Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8066ed23b5b9ee5…

MALICIOUS

PDF

63.2 KB Created: 2020-07-31 10:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3432b129decf21373fd07ed74e2977b SHA-1: 8b89f294d0460067cc19a6fb2f5c77488b1ad06a SHA-256: b8066ed23b5b9ee57796a17dda66ba6ac09729abf306507df4835b56acb8b4a2
142 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on 'cdn.shopify.com', suggesting a link farm or SEO poisoning attempt. The document also contains a callback lure, indicating a potential phishing or tech-support scam. No scripts were extracted, but the presence of malicious links and the callback lure strongly suggest a social engineering attack aimed at redirecting users to malicious sites or tricking them into further interaction.

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=basic+ibm+mainframe+assembly+language+programming+pdf
    • http://files.chemistryindustry.biz/uploads/1/3/0/7/130776131/e4568fec9.pdf
    • http://files.elsewherebecca.com/uploads/1/3/1/8/131856285/litutajedonu.pdf
    • http://files.cypresschasecondoc.com/uploads/1/3/0/9/130969974/4909704.pdf
    • http://files.beckleyareaderbydames.com/uploads/1/3/0/7/130775982/abbedc9.pdf
    • http://files.fcchartselle.com/uploads/1/3/1/4/131406092/fosezatu.pdf
    • http://files.fcchartselle.com/uplo
    • https://cdn.shopify.com/s/files/1/0430/6314/8695/files/85997479327.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/69908062984.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/79913673736.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/xopusawalatokesutepip.pdf
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/vizodotefamokole.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/jukelasobobebarudu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/6442727905.pdf
    • https://cdn.shopify.com/s/files/1/0434/5505/3989/files/76012663431.pdf
    • https://cdn.shopify.com/s/files/1/0430/9116/5333/files/92860476482.pdf
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/bomubewiledomese.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/83291758917.pdf
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/pakinasanewezod.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_off0000afd0.bin
e6fb5112df0b4ab98d1bbbd5669d3f4c9dae8e1e0ec91e6b75a675fa24ef1a20
pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD0 5568 bytes
font_01_sfnt_off0000c299.bin
37e57d4c15bbbf7a6c00487a0e0c9fcfe6455b7227073261b6f497f0ada63a53
pdf-font-stream PDF embedded font (sfnt) at offset 0xC299 14220 bytes