Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e05335b5caf375e…

MALICIOUS

PDF

41.5 KB Created: 2020-08-27 13:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 774a8fa08aab57676c3e734b50ebf87c SHA-1: e4ce065e22bd634627c0de216ca6e17e3a88dcdf SHA-256: 9e05335b5caf375e2af5fb831c49f1ba36998b2c9ccfaa89bec9497b5394def4
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with at least one pointing to a known malicious redirector at 'ttraff.com'. The document body also contains the same redirector URL, suggesting it is the primary lure. The presence of numerous PDF links, many hosted on shopify.com, indicates a link farm designed to obscure the malicious destination. No scripts were extracted, and the document body is heavily obfuscated, but the malicious redirector is the clearest indicator of malicious intent.

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.com/pify?keyword=adnet+sport+streaming
    • http://files.reaysplace.com.au/uploads/1/3/1/4/131406211/zamigonusema-lotikejibudun.pdf
    • http://loluze.diversifiedfixture.com/uploads/1/3/1/3/131383297/nofukitave-daloxavurek-jomebewepofil.pdf
    • http://betisodel.stpaulscollingswood.com/uploads/1/3/2/6/132695742/1235175.pdf
    • http://turaluzaj.centralcoastdahlias.org/uploads/1/3/0/9/130968996/3119872.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5574/files/50844559396.pdf
    • https://cdn.shopify.com/s/files/1/0431/5388/3293/files/44593934819.pdf
    • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/mefowukavodigenitevoka.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/basic_accounting_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/80251972495.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/benikototokuferela.pdf
    • https://cdn.shopify.com/s/files/1/0430/9955/3959/files/24969809455.pdf
    • https://cdn.shopify.com/s/files/1/0429/2716/1507/files/tefedaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/gitoluso.pdf
    • https://cdn.shopify.com/s/files/1/0432/7112/7206/files/shining_soul_2_fusing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/85114950502.pdf
    • https://cdn.shopify.com/s/files/1/0438/2146/5757/files/6050636213.pdf
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/bibetafeve.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7348/files/3530514941.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_off00006257.bin
6516c0ae05641b23c755c316288484fdf3d0e0cf2b9501a5338e28300620303e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6257 5236 bytes
font_01_sfnt_off00007405.bin
ff2bc9ce993fea32ad4120628c13c2b0620d5134d634086b608e32d19792f5a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7405 10888 bytes