Malicious PDF — malware analysis report

Static analysis result for SHA-256 819fb42874ed69c6…

MALICIOUS

PDF

83.5 KB Created: 2020-08-18 20:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54cc6045d322f1a31183f387972b08a3 SHA-1: 6785fb44dda9ff708b57fa0ed1759fdad822b6bc SHA-256: 819fb42874ed69c618ea52f3fb4fd1af44c197ab32e77a2b3eff6e000b313438
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to an annual report and the malicious URL. This suggests a social engineering attack aiming to trick users into visiting a compromised site, likely for further exploitation or credential harvesting.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=jubilee+industries+holdings+ltd+annual+report
    • http://darexaw.kelseyroserocks.com/uploads/1/3/1/3/131380429/25c11003.pdf
    • http://nafevi.dia-healthcare.com/uploads/1/3/0/8/130813834/nukoxatuxival-bobetise.pdf
    • http://files.shodacars.com/uploads/1/3/0/8/130813616/1557f.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/tixunozesapifad.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/savesajuva.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/28298011584.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kenetawibonilolususede.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/cancionero_liturgico_nacional_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0448/4166/4669/files/vyond_character_creator.pdf
    • https://cdn.shopify.com/s/files/1/0438/5977/1557/files/wazulirinazex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/broiler_management_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0429/3784/3871/files/adiemus_songs_of_sanctuary.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_off0000e6a7.bin
122c0ec1b742a9a77437d9e813f92f1aec6288ff8e65f20a9f77406c035ce05d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A7 7320 bytes
font_01_sfnt_off0000ff7b.bin
b3acd9a8bf24e8018582d25825670da0ecae94d527dcf32e7ff468ef4e68277a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7B 5348 bytes
font_02_sfnt_off0001118b.bin
f3e5bab8e558659145fc1af05a02f1d61f5e562013c7e7fa25e1a2f1babc5a1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x1118B 15068 bytes