Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf8becee3d1cf1ca…

MALICIOUS

PDF

44.1 KB Created: 2020-08-08 14:22:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a78c2985e4339a9a3bedd7b8ab3f0d5 SHA-1: 5beac0d8d04a8710f2e855255da83a58404d4a9e SHA-256: cf8becee3d1cf1ca723f8a2b38630519fdd082a7b6a6175204401bcf969b54c3
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at https://ttraff.ru/pify?keyword=enga+karuppasamy+song+lyrics+pdf. The document body, though partially corrupted, suggests a lure related to song lyrics, aiming to trick users into clicking the malicious link. The presence of multiple Shopify URLs, some flagged as benign and others unknown, indicates a potential attempt to blend malicious links with seemingly legitimate ones.

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.ru/pify?keyword=enga+karuppasamy+song+lyrics+pdf
    • http://files.irishsodablog.com/uploads/1/3/1/6/131636990/7654960.pdf
    • http://files.duikinstructeur-thailand.nl/uploads/1/3/1/4/131483143/e44c689190f534.pdf
    • http://files.neuralmechanisms.org/uploads/1/3/1/3/131383743/xenojulufibul_redexitizu_kapususogafat_selus.pdf
    • http://files.thepatriotoutpost.net/uploads/1/3/1/3/131380456/xivegasubogobi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4996/5978/files/96094072483.pdf
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/pdf_to_word_converter_download_adobe.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/kisunagesuwobibewezofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4937/0268/files/mapibetinufuvipu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5008/2202/files/82076917878.pdf
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/zomupokixozalakumexobezak.pdf
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/kobamavuwuxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/65582660885.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42386580717.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.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
stream_004_off00005ffe.bin
e9bafef57a2944fee63c9b8e57bf94fad3e0a899052b50a675d69ab7eefe2b0c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5FFE 10940 bytes
font_00_sfnt_off00004cf0.bin
fe6dee339ab424d1bd5b3e0f5a18609305f9d814915040959be698205425b1ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF0 5600 bytes
font_02_sfnt_off00007b64.bin
a6734fbda2bbc8fe9cc5763aa82824629658356c54226b5fa9be08a96a20b152		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B64 12668 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.