Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c0784c5568346ee…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 20:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af2e61e5b0c5d6fdba3c926b28df04f6 SHA-1: b3d138bfa63b0a7466b92b8cdbceab3e395f8892 SHA-256: 9c0784c5568346ee289571e893d96a7ab52c5f9231b642cac19d226b35fa58e5
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=alvida+mahe+ramzan+qawwali'. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, one of which is 'https://cdn.shopify.com/s/files/1/0435/3051/8679/files/73703550336.pdf'. The presence of the 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests that the document may be intended to trick users into believing they need a password to access content, a common tactic for social engineering.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/pify?keyword=alvida+mahe+ramzan+qawwali
    • http://files.sandyplainsequinecenter.com/uploads/1/3/1/3/131379820/rusogepanap-tiwut-manijawuse-juxufafabigewe.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8679/files/73703550336.pdf
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/difference_between_aliphatic_and_aromatic.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/mafibifenox.pdf
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/rarifudo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3144/files/jimojajadifalusedisi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/79984859565.pdf
    • https://cdn.shopify.com/s/files/1/0433/9692/3543/files/administracion_de_recursos_humanos_r._wayne_mondy_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/instant_notes_in_biochemistry.pdf
    • https://cdn.shopify.com/s/files/1/0441/0540/0472/files/59297765739.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/vuwapelogobimolapukoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/huawei_p9_plus_android_7._0.pdf
    • https://cdn.shopify.com/s/files/1/0432/5752/8478/files/maths_genie_forming_and_solving_equations_answers.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_off00006545.bin
4d4f0c2e20b43dfd77ca461d024ce0e698f44f9b3436d004400c0d3c7f729dc8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 5204 bytes
font_01_sfnt_off000076e7.bin
bf18efbe29efcc59aee78dcee5af644a507a1080e51ea23e9892e6729836f512
pdf-font-stream PDF embedded font (sfnt) at offset 0x76E7 15468 bytes
font_02_sfnt_off0000a7b7.bin
f15e3b727152f3daf70bb2c5abdea99451487b26c58a4d3ef6228cc978b57ae5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA7B7 3352 bytes