Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be453f008b7098c…

MALICIOUS

PDF

61.3 KB Created: 2020-08-29 21:16:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3004a02f88855da62843c71e7a108176 SHA-1: a1c86da14461b35a9bdf7d8198cf721b310bfa90 SHA-256: 3be453f008b7098c9c0c571a884f2bf4445c417d4e63d6a998b413519d182a45
202 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, which is a strong indicator of malicious activity. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a movie download. The presence of a password archive lure and MFA lure suggests a phishing or credential harvesting attempt. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a larger link farm, likely for SEO poisoning or distributing malicious links.

Heuristics 5

  • 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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/wix?keyword=yugantham+2012+movie+download
    • https://cdn.shopify.com/s/files/1/0465/5330/1150/files/muwitizakak.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3475/files/assembler_2_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/impulse_and_momentum_formula.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/tcs_repeated_aptitude_questions_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1376/6293/files/call_recording_app_for_android_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/modozeginefimilipaselu.pdf
    • https://static.usrfiles.com/ugd/33c377_25042038962d4895bed79eeccbed5d2e.pdf
    • https://static.usrfiles.com/ugd/ca300b_15adc37752564ecf960c6ee5a135a5d8.pdf
    • https://static.usrfiles.com/ugd/b8c837_43597533810547daa7ba4c2ad732d0a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d16334cbd504f07885b21c2dfbbde00.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f19f3f709c24505b265ac7d5dbada1b.pdf
    • https://static.usrfiles.com/ugd/934fc3_bfe8baf55c5f45c8bf93374e806461d1.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbcd355dca4b453e893ae47c2ec72677.pdf
    • https://static.usrfiles.com/ugd/0049ca_18a55c95bce54568a362da7a1a1720a9.pdf
    • https://static.usrfiles.com/ugd/22739b_d6a8af67c9e748ecbc6cae681ce8be9c.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_off0000b11b.bin
1f9536f160b033671c74177be69f67f033865150cb49458e8fb36b999ca2fba0
pdf-font-stream PDF embedded font (sfnt) at offset 0xB11B 5404 bytes
font_01_sfnt_off0000c374.bin
163762e7e87bc20b029a2eff62b2a9a4ed95628f9b55d35e41a3940d67dfb177
pdf-font-stream PDF embedded font (sfnt) at offset 0xC374 10880 bytes