Malicious PDF — malware analysis report

Static analysis result for SHA-256 8704c3bc3fa95339…

MALICIOUS

PDF

53.7 KB Created: 2020-07-15 16:14:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e40f5b19d52280d37ef77c95cc90320 SHA-1: 1633aa1a7cdfd9cb0ce1f69a47736fa7839d2071 SHA-256: 8704c3bc3fa95339ed7dd6af17a3cc3af9ac684aa00831632a856a628cc97b92
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, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=symbol+name+in+english+pdf', points to known malicious redirector infrastructure. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or to download further malware.

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=symbol+name+in+english+pdf
    • http://files.cuttingedge-dancecamp.com/uploads/1/3/0/7/130740538/zodase-kurefefemoxa-mapajosanaser.pdf
    • http://files.imgonnaneedmorefries.com/uploads/1/3/0/7/130775870/9962528.pdf
    • http://files.fuentesvaldesmd.com/uploads/1/3/1/8/131871729/aee0404e17.pdf
    • https://nurosikimigo.files.wordpress
    • https://dijilavuxiji.files.wordpress.com/2020/07/14231601733.pdf
    • https://rikitav.files.wordpress.com/2020/07/19808619413.pdf
    • https://negimolesaf.files.wordpress.com/2020/07/nijurimipol.pdf
    • https://firixomov.files.wordpress.com/2020/07/75251177956.pdf
    • https://desivowol.files.wordpress.com/2020/07/25034723839.pdf
    • https://nurosikimigo.files.wordpress.com/2020/07/88488922705.pdf
    • https://susozunax.files.wordpress.com/2020/07/87062139401.pdf
    • https://pelakejabe.files.wordpress.com/2020/07/15791477712.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/rujifaduzumasetosuwuwupus.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/4775211614.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/87622471135.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/najuni.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/ravapejaworijunesogozuvi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/bodowimoladunarosaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/kixujoponez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b6f.bin
473750be6a1f953987fec7219c7bee59e4d14fa365a640f0874983ac05ee3a0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6F 5412 bytes
font_01_sfnt_off00007d9f.bin
16166edc193d638db26ce31e960ba24c42d5760753ba026904b742bd0d729334
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9F 10840 bytes
font_02_sfnt_off0000a25d.bin
ed04e9586df0a687cf695246873bf835ed73281a430ad639737308f92539eeba
pdf-font-stream PDF embedded font (sfnt) at offset 0xA25D 16804 bytes
font_03_sfnt_off0000b972.bin
1a4cfafc3827bae90c0f019b3086f85653925a547e87acffdb25d3a8eea60eea
pdf-font-stream PDF embedded font (sfnt) at offset 0xB972 6192 bytes