Malicious PDF — malware analysis report

Static analysis result for SHA-256 42ebbd6bd71830da…

MALICIOUS

PDF

39.7 KB Created: 2020-08-08 13:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c580e435d04b884a65b474996a44e40 SHA-1: 5e99ce848ecd636faff3571510bbd84d0c90d277 SHA-256: 42ebbd6bd71830da6e55c8144cc60852b205b73cf24f75e7bed6ac22b33558d9
162 Risk Score

Malware Insights

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

The PDF contains a link farm designed to lure users to malicious redirectors, specifically `https://ttraff.cc/pify?keyword=download+aadhaar+card+pdf+format`. The document also exhibits characteristics of a credential harvesting lure, asking for MFA confirmation. The presence of numerous embedded links, many pointing to Shopify domains, suggests an attempt to disguise the malicious intent behind a facade of legitimate-looking documents.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=download+aadhaar+card+pdf+format
    • http://files.ousddata.org/uploads/1/3/1/8/131857305/e2f9b3.pdf
    • http://files.jacquelineschiffer.com/uploads/1/3/0/9/130969939/noguw.pdf
    • http://files.roundtuitkitchen.com/uploads/1/3/1/4/131438193/fegegafu_tatuzipakatu_gegurotusebi.pdf
    • http://files.frecklefaceboutiques.com/uploads/1/3/0/7/130739457/nezutoxewaroxe-kirisim.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/47291751122.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/luvutalanopijomakel.pdf
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/getelodoladabogenowobepun.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/makusowediratadolexi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/yuri_lowell_artes.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/common_media_queries.pdf
    • https://cdn.shopify.com/s/files/1/0439/3874/2430/files/64995339205.pdf
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/chairperson_duties.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/9076311907.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/92923818108.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_off00005dd3.bin
e7f7939c1b5d51afaff77e9865010edb121ad50f1e78033553593da9fabc13a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD3 5308 bytes
font_01_sfnt_off00006fd5.bin
9526899bfa0c65683ab259546c0cc62f8291251a0d4ea780d781908ed859dd69
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 10076 bytes