Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ffc868094f86907…

MALICIOUS

PDF

37.4 KB Created: 2020-08-30 11:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76df9f754c890d343a11c9d9e78eef53 SHA-1: 19eeeec7eef347e311435990185cb079b8028883 SHA-256: 1ffc868094f86907d704f1165f44e1f3555d106cc1bdd8b420f62d2daad7a3b6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious site. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm, with numerous external PDF links. The primary malicious URL identified is https://ttraff.ru/wix?keyword=sidi+crossfire+2+replacement+parts, which is likely used to redirect users to a malicious payload. The document body contains obfuscated text and the malicious URL.

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/wix?keyword=sidi+crossfire+2+replacement+parts
    • https://cdn.shopify.com/s/files/1/0438/8156/2280/files/lajawopivugipogat.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/wusupovuzesovol.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/gojinifaxarefizivuvi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7349/4430/files/uneb_chemistry_past_papers.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/cuento_almohadon_de_plumas.pdf
    • https://cdn.shopify.com/s/files/1/0440/4061/8134/files/ludzie_bezdomni_lektura_z_opracowaniem.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/pukipadesaduzepuzuvum.pdf
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/oxford_english_dictionary_full.pdf
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/9077784252.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/nutonoxudinixakoxojemuvex.pdf
    • https://static.usrfiles.com/ugd/314c35_7370baa0eb554d5490dacb94dfae29c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4331bf6850348ae97cdea7eee0664fe.pdf
    • https://static.usrfiles.com/ugd/be19e1_0ab268c023ce4d8e83a6cef34922dab1.pdf
    • https://static.usrfiles.com/ugd/4b874d_dd212a9aa4424815a9be78a1f78d8736.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/80038576753.pdf
    • https://cdn.shopify.com/s/files/1/0432/1237/4174/files/arjun_patiala_video_songs_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/66688440212.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/jovawiba.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005139.bin
1cab93e4d1bd6ecee216b44fe3d5d2ac71f094b2b01d61ed73b4645c4cd4c670
pdf-font-stream PDF embedded font (sfnt) at offset 0x5139 5536 bytes
font_01_sfnt_off000063f4.bin
18d615b1ce7f38b740d768b7252fb8985ef1fe6aa6ac47b554a5cbe5cf990a2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x63F4 10992 bytes