Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b5da926cd1619f6…

MALICIOUS

PDF

51.1 KB Created: 2020-08-17 11:27:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9351b0794059830ee829bb6c3199fb25 SHA-1: 761154acf351a2d6357ab08dcea8334883a821c8 SHA-256: 8b5da926cd1619f67799171d4722a87febeead63b09227a4aa0f15a231f93350
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. The primary malicious link redirects through 'ttraff.cc', a known malicious redirector, and is presented with search query parameters related to a movie. This indicates a social engineering attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer the malicious intent.

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=badlapur+movie+video+song++tinyjuke
    • http://files.chancessprinklers.com/uploads/1/3/1/3/131380511/fudejatafabep.pdf
    • http://vuginira.apbparts.com/uploads/1/3/1/6/131606056/nipebatanu.pdf
    • http://files.atsaccountinginc.com/uploads/1/3/0/9/130969761/e389c.pdf
    • http://files.lifeofastreetdog.com/uploads/1/3/0/8/130813362/2307890.pdf
    • http://zezit.acainhomecare.com/uploads/1/3/0/8/130874422/224579.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/alman_dili_qrammatikas.pdf
    • https://cdn.shopify.com/s/files/1/0428/8921/6167/files/kegolunuvafasonuxigezi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8011/3562/files/succeed_in_cae_10_practice_tests_key.pdf
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/97253487274.pdf
    • https://cdn.shopify.com/s/files/1/0433/5265/3973/files/jamegutudabinofa.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/fakanevobo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1452/0995/files/lista_calciatori_fantacalcio_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/cissp_2015_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/jizanaragemogotoxawar.pdf
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/13696442557.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_off00007213.bin
d31207fcc31b443dee523887291930b99ed6f33b7f973524873bf355bfdb3dde
pdf-font-stream PDF embedded font (sfnt) at offset 0x7213 5632 bytes
font_01_sfnt_off00008535.bin
af2ac0cd4cd194209c54ca4b2012b36a77fa14f351d871960c171f3cfa9b570a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8535 10612 bytes
font_02_sfnt_off0000a9c0.bin
4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9C0 16164 bytes