Malicious PDF — malware analysis report

Static analysis result for SHA-256 522e27abd10a7126…

MALICIOUS

PDF

34.0 KB Created: 2020-08-08 05:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3962007963d7e60e9a638487ea89acf0 SHA-1: 5f716ed0b7def2620ffe515fa587a1450e22df69 SHA-256: 522e27abd10a7126f4078e9844f99e25ce905f8d8debc44c611e391a6f364f3a
140 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, suggesting a phishing or scam attempt. The document body, though partially corrupted, indicates a lure related to 'Canada immigration form download pdf'. The presence of numerous external PDF links, many hosted on Shopify, points towards an attempt to distribute malicious content or redirect users to phishing sites. The heuristic 'SE_CALLBACK_LURE' further supports a social engineering pretext.

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.ru/pify?keyword=canada+immigration+form+download+pdf
    • http://files.connallyband.com/uploads/1/3/1/8/131856381/koguwoxixude.pdf
    • http://darof.artandtattoo.com/uploads/1/3/2/7/132712615/pekidagufexukexov.pdf
    • http://files.shopkoco.com/uploads/1/3/2/6/132682813/gezafurefexafu-wikure-wexul-bozexozanok.pdf
    • http://files.thepodatcrosby.com/uploads/1/3/2/6/132681985/teloduton.pdf
    • https://cdn.shopify.com/s/files/1/0433/3171/5225/files/depemetomowovakabar.pdf
    • https://cdn.shopify.com/s/files/1/0432/1869/8400/files/alelo_definicion_genetica.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/50730315596.pdf
    • https://cdn.shopify.com/s/files/1/0434/5276/0224/files/wastewater_management_project.pdf
    • https://cdn.shopify.com/s/files/1/0432/6952/1568/files/cirurgia_de_hernia_inguinal.pdf
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/25400879723.pdf
    • https://cdn.shopify.com/s/files/1/0431/3579/5354/files/kobopota.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/3397915799.pdf
    • https://cdn.shopify.com/s/files/1/0437/7939/1646/files/piboxetupenijawukuloxitu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/69103020975.pdf
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/pictionary_rules.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/zusokod.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_off000048da.bin
fd244357a095297645d65ceb262de23bfe03e85d38added7e0e0136bc21fd4c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x48DA 5180 bytes
font_01_sfnt_off00005a78.bin
24210b586e42bc70f599f76f9f5b89d84930592350420aebfafc9f65d4c864d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A78 9596 bytes