Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22e98d500a8a0d6…

MALICIOUS

PDF

49.3 KB Created: 2020-08-10 08:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5ea29075faa41c0e8396179f70d1be4 SHA-1: 2c46af69505f707fa35e888bbb2b49f6d01dffb0 SHA-256: d22e98d500a8a0d6409585bd7273f6754d74539b1ce4c58b3d4b327cbd973ab6
160 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=cctv+camera+system+design+pdf', indicating a lure to download a PDF. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may be intended to trick the user into providing a password for an archive, likely to bypass gateway security.

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=cctv+camera+system+design+pdf
    • http://kefemu.nicolereddingtonart.com/uploads/1/3/0/8/130873995/3173651.pdf
    • http://files.neokymamessinias.org/uploads/1/3/1/3/131383251/wixewipozuj.pdf
    • http://files.debratidball.com/uploads/1/3/1/8/131871698/gezisenoxijuz.pdf
    • http://files.elcmilford.com/uploads/1/3/1/4/131482988/jodiponimuzateribog.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/super_paper_mario_wii_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/15138334831.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/2199259709.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5812/files/kiss_and_tell_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/vagidosir.pdf
    • https://cdn.shopify.com/s/files/1/0440/3340/9174/files/microsoft_company_introduction.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/synonyms_antonyms_words_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/5513/7447/files/aerodynamic_aviation.pdf
    • https://cdn.shopify.com/s/files/1/0448/0552/1559/files/definition_of_biogeography.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/blender_game_engine_python_scripts.pdf
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/65402749306.pdf
    • https://cdn.shopify.com/s/files/1/0436/9101/6347/files/anna_karenina_bangla_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/sijinorosoxozutafebosidig.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_off0000829e.bin
dd9054947bce1fb6e650d0bed4450642518acea83e3d365a5938ad7ac63723a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x829E 5512 bytes
font_01_sfnt_off00009556.bin
cda63d15542a9534ff1f03356def9263ab86fec66fa2352075fa23abd26e6af3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9556 10088 bytes