Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe6a255a5acdfb1…

MALICIOUS

PDF

50.8 KB Created: 2020-07-29 20:38:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 864c17be6ba309117818a3385a358cde SHA-1: 58b811be1bdec1817a3836fe98fe8406fdc99cab SHA-256: ffe6a255a5acdfb1debb27e27d1cc1c6bffefad8ee18b770009cdc727acded56
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure for downloading a PDF related to 'Carnatic wars'. The presence of a link farm heuristic further indicates an attempt to distribute or redirect to external content, likely for malicious purposes.

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=carnatic+wars+pdf+download
    • http://files.thebrainyblonde.com/uploads/1/3/0/9/130969960/vafokesa-lotowewik-juwepuru.pdf
    • http://files.mytridentestates.com/uploads/1/3/1/4/131406827/mepepawitugi.pdf
    • http://files.enotecaathena.com/uploads/1/3/1/8/131856646/sikifadeda.pdf
    • http://files.enotecaathena.com/uploads/1/3/1/8/13185
    • https://cdn.shopify.com/s/files/1/0437/6559/6321/files/xegizitavikukisur.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/zipaduwizuwapiwaruwiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/99876460759.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2470/files/54443012473.pdf
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/82670367868.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/56709095229.pdf
    • https://cdn.shopify.com/s/files/1/0437/1431/4405/files/wapatudifamavawenafu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0106/7166/files/80545653848.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/27356559535.pdf
    • https://cdn.shopify.com/s/files/1/0437/4695/1319/files/vijavagazegedodezozapi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/57912478016.pdf
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/93989452013.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_off00008ac1.bin
798e22e6bc371577cbfae93a102b4f5d1beee4144cb628dffdaf82f5470b06dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC1 4936 bytes
font_01_sfnt_off00009ba0.bin
acea092c920a4b6dc019d2dfc08f0f04f45b311baa14c02b6177d5fc132c7622
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA0 10040 bytes