Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e00312e09f3b45…

MALICIOUS

PDF

144.2 KB Created: 2020-09-12 00:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a138d363cc0c3ec30a21b32e459463 SHA-1: 988beb5b550ad3cacb37b687c460350dac21ab31 SHA-256: e7e00312e09f3b4573d79461af46d348efef2799a61200d3b97b9e642e141114
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for malicious redirector links, specifically pointing to 'https://ttraff.me/wix?keyword=kerala+box+office+report'. The document body, though heavily obfuscated, contains text related to 'Kerala box office report' and the malicious URL, suggesting a lure. The PDF also contains a large number of embedded external links, indicative of a link farm, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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.me/wix?keyword=kerala+box+office+report
    • http://files.smugshots.co.za/uploads/1/3/0/9/130969772/sabasitex_taveginexowupun_bijemaruw_xireguviwesupo.pdf
    • http://seriwe.huffmansflowersofthefield.com/uploads/1/3/0/7/130739892/jopegutoro.pdf
    • http://files.tshirtcompanycharlotte.com/uploads/1/3/0/8/130874264/bilenejo-fezine-tivibomigan.pdf
    • http://files.gonefishinnd.com/uploads/1/3/1/4/131410685/7577893.pdf
    • http://files.myhorribleidea.com/uploads/1/3/2/8/132815004/1836057e2f.pdf
    • https://static.usrfiles.com/ugd/bf57b5_0c2f5be8018141ea92ed5b74126df606.pdf
    • https://static.usrfiles.com/ugd/760101_df1fb472d6ae47d39b9fa3c087724456.pdf
    • https://static.usrfiles.com/ugd/b8c837_13cec9d0f67f43a7acac605aaaaa5d1e.pdf
    • https://static.usrfiles.com/ugd/39a0fd_10d3139586f14e568c20835e814bf02a.pdf
    • https://cdn.shopify.com/s/files/1/0431/8658/5764/files/application_for_employment_as_a_driver_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/63182709874.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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0001c667.bin
5ec4f74355369b5010d1e0e157a675dd87e575fff01f3adffa458394bc78ec5c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C667 5668 bytes
font_00_sfnt_off000182b8.bin
674c2633c72767ec3a15485636df333e1f61ceb2d8886186e763efce1aa20b6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x182B8 4688 bytes
font_01_sfnt_off000192be.bin
379e8c9c792cb7bcbae6325ed07b4def3ae76c74572377018de9f9d3ae2baf2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x192BE 8388 bytes
font_02_sfnt_off0001ab7c.bin
0c04fa5b15cc1c9ae27568dcdd3d1768e76d8fbbd3481c9775903218a719941d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB7C 8716 bytes
font_04_sfnt_off0001db2b.bin
fa4cc43de83a7dc94329d9e0b027a2fbe183a1fc93313189ab481769c203b494		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DB2B 16516 bytes
font_05_sfnt_off00020ebf.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20EBF 16164 bytes
font_06_sfnt_off000223d8.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x223D8 4324 bytes

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