Malicious PDF — malware analysis report

Static analysis result for SHA-256 959a6190d721c9bf…

MALICIOUS

PDF

43.8 KB Created: 2020-08-31 19:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b558d9f4bc201ee5234cb272a2b58ada SHA-1: 7f3742dfad0bcde59a7841deb201642fee4437cc SHA-256: 959a6190d721c9bf4f3b9ad22a5fd42e0c5575dae24555072bb0e6f65a2f7b55
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=vyprvpn+free+for+windows+xp'. Additionally, it exhibits characteristics of a password-protected archive lure, a technique often employed to bypass gateway security. The document body also contains numerous embedded URLs, including the primary malicious one, suggesting a phishing or social engineering 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.
  • 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.cc/pify?keyword=vyprvpn+free+for+windows+xp
    • https://static.usrfiles.com/ugd/739437_f0fdaaccad264fd7bacdf5345fb7e55f.pdf
    • https://static.usrfiles.com/ugd/0f5b72_4119cbf725c24769b4e5ef9a5fb0df00.pdf
    • https://static.usrfiles.com/ugd/353d00_dd47a51080c0402c89f3fd588facac41.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95936092566.pdf
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/weblogic_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/65132732699.pdf
    • https://cdn.shopify.com/s/files/1/0431/7626/3841/files/jazop.pdf
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/phoenix_bios_update.pdf
    • https://cdn.shopify.com/s/files/1/0439/9228/5342/files/fluoro_guided_hip_injection_technique.pdf
    • https://cdn.shopify.com/s/files/1/0433/1021/9432/files/povadokusijewepeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/twinkle_book_stories.pdf
    • https://cdn.shopify.com/s/files/1/0435/0830/1989/files/boluvezawa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/vinurife.pdf
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/3466266410.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/73627937253.pdf
    • https://cdn.shopify.com/s/files/1/0460/1357/9423/files/40295001132.pdf
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/john_deere_parts_diagrams.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/87057136543.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_off0000604a.bin
86006be87f688f796c58b9db70d0008d8cc98913fed3562c355d45d00aeb4883
pdf-font-stream PDF embedded font (sfnt) at offset 0x604A 4788 bytes
font_01_sfnt_off000070b4.bin
fa3044d7f3874b70eeafd7d5338464f019037bced9ea926639d88054b61eac2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x70B4 10384 bytes
font_02_sfnt_off00009413.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9413 4324 bytes