Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc56fc2fede5daf…

MALICIOUS

PDF

36.9 KB Created: 2020-08-08 22:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99f26bbcb28544995e2eca31558bed3d SHA-1: ca2b54a92e9c8ccfb97885768aa61b8f7b7120f8 SHA-256: cdc56fc2fede5dafeaff51a1977ce890ebdf9510712739f5b00d57dde825ecc8
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring users to the 'ttraff.com' redirector, which likely leads to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=darth+plagueis+pdf+descargar
    • http://lefojil.tarinarosesocialmedia.com/uploads/1/3/2/8/132814930/xepiwajaliz_sanim.pdf
    • http://files.buffalostateannefrankproject-rwanda.com/uploads/1/3/1/8/131871618/vatefitujebibox.pdf
    • http://files.nandaphoto.com/uploads/1/3/1/3/131383934/dawun-mukeresavabuda-digaxafulub-piteluxanabifu.pdf
    • https://cdn.shopify.com/s/files/1/0438/1065/2317/files/nccer_millwright_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0451/3293/9429/files/alter_ego_a2_vk.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/wopeboxatavoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/gefagovasomep.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7626/files/wojigewol.pdf
    • https://cdn.shopify.com/s/files/1/0435/9910/2115/files/poultry_breeder_farm_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/2684/0738/files/golumudanugebejadob.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7855/files/inorder_successor_in_bst.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/36464282606.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/lodikolasaboxala.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/zuwipufefekesupijomof.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdf
    • https://cdn.shopify.com/s/files/1/0437/6795/5610/files/85784229644.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_off0000512e.bin
0a1f0a37f0285d47ab42d487c93140d8a581e7d86e0f1f12298739c8e08307a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x512E 5416 bytes
font_01_sfnt_off0000639f.bin
06a2890331c07f6fece71a0c162a0b5bc18fa1705166865abfa9596f0044fcfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 10216 bytes