Malicious PDF — malware analysis report

Static analysis result for SHA-256 314535b6166b9565…

MALICIOUS

PDF

49.2 KB Created: 2020-08-11 16:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 559b41ae5ca25f940e39dc0af94a56ba SHA-1: 72f74d2956aa0321d91fa78db092cd6ff5c45110 SHA-256: 314535b6166b95650c8cda1378497776e8686798c99203dba1a486eafa9ab10c
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 it as a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=frame+relay+pdf+free+download', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure for users seeking free downloads. The presence of multiple external links, including benign ones, is characteristic of SEO spam or link farm techniques used to mask malicious activity.

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=frame+relay+pdf+free+download
    • http://files.explorepickens.com/uploads/1/3/1/3/131379382/nedavafogizubo.pdf
    • http://files.shilohrussellville.org/uploads/1/3/2/6/132682883/xuselabusaluvo_sujevozopezaba_ribewawesiwaba_mubasetu.pdf
    • http://files.sippicanchoralsociety.org/uploads/1/3/0/7/130739375/840a4e.pdf
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/games_workshop_warcry.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/mexesede.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/risuzojidonuxigobitit.pdf
    • https://cdn.shopify.com/s/files/1/0437/1798/4410/files/because_of_your_love_chords.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodujanizovu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/application_of_computer_animation.pdf
    • https://cdn.shopify.com/s/files/1/0435/6702/2239/files/7798353950.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/9635988012.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/84926254455.pdf
    • https://cdn.shopify.com/s/files/1/0434/8788/7526/files/anandamela_archive.pdf
    • https://cdn.shopify.com/s/files/1/0438/5472/5270/files/57983611607.pdf
    • https://cdn.shopify.com/s/files/1/0433/5625/8454/files/sabojomagigel.pdf
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/xodulerusumovifa.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_off000069a8.bin
5c88b1ad044fea5fecf1e53b48739b530117b4cdcc93f69637aaca5cae635cf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x69A8 4816 bytes
font_01_sfnt_off00007a01.bin
4d1687a66619825ead5eb9d0b60141be588a9bac6e368e1e65f19bdf2d94b34f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A01 15312 bytes
font_02_sfnt_off0000a9a1.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A1 4324 bytes