Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c66a7e6f67d953…

MALICIOUS

PDF

52.9 KB Created: 2020-08-06 05:41:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 915b6a4cb8637a91850d4a016d89c507 SHA-1: d8df70becb8ca1dbfa9566f6965eab4774c08c1f SHA-256: 27c66a7e6f67d953ee5bcfb108c0ace39cb37769bb735c5a03813f0e3385cf82
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic firing indicates that the document links to known malicious redirector infrastructure via the URL https://ttraff.ru/pify?keyword=konsep+amanah+dalam+islam+pdf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or to download further malware. No scripts were extracted from this sample.

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=konsep+amanah+dalam+islam+pdf
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdf
    • http://sowuv.santenkarate.com/uploads/1/3/2/6/132695569/40410124b0948.pdf
    • http://vuzufim.recorderstands.com/uploads/1/3/1/6/131606552/9c01d.pdf
    • http://files.proyecto1867.com/uploads/1/3/2/3/132302913/mozolejemi-vexiramiga-leselu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5023/8101/files/jerufanup.pdf
    • https://cdn.shopify.com/s/files/1/0451/2923/6645/files/budesonide_davis_plus.pdf
    • https://cdn.shopify.com/s/files/1/0430/2641/5779/files/fotibojepol.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/bystronic_press_brake_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdf
    • https://cdn.shopify.com/s/files/1/0435/5493/0839/files/bapoxedofu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2804/4193/files/intertek_electric_fireplace.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/mizesivipewusowuwuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/mikrokosmos_1_bartok.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/nalaruvuxojunubixedimobu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/navevedugimoxatisatalo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b33.bin
48a61c9bab0972116e50546eb752164344bf20107ba096970b531f2ec998879d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B33 4860 bytes
font_01_sfnt_off00007b87.bin
fd5d35bae1cb323d74be80747ff71e2dadf9a30cd1d02fdbce5e6e8b0c9af545
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B87 10036 bytes
font_02_sfnt_off00009e11.bin
645ee4645141b16141487bb8bebc56974161005f421dff1c699bc4511884459e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E11 17144 bytes
font_03_sfnt_off0000b6ae.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xB6AE 4324 bytes