Malicious PDF — malware analysis report

Static analysis result for SHA-256 d701a50f8b092af3…

MALICIOUS

PDF

49.7 KB Created: 2020-08-31 19:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe6e77fa4c0b6b2cb0fde2792efe8127 SHA-1: e1881f597887ca0f1b581a871fde51b9ce279721 SHA-256: d701a50f8b092af33e4106546841be60c9c5cb918c55ae3aa0e1495f9ee5b424
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=emulator+android+ringan+di+ubuntu', which is likely intended to trick users into clicking it. The presence of a PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger effort to generate traffic through SEO manipulation.

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=emulator+android+ringan+di+ubuntu
    • https://static.usrfiles.com/ugd/23b571_3132d0febd8546d58866a53f03e2bc54.pdf
    • https://static.usrfiles.com/ugd/225520_3fd6ab8c880d4b59b57c11ccbc881508.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_089de0baf22a4f52bdac0182d1c09094.pdf
    • https://static.usrfiles.com/ugd/b8c837_8432177643f44956bbf81b136dba065b.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/wixevegixexo.pdf
    • https://cdn.shopify.com/s/files/1/0437/2774/9274/files/aao_raja_full_hd_song_1080p.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/medical_laboratory_technology_mukherjee.pdf
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/independent_t_test_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/19488572912.pdf
    • https://static.usrfiles.com/ugd/906e9f_2cdfa130a4a54120a9392900ec07be92.pdf
    • https://static.usrfiles.com/ugd/b8c837_f45e0c67bf6d4144944e76151606cdb0.pdf
    • https://static.usrfiles.com/ugd/122077_02b2c384c5fb4b3692a6355d16fa5aae.pdf
    • https://static.usrfiles.com/ugd/136d07_58ed37f92fa9484f9e840ea32580c916.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/8790738405.pdf
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/74255099275.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/dowekejuwagojibapebuzikul.pdf
    • https://cdn.shopify.com/s/files/1/0432/5199/0691/files/da_form_1970.pdf
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/rojugabeja.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_off00007b36.bin
8c32ed55997a1b03afcdf36b7c1f719a45c6aeebaccae7696b288d04f5445592
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B36 5064 bytes
font_01_sfnt_off00008c4b.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4B 1800 bytes
font_02_sfnt_off000094d8.bin
6db71b51e941af6c9417c14ee3fbc19bda527201d9e0e556d963e8919917d7e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x94D8 11220 bytes