Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8031a65a857fc9f…

MALICIOUS

PDF

42.6 KB Created: 2020-08-08 17:53:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 509384d08e6a7922b62781870564b685 SHA-1: 15049313bfcc30552ce63e90008ee71b1ae0b112 SHA-256: d8031a65a857fc9f37bcd6df21b3bd49f0fdfcade4128d0d96248bd595d1e2c9
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=about+yourself+essay+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the text 'About yourself essay pdf', suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure via the embedded link.

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.cc/pify?keyword=about+yourself+essay+pdf
    • http://negotaz.jackpotsportfishingcostarica.com/uploads/1/3/1/0/131070786/nakaron.pdf
    • http://files.6yedollglobal.com/uploads/1/3/0/7/130739836/larolorimutiloxil.pdf
    • http://files.affordabletowingnearme.com/uploads/1/3/1/4/131483491/2004edf72.pdf
    • https://cdn.shopify.com/s/files/1/0438/1723/8685/files/98560136105.pdf
    • https://cdn.shopify.com/s/files/1/0429/9443/4207/files/rozuwazupolokilukogo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/8342866141.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/37924437157.pdf
    • https://cdn.shopify.com/s/files/1/0437/2519/3368/files/gubufowuzimagidef.pdf
    • https://cdn.shopify.com/s/files/1/0433/4875/4600/files/2002_vw_passat_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/54606601489.pdf
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/nuwave_induction_cooktop.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/44712996024.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/learning_vlookup_in_excel_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/6582/7747/files/flyingtuna_osu_skin.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_off00006a4a.bin
2549cc34875ac25d3cce434b8b2832cd3fddf6d736f91c8351e57912bc30517a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4A 5264 bytes
font_01_sfnt_off00007c44.bin
a97bb04208aa83a6a5cb5455f1f0fd628cb4c7f944ffce4a014ecdb0ee09951e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C44 9880 bytes

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