Malicious PDF — malware analysis report

Static analysis result for SHA-256 df6968fd9a2b80e6…

MALICIOUS

PDF

49.3 KB Created: 2020-08-14 05:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 540c50db3fc5986889283819906b6931 SHA-1: 27fcf3c19ceee448281668849061c204b0cbbadd SHA-256: df6968fd9a2b80e6cfba3725e9c7be51da05471c5935f86fb20637abb8c1a0d1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=adopcion%20de%20parejas%20homosexuales%20a%20favor%20pdf'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the redirection attempt.

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/wb?keyword=adopcion%20de%20parejas%20homosexuales%20a%20favor%20pdf
    • http://files.virginiacitytreasureisland.com/uploads/1/3/1/3/131380292/soxuvofinawu.pdf
    • http://solak.elizabethpolinskylcsw.com/uploads/1/3/1/4/131453501/7179149.pdf
    • http://tinosezir.trimstechnology.com/uploads/1/3/0/7/130738629/pumidamizubugidipuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/9552/3485/files/cursive_alphabets_capital_and_small_letters_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/6825/8469/files/rasisulefi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/gugorexer.pdf
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/diccionario_bblico_ilustrado.pdf
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/comcast_tv_channel_lineup.pdf
    • https://cdn.shopify.com/s/files/1/0433/9944/6693/files/26028526654.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81599599528.pdf
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/adobe_acrobat_reader_dc_in_word_umwandeln.pdf
    • https://cdn.shopify.com/s/files/1/0436/5461/1102/files/tolazavatosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3446/0828/files/62286618650.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_off00007ea9.bin
202a30224b7f643eae2872004fba74efa4c0bfd83d9be5daec2dbab0de586304		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA9 5588 bytes
font_01_sfnt_off00009184.bin
0efaf71d1e7c7ed2c260084fb499c83b7aa67e0e5e8c53043141fae39ef780bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9184 11312 bytes

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