Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f383100514575ce…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 07:02:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 558f29d620441da72a4a0ac0f277d631 SHA-1: 981eb99bcc00cc9e729c60a1c1147496ac32d77a SHA-256: 9f383100514575ce68ffbe8df7a43a8e7d1bc4beb9a76702a09d686450461e9b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains the text 'Borning room information' and a URL that matches the redirector found in the heuristics. This suggests a social engineering attack aimed at directing users to malicious content. No scripts were extracted, and the primary malicious activity appears to be link-based redirection.

Heuristics 3

  • 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.
  • 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=borning+room+information
    • http://kabegafod.northvicgps.com/uploads/1/3/0/7/130740117/nuwuz.pdf
    • http://wazigote.joneswedding.vip/uploads/1/3/1/4/131438464/papesewepi_wiromuzikaw_vafozeluzazaleg_gekefuw.pdf
    • http://jetunax.calaverasarts.org/uploads/1/3/2/7/132741100/3500105.pdf
    • https://cdn.shopify.com/s/files/1/0429/9443/4202/files/55354885072.pdf
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/20069125066.pdf
    • https://cdn.shopify.com/s/files/1/0439/6836/4702/files/arthur_schopenhauer_biography.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/gakika.pdf
    • https://cdn.shopify.com/s/files/1/0437/4455/9258/files/atomismo_logico.pdf
    • https://cdn.shopify.com/s/files/1/0435/6407/3128/files/fopepikiwitikaletulure.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5312/files/libubexosarebuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/1305/4359/files/1996_ford_bronco_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0088/8483/files/bolne_wala_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0436/5982/1209/files/xipuropumebuzodevawopona.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/weather_report_hyderabad_next_week.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/51287292187.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_off00006765.bin
fea58ff86f150e68a16da43ce29229a1ff5a093b767db790c0f5ce325745f5f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6765 4596 bytes
font_01_sfnt_off000076da.bin
1438de0bc5a1315e1428708ccc40dd2baed03e5a3e8d6fd9769c1bc70772e465
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DA 10636 bytes
font_02_sfnt_off00009b37.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B37 4324 bytes