Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d80d70e192d0c03…

MALICIOUS

PDF

47.0 KB Created: 2020-08-18 22:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d42a7f8885c841ad6099c14c46fb1c5 SHA-1: 9f98d0721ff3d1b670dd33843dc9017f0c20e918 SHA-256: 1d80d70e192d0c03958a18ea7b6564cc8862432e00335e8203871b3a0f85a243
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.cc. The document body, though heavily obfuscated, contains the text 'Guidewire testing tutorial' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a malicious redirector indicates an attempt to lead the user to a compromised site or phishing page.

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=guidewire+testing+tutorial
    • http://files.bmjigs.com/uploads/1/3/2/3/132302995/mugiba_zabokak_mujukatupa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0813/0200/files/exemple_de_brevet_d_invention.pdf
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/bunigetexizakumorukop.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/baha_u_llah_and_the_new_era.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/game_of_thrones_torrent_magnet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/91380270623.pdf
    • https://cdn.shopify.com/s/files/1/0431/8517/6736/files/mastering_swing_trading.pdf
    • https://cdn.shopify.com/s/files/1/0434/9594/8454/files/33049214352.pdf
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/dilekovarobuxokuros.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/97636390515.pdf
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/selenium_facebook_comment.pdf
    • https://cdn.shopify.com/s/files/1/0433/9954/4984/files/73891359376.pdf
    • https://cdn.shopify.com/s/files/1/0430/6488/5402/files/wogezifuwiwo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5385/9494/files/branson_3510_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7175/files/paralutuloditezosojosoma.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_off00006bda.bin
000d7ae05d44ed2df996980f46c38c6854b4fe37add00dd246422d28b9ce9a8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDA 5000 bytes
font_01_sfnt_off00007cf5.bin
f6877e841bc2a01a2784020fb0b924bfe6b26e521880da7610d5576cebb18d56
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 10516 bytes
font_02_sfnt_off0000a0b4.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B4 4324 bytes