Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5305aaa6092b4b3…

MALICIOUS

PDF

34.9 KB Created: 2020-08-01 11:39:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 534edc2d05a6349e2baff62edd018735 SHA-1: 622456d11139717c3a99679d98309b2efbfeb70e SHA-256: d5305aaa6092b4b3c4d8471da7a2fe85e40299d5c33f28a15631a8034dba7abe
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to a URL associated with malicious activity. The document body, though heavily obfuscated, contains text related to a generator manual and the URL that is also present in the heuristics. This suggests the document is a lure to drive traffic to malicious infrastructure.

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.ru/pify?keyword=coleman+powermate+4000+watt+generator+manual
    • http://files.ceciliaviney.com/uploads/1/3/0/8/130874017/c596ac.pdf
    • http://files.penreviews.net/uploads/1/3/0/7/130776483/vavapegiwagorole.pdf
    • http://files.scottysunlimited.com/uploads/1/3/2/3/132302711/70181.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9856/files/bebedawevisenuxixa.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/lurimuxowukupunabibakubir.pdf
    • https://cdn.shopify.com/s/files/1/0434/8336/5528/files/63867560576.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33540287451.pdf
    • https://cdn.shopify.com/s/files/1/0437/2001/6024/files/jezog.pdf
    • https://cdn.shopify.com/s/files/1/0435/3504/0664/files/najulamob.pdf
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/77616344697.pdf
    • https://cdn.shopify.com/s/files/1/0434/9198/3512/files/60656880961.pdf
    • https://cdn.shopify.com/s/files/1/0439/4729/4875/files/bedadatepozupena.pdf
    • https://cdn.shopify.com/s/files/1/0434/3303/3880/files/94524112949.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/p4merge_git_windows.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bdc.bin
6266375f0180385b0b5a954919013cf8584bb3374ff7654a7102715bd9149c76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDC 5188 bytes
font_01_sfnt_off00005d7c.bin
b4deff4e9a23e8e698e2150067c4c32a1fa43ed03e26e97c585f1a0b2861a367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7C 9688 bytes

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