Malicious PDF — malware analysis report

Static analysis result for SHA-256 df85be68432f16bd…

MALICIOUS

PDF

55.9 KB Created: 2020-08-12 03:23:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8a5b3d8eb0f2131ebfb418c05324f89 SHA-1: 864385e6487d8d8735f3702913e0ce3206d59458 SHA-256: df85be68432f16bd1006ba9fac3a5620ac3bbb074360794c658ef98c1c9dff8d
140 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects through 'ttraff.cc', a known malicious redirector. The document body also contains text suggesting a callback phishing or tech-support scam pretext, asking the user to call a number in a billing or refund context. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site, likely for credential harvesting or further malware delivery.

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=banking+service+chronicle+pdf+december+2020
    • http://files.911bodyresq.com/uploads/1/3/0/7/130776118/natarudul-wasawebi-pifag-nisaneneduk.pdf
    • http://barusu.charlottehaenlein.co.uk/uploads/1/3/1/1/131164250/3accb60.pdf
    • http://jubuleper.creedmoorcivic.org/uploads/1/3/0/7/130775350/medubebewodovoma.pdf
    • http://files.followingthejoy.com/uploads/1/3/0/9/130969424/panavufabemena_kabeburo_vaxuki_mizuvaxoxon.pdf
    • http://files.cuttingedgesebringfl.com/uploads/1/3/1/6/131637352/dales.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/79945608230.pdf
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/aatrox_jungle_build.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/feregixinopezuv.pdf
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/61698786696.pdf
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/44440120143.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/vusorerokugefelosat.pdf
    • https://cdn.shopify.com/s/files/1/0435/5093/3155/files/42804120337.pdf
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/rujijerejafikulusabowa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/1895172588.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/92819279433.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5893/files/tozudaru.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_off000085b9.bin
3b14ddcc0741dc36dd5367af987be3a507e6d9c3cd97c6a68d88031dd1b71ee2
pdf-font-stream PDF embedded font (sfnt) at offset 0x85B9 5864 bytes
font_01_sfnt_off00009976.bin
28befdb432dcb5e7b4f669660d2312a083244b02e4ca7704a7d8a6f6ce77d5f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9976 13320 bytes
font_02_sfnt_off0000c3ea.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xC3EA 4324 bytes