Malicious PDF — malware analysis report

Static analysis result for SHA-256 e002837a0f2c0a0d…

MALICIOUS

PDF

38.2 KB Created: 2020-08-25 02:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41f25141a319fcec732a5341e745cd88 SHA-1: d6227d275f823f31ef1a555e0dfd4f295051a0b8 SHA-256: e002837a0f2c0a0d70938de97dbfb404e4a76f375cd91115fb91512fcf73ebe8
128 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a significant portion of which point to a redirector service known to host malicious content. One such link, 'https://ttraff.cc/pify?keyword=cherubim+and+seraphim+audio+songs', is explicitly flagged as malicious. The document also exhibits characteristics of a link farm, with many URLs pointing to PDF files hosted on various domains, including a suspicious one at 'http://files.kristygloverportfolio.com/uploads/1/3/2/6/132681771/xifegoranileva.pdf'. The presence of a 'download button' lure further supports the conclusion that this document is designed to trick users into navigating to malicious sites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cherubim+and+seraphim+audio+songs
    • http://files.kristygloverportfolio.com/uploads/1/3/2/6/132681771/xifegoranileva.pdf
    • https://cdn.shopify.com/s/files/1/0439/7904/7070/files/neoplasia_mieloproliferativa_cronica.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/shaving_cream_song_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/sijesibegogux.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/ranifolewetoluguz.pdf
    • https://cdn.shopify.com/s/files/1/0437/1732/9064/files/2010_jetta_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6459/8434/files/11149002657.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/butcher_shop_equipment_list.pdf
    • https://cdn.shopify.com/s/files/1/0441/0982/4152/files/alone_heart_sheet_music_piano.pdf
    • https://cdn.shopify.com/s/files/1/0462/4741/1866/files/91971588868.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/84469900783.pdf
    • https://cdn.shopify.com/s/files/1/0427/4195/6775/files/18103185730.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3846/files/championship_manager_2002_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/wekasafalaxemowo.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_off000056d8.bin
1b526aaef35a77a8faf955a18b6380548fa9908c3e5c1777acdd25444f948ba2
pdf-font-stream PDF embedded font (sfnt) at offset 0x56D8 5388 bytes
font_01_sfnt_off000068f0.bin
789ec67d38c35542a746eefd0ae223061068515c3a3e2fc5d9a550ee972d267e
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F0 10636 bytes