Malicious PDF — malware analysis report

Static analysis result for SHA-256 feaa02fcaaa9a52d…

MALICIOUS

PDF

39.0 KB Created: 2020-08-21 08:43:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e0a79fb03c1071a55521b719ad40c27d SHA-1: 634c6be51acef46bf2ab87832ccdd41e298375ba SHA-256: feaa02fcaaa9a52d560c00f38b2b518d7f42a95ee3dfb09ae0bf0f1946a8e62b
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. The primary malicious URL identified is a redirector, suggesting it's part of a chain designed to deliver further payloads or lead to phishing pages. The document body, though partially corrupted, suggests a lure related to project management procedures.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=project+escalation+procedure+template
    • http://files.doggiedaycareconsulting.com/uploads/1/3/0/7/130775111/nekupefemaxuw-jisula-poweko-vafidiwoxazup.pdf
    • http://dolote.brockenhurst-station-taxis.com/uploads/1/3/1/8/131857120/lavabuguxut.pdf
    • http://files.highlanddesignsstore.com/uploads/1/3/1/4/131408970/kafifuxijopab-pedogefireb-xofexe-nipel.pdf
    • https://cdn.shopify.com/s/files/1/0435/1285/6731/files/minecraft_custom_world_presets.pdf
    • https://cdn.shopify.com/s/files/1/0432/2361/3595/files/10274360664.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/what_is_a_meta_tag.pdf
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/smartsheet_forms_email.pdf
    • https://cdn.shopify.com/s/files/1/0434/4807/4405/files/38344711789.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/migrate_mojang_account.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/98094382942.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/76381695488.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/89809229335.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/exercice_orthographe_6me.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/98934053057.pdf
    • https://cdn.shopify.com/s/files/1/0431/0538/6657/files/foniwa.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_off00005b09.bin
a81e8ce1290dbc11d60d32b5e29c000a08d64a01442d8bd0508e6ab930595de4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B09 5296 bytes
font_01_sfnt_off00006cee.bin
d95fc38dc8ed928fde751cf96ce812cbf5222a004a9627cade21c88ca0a71b7c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEE 10076 bytes