Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a6983458f23a37…

MALICIOUS

PDF

47.0 KB Created: 2020-09-01 11:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dc64d77822c959f18bf08a2c2e580b2 SHA-1: fc34658120f7a784e4a1f00e094bf04c2fedb03f SHA-256: 46a6983458f23a377a545ee00f8ba1abc591f8b8b54d8c8dbeb5e2a1a1695abb
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=reporting+accumulated+depreciation+on+balance+sheet', suggesting a lure related to financial reporting to entice users to click the malicious link. The presence of numerous other links hosted on cdn.shopify.com, while individually benign, contributes to the overall link farm characteristic.

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=reporting+accumulated+depreciation+on+balance+sheet
    • https://cdn.shopify.com/s/files/1/0433/8126/0438/files/91779540866.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5221/files/telapinulipuwuto.pdf
    • https://cdn.shopify.com/s/files/1/0465/4294/6454/files/python_spyder_auto_format_code.pdf
    • https://cdn.shopify.com/s/files/1/0464/6843/2040/files/37069833968.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/central_machinery_drill_press.pdf
    • https://static.usrfiles.com/ugd/913720_9b4aae2d96ff43618922d7c131953ecb.pdf
    • https://static.usrfiles.com/ugd/d2751c_0bb61f6edb3d419ab3b6c161d1f146c0.pdf
    • https://static.usrfiles.com/ugd/1fbf8b_3770e372446147a6929574bc22885c5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef5e09b7eced42b080408b2561c9aa22.pdf
    • https://static.usrfiles.com/ugd/455f95_6b736f988cf44ab9b86e4e56c54cb8f0.pdf
    • https://cdn.shopify.com/s/files/1/0431/3359/9893/files/bidvest_namibia_information_technology.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/54564440746.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdf
    • https://cdn.shopify.com/s/files/1/0444/0604/6886/files/gazelle_power_plus.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/akshara_haasan_song.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_e4659e7e9e334a038aced065903d0605.pdf
    • https://static.usrfiles.com/ugd/57c819_e134e6b0c1a04f8ebc82e0c1a0d31651.pdf
    • https://static.usrfiles.com/ugd/10e3af_100071eb8a584172b9597190757ad2d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_29e7b3aade4a4eb8bb125d60c744419c.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_off00006aef.bin
4ab8f6f8615ac6028d8753b836883e4696a505567c7fb7f560b21739c1a2b203
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 5516 bytes
font_01_sfnt_off00007d7b.bin
a94b2b1ecfcecae0e80d7d8431fc527f7693dce2ccab9caa5d9bc04497760289
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7B 10164 bytes
font_02_sfnt_off0000a04a.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA04A 4324 bytes