Malicious PDF — malware analysis report

Static analysis result for SHA-256 32510e0f30c005bd…

MALICIOUS

PDF

53.5 KB Created: 2020-08-13 01:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 498d1e3ddd119c619f5038972ae53078 SHA-1: 6f6952979191f1b0d9a155553b3dcfaa63b7052c SHA-256: 32510e0f30c005bd83983c8e34e9f5448d9b2646668778e4f1ff26e7c42d5b94
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a specific malicious redirector URL, disguised as a musical score. The primary malicious URL, 'https://ttraff.ru/pify?keyword=beethoven+5th+symphony+score+pdf', is designed to redirect users to potentially harmful content. The file's structure and embedded links suggest a social engineering tactic to trick users into navigating to malicious infrastructure.

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.ru/pify?keyword=beethoven+5th+symphony+score+pdf
    • http://xemirox.unleashthefunatrudys.com/uploads/1/3/2/6/132682883/4708067.pdf
    • http://bukesoj.timberkreekcarving.com/uploads/1/3/1/3/131380600/pijikixilire.pdf
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/63005904435.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/solid_state_switching_circuits.pdf
    • https://cdn.shopify.com/s/files/1/0431/8694/6206/files/83423497559.pdf
    • https://cdn.shopify.com/s/files/1/0431/8635/6375/files/guwumomolotitixudawobozeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/3000/files/31161589662.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/44150129024.pdf
    • https://cdn.shopify.com/s/files/1/0428/9655/6191/files/sukadomegajexawumuw.pdf
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/muparanofoza.pdf
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/79217319434.pdf
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/baixar_possuida_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdf
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/62709588638.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_off00006d7e.bin
a90f846793e24f0cae54844ae023d683ddc980f168ddea278f0278e1b6cd4b86
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7E 5488 bytes
font_01_sfnt_off00008013.bin
7383673c43d3d57ae5b544595995843a0d0af64ed638a54a806b914b6fbb06c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8013 15700 bytes
font_02_sfnt_off0000b127.bin
d6e666677984080c5ac9024d66c2ab428332c3141b6d2ea0b259e7445cc8c68a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB127 16164 bytes