Malicious PDF — malware analysis report

Static analysis result for SHA-256 9816d29ccd6bb960…

MALICIOUS

PDF

44.3 KB Created: 2020-08-07 09:36:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f59d7bf22d317d22b070cc43a088e3f SHA-1: a27adb3568ad0f16bf0f1e85d12f08c89721d857 SHA-256: 9816d29ccd6bb960d722c381fb26fea9981f5e948672d54c8fb40a4e8fa5376d
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a document about 'plunger type pump'. It also hosts a large number of external PDF links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The presence of a callback phishing lure suggests a social engineering attempt to trick users into calling a fraudulent support number. The primary malicious IOC is the ttraff.cc redirector, which likely leads to further malicious content.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=plunger+type+pump+pdf
    • http://muzor.emilyrobards.com/uploads/1/3/2/6/132681352/4b731.pdf
    • http://files.thegorsebush.com/uploads/1/3/0/7/130775520/e23b9573f.pdf
    • http://files.5thstreetfinancial.net/uploads/1/3/0/7/130739564/8840780.pdf
    • http://files.jerkngo-olympiafields.com/uploads/1/3/1/3/131380031/fuwisakovazafepevopo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6286/0699/files/genozov.pdf
    • https://cdn.shopify.com/s/files/1/0431/6646/6202/files/zifovametarijelud.pdf
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/eighteenth_brumaire.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/88282098732.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/34654587594.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/muwadubofivaku.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/11453870102.pdf
    • https://cdn.shopify.com/s/files/1/0433/4659/1895/files/48788677995.pdf
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/tonubewapaxefugilituvu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/keziwiwixakowaliwex.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4651/files/45116826039.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_off00006b0d.bin
fc67cf2de75befce2728f5a2f3ed32409d45ff272a26861f7e0d8f6aff5dea9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 5076 bytes
font_01_sfnt_off00007c49.bin
4b5b5b6426c17a8057e18edd1b3f7fbace5db08a1255e6fb3ee142e4dc6e59db
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C49 12512 bytes