Malicious PDF — malware analysis report

Static analysis result for SHA-256 234be0502c0cff84…

MALICIOUS

PDF

53.4 KB Created: 2020-09-05 08:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d581836d0907c88cd87356e7f9d4f91 SHA-1: a98c59e8e705fa7ca1d89f2f117cef08f3608fec SHA-256: 234be0502c0cff841e01154eff1e4658dba0fee5ab01ed735951b29125a6a7c1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=trekz+air+user+manual'. The document body, though heavily obfuscated, appears to contain the same URL. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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.club/wix?keyword=trekz+air+user+manual
    • https://static.usrf
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/cell_organelles_and_their_functions_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/rodigirajir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdf
    • https://cdn.shopify.com/s/files/1/0432/4920/5405/files/lajuwedanivugiw.pdf
    • https://static.usrfiles.com/ugd/b6aaa0_b33ae0f8b9744bc78176f29b26dc76e2.pdf
    • https://static.usrfiles.com/ugd/badafb_4c3d13fe449b4098a50333befe88e339.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/xujuwewudoluwune.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/2016_biweekly_payroll_calendar_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/sewokeduponimerolesuma.pdf
    • https://static.usrfiles.com/ugd/882da0_9463fba5d04b485daf04c2908d2eca4b.pdf
    • https://static.usrfiles.com/ugd/49be48_26b75d4d736d4f58a33aafa8ef84074e.pdf
    • https://static.usrfiles.com/ugd/c3548c_de2177c9a1e3485b9bccf2a261e519e3.pdf
    • https://static.usrfiles.com/ugd/de65f7_ceacb7e0b429425789608b382911a1be.pdf
    • https://static.usrfiles.com/ugd/c450b2_6aaf3ec52785421097de0063ec092858.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_off00008b34.bin
3b89a1333aa93e194de12c5c5da229a8f3a969ace6b07a90c5323b9ece6747ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B34 2828 bytes
font_01_sfnt_off0000952f.bin
efbbfda265bbde17ed19be386512fbe1c5e7f92c8a20878176276f5d2b3b0594		 pdf-font-stream PDF embedded font (sfnt) at offset 0x952F 4892 bytes
font_02_sfnt_off0000a5c5.bin
b7a4168d92624f697cbdade74340e009743e3df46f7692e060a14d8b42470e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5C5 10104 bytes

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