Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf2707c2a6bbb8e7…

MALICIOUS

PDF

44.6 KB Created: 2020-08-30 07:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ecbe1c7a5ba794e4c44e0bbd57ca64e SHA-1: 9c709ac2413c392e44035eacd44cef53230a8f3d SHA-256: bf2707c2a6bbb8e7c0b45cda82c0dfac67c42380c2a8c7ae0d468470ac986661
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=new+disney+alex+and+ani'. Additionally, it features a PDF link farm heuristic, indicating a large number of external links, with the first being 'https://cdn.shopify.com/s/files/1/0435/4398/6327/files/figuseduvewofifadinu.pdf'. The document body contains obfuscated text and the primary malicious URL, suggesting a lure to a malicious site.

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/wix?keyword=new+disney+alex+and+ani
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/figuseduvewofifadinu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2317/8656/files/bailey_love_s_short_practice_of_surgery_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/rifts_rpg_character_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46824776831.pdf
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/fujovisaxidamofazokazux.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e1947b7e04447b99c3da2920385052d.pdf
    • https://static.usrfiles.com/ugd/704566_fe9aa17e5fc94bb596c7215e1bb61962.pdf
    • https://static.usrfiles.com/ugd/b8c837_e62dca9eb4164cc580e4e8856dd25dcd.pdf
    • https://static.usrfiles.com/ugd/ce14f3_ee89082c2b6749e5aa49fba2e427a8a4.pdf
    • https://static.usrfiles.com/ugd/c5d40f_a9a77f32a11b460a98dce47900422cf7.pdf
    • https://static.usrfiles.com/ugd/b8c837_64ccf810d82c4e95b00fd7b0f7cf879f.pdf
    • https://static.usrfiles.com/ugd/4b68be_61febfc42e8648f598a471c11cb99e73.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ebabf572332487ba4a4f7712ca3cfcc.pdf
    • https://static.usrfiles.com/ugd/b8c837_8800f48600f345069d2bbca9e13aedf9.pdf
    • https://cdn.shopify.com/s/files/1/0435/1619/9064/files/wafalapafitotavuvepepem.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/vadokirazifux.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_off000066bf.bin
1c306fd4f5773114d8dd4e4babf68c91db4ef30dd3a5a08a6fed5d68a174da3a
pdf-font-stream PDF embedded font (sfnt) at offset 0x66BF 4952 bytes
font_01_sfnt_off000077c5.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
pdf-font-stream PDF embedded font (sfnt) at offset 0x77C5 1800 bytes
font_02_sfnt_off00008053.bin
6f971525c282d7e7a7a4381880bad66adf85dfe96cd932d8b081d1f754297ff5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8053 10832 bytes