Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2dc3800cd3d0d1…

MALICIOUS

PDF

43.9 KB Created: 2020-08-02 03:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50c5ff004fd31ffa3b7e294fe103dc77 SHA-1: 88469ffe0a89bf1902010c7351fd3c09b8b22aeb SHA-256: 4c2dc3800cd3d0d1f12c87d4811ec8a6735287ecdb9040926a647afa5ebf9af7
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 link farm hosted on cdn.shopify.com. One prominent link, disguised as a search result, redirects to a malicious URL on ttraff.com. This suggests a social engineering attack aimed at driving traffic to potentially malicious content or phishing sites.

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.com/pify?keyword=javascript+check+if+number+is+even
    • http://files.rebeccasacksmezzo.com/uploads/1/3/0/9/130969717/9893055.pdf
    • http://files.mindmeltgames.com/uploads/1/3/1/6/131606697/lutoworakijij.pdf
    • http://files.eventfinishers.co.uk/uploads/1/3/1/4/131453194/zulekaxujepoza-savudugo-bepak.pdf
    • http://files.getlawncarenow.com/uploads/1/3/1/4/131454567/3618801.pdf
    • https://cdn.shopify.com/s/files/1/0440/5025/1941/files/nejetoliw.pdf
    • https://cdn.shopify.com/s/files/1/0437/7991/5937/files/mototugelom.pdf
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/52250384059.pdf
    • https://cdn.shopify.com/s/files/1/0437/5547/1006/files/winitadorubefesilamapudon.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevuwuvufotolotatagonisex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59577082877.pdf
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/iso_to_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/povagokevemakimep.pdf
    • https://cdn.shopify.com/s/files/1/0430/5790/5818/files/dazonazadotakaret.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/95748272516.pdf
    • https://cdn.shopify.com/s/files/1/0436/7345/2697/files/42253492571.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/nojigufuwesavunalo.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_off00006d2e.bin
21f37220406151fefd86410d930ff7781e2362a3a52d1f7f1b190f6f1179d8b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2E 5476 bytes
font_01_sfnt_off00007fae.bin
d3e863c77cb700a2c2b2f34fadff454aae6d5cf1e2f47a28c5a09918828d29b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAE 10320 bytes

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