Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d47beda1ea4000…

MALICIOUS

PDF

55.1 KB Created: 2020-08-14 21:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e90cc5d68b80c4f6f143da635a58dbd8 SHA-1: 2fd21668f67fe83d6bf0c5b0eb3561d5993b60d7 SHA-256: c4d47beda1ea400007c917dd89cadef6254189b95b2609d9f47ff434b69357e8
130 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, disguised as a guide for 'Dragon age origins mods installation guide'. The PDF also functions as a link farm, with numerous embedded links pointing to various PDF files, many hosted on Shopify. One of these links, 'http://bomovore.lms-art.co.uk/uploads/1/3/1/4/131453574/dopakinefob.pdf', is also flagged as unknown. The presence of a visual download button further supports a malicious intent to trick the user into clicking the link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dragon+age+origins+mods+installation+guide
    • http://bomovore.lms-art.co.uk/uploads/1/3/1/4/131453574/dopakinefob.pdf
    • https://cdn.shopify.com/s/files/1/0447/6112/0919/files/pokemon_go_iosemus.pdf
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/roosa_master_injection_pump.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/archive_magazine_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5277/7128/files/83104636872.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/lesezuzodilojek.pdf
    • https://cdn.shopify.com/s/files/1/0430/6613/0593/files/xegagojububo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7319/8487/files/mosobujizojofa.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/sql_interview_questions_and_answers_for_freshers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/26896084894.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4658/files/podutajufidavijilezepegev.pdf
    • https://cdn.shopify.com/s/files/1/0434/4178/2946/files/92386982370.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_off00008e98.bin
7f89109da1d2d9a5c25fda5d6c02df8ec501932b643283ebd4fa1116a1aef6e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E98 5028 bytes
font_01_sfnt_off00009f94.bin
77bb1202f8c9cdb0d627d75cf30ceaeaf1f5890cd7f5bf2b792b764a02c55df7
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F94 9968 bytes
font_02_sfnt_off0000c1bf.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BF 4324 bytes