiternal+full+album
    • http://files.clarksmithphotography.com/uploads/1/3/0/7/130776590/1080642.pdf
    • http://mokifapad.sewinggooddeeds.com/uploads/1/3/1/4/131437379/cee6880d4a8a04.pdf
    • http://timipes.fpelc.org/uploads/1/3/0/7/130775403/gijinaragi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0736/9639/files/fiforesimikukolobi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/93577716077.pdf
    • https://cdn.shopify.com/s/files/1/0432/4936/9252/files/fejudonowidepowuriperaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/64986039855.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/86931215628.pdf
    • https://cdn.shopify.com/s/files/1/0446/9984/4762/files/appalachian_trail_map_tennessee.pdf
    • https://cdn.shopify.com/s/files/1/0435/3707/2280/files/bewitched_bothered_and_bewildered_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1985/files/82039411882.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/rudefanakivitewemavatemi.pdf
    • https://cdn.shopify.com/s/files/1/0452/7046/6722/files/2299350232.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_off0000be5f.bin
92208642c363dcc4de8600ed41e8de61d9553280843e2715e1439fa03eb86b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE5F 4256 bytes
font_01_sfnt_off0000cd58.bin
d9adc1c563c90bd36fe6fc36261c326500fb838c991285c6485304a3764574eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD58 5328 bytes
font_02_sfnt_off0000df4a.bin
3bddedc34f3a90d7f678e3d2a56a657a5f62d19cba42b100d79e4e1d4b555e7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4A 14452 bytes

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