Malicious PDF — malware analysis report

Static analysis result for SHA-256 8abc98a5e086eb7f…

MALICIOUS

PDF

44.1 KB Created: 2020-08-08 08:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ac44529b6df2afd96e3f5191f957d7b SHA-1: cd918b493a4781d707d6a3f2986e42c48785c421 SHA-256: 8abc98a5e086eb7f217d0c606b7afb8cf12c068abb21701a7a445aa7eaff5f73
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=%25C3%25A7eviriyle+%25C3%25B6%25C4%259Fren+%25C3%25B6zer+kiraz+pdf'. Additionally, a PDF link farm heuristic indicates the presence of numerous external links, many hosted on cdn.shopify.com. The document body, though partially corrupted, also contains the malicious redirector URL and several benign-looking PDF links, suggesting a lure to external content that ultimately leads to malicious infrastructure.

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.cc/pify?keyword=%25C3%25A7eviriyle+%25C3%25B6%25C4%259Fren+%25C3%25B6zer+kiraz+pdf
    • http://files.soulsistersphotography.com/uploads/1/3/0/8/130873893/275679.pdf
    • http://files.mobilecitynz.net/uploads/1/3/0/7/130738637/wilefewexar.pdf
    • http://files.lauramgray.com/uploads/1/3/1/4/131437377/e29b74781f9051.pdf
    • http://nizeledev.anamcarafolkmusic.com/uploads/1/3/2/8/132816202/f5dd3409b1d8.pdf
    • http://files.estherliano.nl/uploads/1/3/0/8/130874679/bimopoxedinew_vapakilovowasew_debipulub.pdf
    • https://cdn.shopify.com/s/files/1/0434/7537/0136/files/lisusirekafi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/xeluzebawaregujesogu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4094/5829/files/car_codes_for_thumb_drift.pdf
    • https://cdn.shopify.com/s/files/1/0439/0119/0299/files/vulomusexulizinepepusawez.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/49133271186.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/nobadovop.pdf
    • https://cdn.shopify.com/s/files/1/0439/4637/7374/files/sukupazivinotam.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/turob.pdf
    • https://cdn.shopify.com/s/files/1/0433/4813/2008/files/23775841213.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/the_ultimate_rpg_character_backstory_guide_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/xukoworirolimozug.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_off000068de.bin
3f1eed4f17f65682a8b32777fbcc343359561700c376f80458a4ab45d6a2e378
pdf-font-stream PDF embedded font (sfnt) at offset 0x68DE 5596 bytes
font_01_sfnt_off00007b8f.bin
cff71717df9aec6f205047056243cc33f90eae2a5f99fa6453402eefd091a50a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8F 11924 bytes