Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0bebe3e580ab450…

MALICIOUS

PDF

61.9 KB Created: 2020-08-03 01:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83f89df2ee95c97132fbf8e102fce777 SHA-1: 2a01f620481f6c624478fc54b1250bcc74fc3bd2 SHA-256: d0bebe3e580ab450ec3b1a13059674e74fb4022069d8b8b359368748cd5d23bf
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a malicious redirector, ttraff.com, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains references to 'Discord' and 'urgent action', suggesting a social engineering lure to trick users into clicking the malicious link. The presence of a malicious redirector and a link farm indicates a campaign focused on driving traffic to potentially harmful sites.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=discord+how+to+center+text
    • http://files.shellysmallauthor.com/uploads/1/3/1/6/131607404/nosaxoresaveribov.pdf
    • http://files.redmondacademy.org/uploads/1/3/0/7/130739802/zosig-duguritezuzamuk-mexutula.pdf
    • http://files.bencoga.com/uploads/1/3/1/3/131379639/lebawup.pdf
    • http://files.rodanthesurfshop.com/uploads/1/3/2/6/132680853/xusid.pdf
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/sumakomolarulotanagolin.pdf
    • https://cdn.shopify.com/s/files/1/0433/9479/3630/files/99464550903.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/gukoluwinusamepoxu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/giluvijobavaxitaridupidu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4183/9514/files/46796224846.pdf
    • https://cdn.shopify.com/s/files/1/0436/0493/4814/files/33261893965.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/89608582242.pdf
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/xodenagogagigewujirinip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/miles_away_mmf.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/26020779598.pdf
    • https://cdn.shopify.com/s/files/1/0435/7334/6463/files/fundamentals_of_thermodynamics_6th_edition.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_off0000a97d.bin
1d512ae04cb984492d550becd22a0076245fe4e7f3a467ea18510ce93fc7edf4
pdf-font-stream PDF embedded font (sfnt) at offset 0xA97D 4944 bytes
font_01_sfnt_off0000ba5b.bin
40d7af315d0ad75d42bd58506a9f438992c3de380ff7d7884b1e1d42078007a1
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA5B 1924 bytes
font_02_sfnt_off0000c377.bin
9c8d55e2ba37c71fea091aa7bab29c6f8a6f15c806c224867af1fe5c65ef453c
pdf-font-stream PDF embedded font (sfnt) at offset 0xC377 11532 bytes