Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec7a32868ca9b8c…

MALICIOUS

PDF

40.2 KB Created: 2020-08-12 19:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ef1e68a37977350561019a3e8fae08eb SHA-1: a5e1fb66e4be26117f3dcae8794504d30b4179a8 SHA-256: 1ec7a32868ca9b8c4664d66377b4189cd5acbd35271edfe3c1c2af63cf018665
170 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com' disguised as a utility for converting password-protected PDFs to editable Word documents. This aligns with a social engineering lure, likely to direct users to malicious content or a phishing site. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the suspicious nature of the primary URL, while 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be part of a multi-stage attack involving encrypted archives. The presence of a large number of external links, as indicated by 'PDF_SEO_LINK_FARM', further supports a malicious intent to distribute or redirect.

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
  • 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.com/wb?keyword=convert%20password%20protected%20pdf%20to%20editable%20word
    • http://files.jaimearon.com/uploads/1/3/2/3/132302859/danagitepuxevuguvi.pdf
    • http://files.lasvegasmetrohonorguard.com/uploads/1/3/0/7/130775871/6134112561d.pdf
    • http://files.redfishcottages.com/uploads/1/3/2/7/132740639/6671481.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/80253734359.pdf
    • https://cdn.shopify.com/s/files/1/0432/3105/1943/files/59538067365.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/1773126955.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/zopozawaxelupewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/beauty_and_the_beast_piano_solo_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/3761/4499/files/penjumlahan_dan_pengurangan_bilangan_biner.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/makeup_brushes_and_their_uses.pdf
    • https://cdn.shopify.com/s/files/1/0436/1424/0931/files/joel_osteen_become_a_better_you_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5322/6913/files/25453045704.pdf
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/bijeridi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5199/1719/files/5459342883.pdf
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/78506136143.pdf
    • https://cdn.shopify.com/s/files/1/0429/2060/7900/files/electrical_engineering_mcqs_book_by_handa_download.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_off00005f2a.bin
24c714892b486379a7bba99f7ee527a0512f3a7eda38121f8bc9c5dcd83954ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2A 5348 bytes
font_01_sfnt_off0000716e.bin
516ca4783a0cf626e9ce38b1f84745b445982f1ba43a4dff626208818ad46fbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 10120 bytes

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