Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f8b5179d2be1bc…

MALICIOUS

PDF

51.7 KB Created: 2020-08-24 15:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e2e7a4df0d7aea0ef08abcdf49c4c2de SHA-1: da71f187fff5e497d50aaddeea2f1d7ab8fa0b7f SHA-256: d6f8b5179d2be1bc6081961284c7d6f58bf17ea6a28de06a441ea5772fd7efdc
142 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to shopify.com domains, suggesting an attempt to obscure the true malicious destination. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure, consistent with callback phishing or tech-support scams. No scripts were extracted from this sample.

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.com/pify?keyword=vector+candela+studio+9.+1
    • http://files.anitaberisha.com/uploads/1/3/1/4/131453847/82ebe7.pdf
    • http://zunun.coachpairing.net/uploads/1/3/2/6/132680813/xuniwabapur-titelimisaro.pdf
    • https://cdn.shopify.com/s/files/1/0465/1188/2398/files/26606401804.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/15551751269.pdf
    • https://cdn.shopify.com/s/files/1/0429/1955/9335/files/bedamekiwijezukumefajefo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/kejaduwoseperabidiluvale.pdf
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/aerodynamics_for_naval_aviators_faa_handbooks.pdf
    • https://cdn.shopify.com/s/files/1/0431/1059/6765/files/husqvarna_128ld_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/eileen_the_crow_questline_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/78318068265.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1968/files/modified_ashworth_scale.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/puwoxejilexokeguwivo.pdf
    • https://cdn.shopify.com/s/files/1/0439/0571/2296/files/formal_dress_shops_australia.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/a_forma_da_agua_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0434/0950/6471/files/9032960420.pdf
    • https://cdn.shopify.com/s/files/1/0435/4372/4186/files/cavernous_malformation_brain_radiopaedia.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_off00008c05.bin
5dec9a4c8fd597621c7dbc704f9e356e49c084dbac84285b77690981cc9c80fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C05 5136 bytes
font_01_sfnt_off00009d87.bin
d28da5b667fa1ef3409061189f5a1452adfd466e0130764edf1384d8c62b64a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D87 10680 bytes