Malicious PDF — malware analysis report

Static analysis result for SHA-256 86de8d15a3ec7f63…

MALICIOUS

PDF

34.3 KB Created: 2020-08-04 19:43:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffee2e54696d50157d13c8e51f3cc5bc SHA-1: 0af6edf20bd1f57fcf91dc0f39dd348a135a6953 SHA-256: 86de8d15a3ec7f630df4121cdc8b5a09d5baf23702c15e12907af8d56fdfc627
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains references to this malicious URL and other URLs that appear to be part of a link farm. This suggests the document is designed to redirect users 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=mg2+capsule+filling+machine+pdf
    • http://files.spittpassion.com/uploads/1/3/0/7/130739892/5246af48.pdf
    • http://files.falconeerkennels.com/uploads/1/3/1/4/131438464/jobibu_wamifofugojede.pdf
    • http://files.wildheartadventurecamp.org/uploads/1/3/0/7/130740184/pifojika_pabazi_xaludusoz_molivonin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/alien_abduction_incident_in_lake_county.pdf
    • https://cdn.shopify.com/s/files/1/0440/6896/2469/files/saronenesulexiwama.pdf
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/tirap.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/togiguruziji.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golizikedakumeru.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9831/files/40517224628.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9142282406.pdf
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/2702692751.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5241/files/bojiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/toputenijuriboladesawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/bukhari_sharif_in_urdu_jild_1_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/10626599259.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_off000047b5.bin
34330575d19a0447cf87a44dc29f3bfaa1bf17a2f72d15f6c6f8901679ace1c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x47B5 5608 bytes
font_01_sfnt_off00005ab8.bin
da6d746430100e20d72891e56dca16a605f95d45f65432b855bc545fb52bd847
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB8 10124 bytes