Malicious PDF — malware analysis report

Static analysis result for SHA-256 1916aec5edfd09b0…

MALICIOUS

PDF

42.6 KB Created: 2020-08-03 15:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d4ac32f915c3cde2482e3340bb04ec1 SHA-1: 4c7b263a3920abf613e05b25d5d80f4166b92b75 SHA-256: 1916aec5edfd09b034745419f19fd14198a05df44cbac7ee1ab6bdabb72441c3
140 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 'ttraff.ru', which is disguised as a home loan application form. The document body also contains this URL and numerous other links hosted on Shopify, likely part of a link farm to improve search engine ranking for malicious content. The presence of a callback lure suggests a phishing or scam attempt.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=allahabad+bank+home+loan+application+form+pdf
    • http://files.ohiochessacademy.com/uploads/1/3/0/9/130969801/tuwikezunonudovogi.pdf
    • http://files.kinderdancemetrostl.com/uploads/1/3/2/3/132302759/linarufivijidi.pdf
    • http://files.victoriavisions.com/uploads/1/3/1/4/131438616/5484131.pdf
    • http://files.aprautobodys.com/uploads/1/3/1/4/131453084/nivumowalikuxim_fesatux_gaxiverib.pdf
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/vitovo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0517/4183/files/vujinefop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/varanomavumozomadeda.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/pawajur.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/62318153297.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/38444386834.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9137/files/xorejefenitowegagot.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/vurilimozogi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/rufegasir.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/58276645578.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/16943139773.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/ximesemeduz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/bimimisixa.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_off00005e07.bin
ce8ec075fd0c23544324ba462eb7eee51d94de9767b2d76a3bfeeef247b92308
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E07 5408 bytes
font_01_sfnt_off00007039.bin
13678a14b930e6d42e11b2ac41b13981c2c7f5938cc30cfb194ad51886f1f1dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7039 2092 bytes
font_02_sfnt_off000079de.bin
fabe1eddced10f8c14e2933b75d762ee82cabae642176327643fbdf358283aae
pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 10148 bytes