Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b41893d58f2f4e2…

MALICIOUS

PDF

36.0 KB Created: 2020-08-17 02:31:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7a206ec5919cc75f6b30b2512442e8d SHA-1: 4fa4b36130de46713a34960f0cd918023efc4f7c SHA-256: 2b41893d58f2f4e236ee979e0a4313ce14376529f6f28a437ab2855077907dcf
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a weather report. The document also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on cdn.shopify.com. The presence of a 'download button' heuristic further suggests a deceptive workflow intended to trick the user into clicking the malicious link.

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=ongole+weather+report+for+15+days
    • http://files.jacklaketrails.com/uploads/1/3/0/7/130738667/bebefumura_gemulorepixerav_bigotesuwupabol.pdf
    • http://vamum.amirzaheri.com/uploads/1/3/1/4/131438177/dumaxabe.pdf
    • http://rovivu.chiropractorroyaloakmi.com/uploads/1/3/2/7/132740505/mexesubigifeni_bafapesodad_jenil_manelefuva.pdf
    • http://fufina.jagpetroleum.com/uploads/1/3/1/6/131636832/d844c79ffce.pdf
    • https://cdn.shopify.com/s/files/1/0430/9339/3557/files/viwozisixoterodo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/lazesugotumomikududakalor.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/kenmore_self_cleaning_oven.pdf
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/53331636105.pdf
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/45261972860.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/wividafu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/80083059904.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/dogokapunubezuna.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/zifajeladapabodiwe.pdf
    • https://cdn.shopify.com/s/files/1/0430/6904/6935/files/juvog.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_off00004ee5.bin
31a8f8943c3b54326c201e5b2d0b4dc59893efecd427ca95124e53dbff34cde8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE5 5700 bytes
font_01_sfnt_off00006264.bin
cdc743c69fcccee798f897ef4edc57ed4914ed96a289a44d50c89e2184908272
pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 9584 bytes