Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4f45ca77a2e8f5…

MALICIOUS

PDF

55.2 KB Created: 2020-07-27 12:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0d202f736f41f699025f1391c05a989 SHA-1: ed3e88eda74481f614a4cdb5883a2b6147935ff6 SHA-256: ed4f45ca77a2e8f58d1428677dd10483940f742cd4b9a929defb0d0a093d9f58
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it features a link farm with numerous external PDF links, many hosted on Shopify, suggesting an attempt to obscure the true malicious destination. The document body, though heavily obfuscated, contains text related to 'online form' and 'account will be terminated', reinforcing the lure for a phishing or scam attempt.

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.cc/pify?keyword=bsphcl.+bih.+nic.+in+online+form
    • http://files.joeyessmaracing.com/uploads/1/3/2/7/132741029/10833.pdf
    • http://files.lindenweitz.com/uploads/1/3/1/4/131483371/ginepisijaje.pdf
    • http://files.kiddylinguistics.com/uploads/1/3/1/6/131606694/7998542.pdf
    • http://files.maarc.ca/uploads/1/3/1/4/131409574/d775000fe5fe9b1.pdf
    • https://cdn.shopify.com/s/files/1/0435/6590/8123/files/famawomawogotibagitobizob.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/bojavunibalimulewuxoxodi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6296/5912/files/xudugosuzadasixopufir.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/65591596740.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/vodefasat.pdf
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/sifekekedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/fetugagab.pdf
    • https://cdn.shopify.com/s/files/1/0433/2525/9944/files/xuribelopifenuwurutebur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/20608276570.pdf
    • https://cdn.shopify.com/s/files/1/0429/0484/6503/files/91704496331.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/59548619948.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/rowefuvifu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/39019252969.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_off00007d82.bin
aa438f2cd44f2b6d953294d12627f635f55fcf19b8e9c4601e9ca8e19cd59e63
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D82 4972 bytes
font_01_sfnt_off00008e27.bin
fd94f3e7de92fd49d10692900b4c4334fbb194c3ad88ede896642ab07e9dc8df
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E27 14664 bytes
font_02_sfnt_off0000bc76.bin
87146f57fc183ce70059141499ff1f2a8159a6c850f17f6dce023b4a0e425db7
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC76 4972 bytes