Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f358f251a7d3156…

MALICIOUS

PDF

42.1 KB Created: 2020-08-05 01:19:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 694bda9aa12d3ba1e5713b06f860d2e6 SHA-1: 603e12779aa31e4f7fa454cd7270a01530113dab SHA-256: 7f358f251a7d31560980a615eaa7e93347ee04c8baef9c91a1f7029bf76ba263
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains text suggesting a lure related to an 'autobiographical narrative pdf'. The presence of a link farm indicates an attempt to manipulate search engine results or distribute malicious content broadly. The primary malicious IOC is the redirector URL.

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=autobiographical+narrative+pdf
    • http://files.hlfmgoats.com/uploads/1/3/1/3/131383553/jopaxubesoz.pdf
    • http://files.customtshirts-more.com/uploads/1/3/1/8/131857419/1526649.pdf
    • http://files.lindsay-hamilton.com/uploads/1/3/0/7/130739559/gupoleg-vajam-nafolagibov.pdf
    • http://files.salmansoz.com/uploads/1/3/1/6/131606984/2569171.pdf
    • https://cdn.shopify.com/s/files/1/0430/6177/2442/files/36876121086.pdf
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/97321723097.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/92329483960.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/penixosusimugotutuliruziv.pdf
    • https://cdn.shopify.com/s/files/1/0435/3638/4159/files/fuzorogos.pdf
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/zar_biostatistical_analysis_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/reragijod.pdf
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/mind_on_statistics_5th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/19789335521.pdf
    • https://cdn.shopify.com/s/files/1/0434/3418/0769/files/verefokasovok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5915/8940/files/essentials_of_contemporary_management_7th_edition.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_off000065f5.bin
0dedcfa214f3cdc8e3c94a8756f027d3a4965fc1c5dd8ee419e2283525ad6e57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F5 5428 bytes
font_01_sfnt_off00007871.bin
8028be3135e6e158e2a67104c2e63f39ea6df5684c498bdf81478202aaa219f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7871 10196 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.