Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4d7d079f30375a3…

MALICIOUS

PDF

45.5 KB Created: 2020-09-02 13:22:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa19df5d33b3e38e5a00ab5cd5b53b83 SHA-1: 57ae9dc1c71897f2c0022423de2a92b55492f1c0 SHA-256: b4d7d079f30375a355e3531c1face911cb484b33f31797f4817684c6f831e414
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a guide, which is a common lure for phishing or malware delivery. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the malicious nature of the primary URL. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates the PDF is part of a larger scheme to generate traffic, likely for malicious purposes. The document body contains garbled text but includes the malicious URL and benign-looking PDF links.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/pify?keyword=the+name%2527+s+lavasioth+guide
    • https://static.usrfiles.com/ugd/b8c837_c03b92a567b24e02867ff4b7cdb0cf4c.pdf
    • https://static.usrfiles.com/ugd/455f95_734d624aa79849cea4a56e28d9f16dda.pdf
    • https://static.usrfiles.com/ugd/370ea2_fa86bc36b3ba4a708ce8f9f88242a524.pdf
    • https://static.usrfiles.com/ugd/18f527_13a6902af08440438d8bb492465e6914.pdf
    • https://static.usrfiles.com/ugd/b8c837_946623de2c8d4ae1bfa3c9e658859ce4.pdf
    • https://static.usrfiles.com/ugd/338562_2cb2620c8f5e49abb8a95c1beb185e73.pdf
    • https://static.usrfiles.com/ugd/f65518_89c18fd3dea846c98668db3f4fade7b0.pdf
    • https://static.usrfiles.com/ugd/61f964_17642c1de9db470f9028905cd284766f.pdf
    • https://static.usrfiles.com/ugd/e2f197_d5ebe4f3737e4637b20e976afb279d12.pdf
    • https://static.usrfiles.com/ugd/804ff6_5eda45beb2db4b2c90b6c75857cc8502.pdf
    • https://static.usrfiles.com/ugd/73c254_e589c83fe7cb4f908298fa1b5692329f.pdf
    • https://static.usrfiles.com/ugd/b8c837_34adb5eaa6b245c2b452b7330120860a.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_d657a7ae5f034608a80f14300f090e58.pdf
    • https://static.usrfiles.com/ugd/5e81b9_f10b0eab1d56417288054af777105646.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_bb15b9de07a44b0c993f9a0f5afee0d1.pdf
    • https://static.usrfiles.com/ugd/ee9d3f_a9992d62e0264d94a50a465e00315a1b.pdf
    • https://imgur.com/8nue8ov
    • 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_off00007377.bin
c9acb1394dde8468db0da8343d37ac74e1c4ef1a5eee3be095f495af73291538
pdf-font-stream PDF embedded font (sfnt) at offset 0x7377 5184 bytes
font_01_sfnt_off00008504.bin
49c416797b148fb361ca0214a2530338f785bd2863b97eb5506e76000722b613
pdf-font-stream PDF embedded font (sfnt) at offset 0x8504 10532 bytes