Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf1683ebeb9e270f…

MALICIOUS

PDF

66.2 KB Created: 2020-09-04 10:52:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6f40b59b53b3e9ef32e9378c2e4c105 SHA-1: b7334932ca94b7b0cd285044e44638f729c6eaf2 SHA-256: bf1683ebeb9e270f2491ee3d953bc312a14f8ea3d6637dc76f3f29051ead7fab
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.link'. The document body, though heavily obfuscated, contains a reference to 'Habibie ainun full movie hd' and the malicious URL, suggesting a lure for users seeking entertainment content. The file also exhibits a PDF link farm heuristic, with numerous links pointing to Shopify-hosted PDFs, likely to improve search engine ranking for the lure. The primary malicious IOC is the redirector URL, which is likely the first stage in a download or phishing chain.

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.link/wix?keyword=habibie+ainun+full+movie++hd
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/82340712586.pdf
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/75002875449.pdf
    • https://cdn.shopify.com/s/files/1/0450/9057/0405/files/airlift_bioreactor_design.pdf
    • https://static.usrfiles.com/ugd/b8c837_496c8eb36ba64e1a8770a0d32e39d74c.pdf
    • https://cdn.shopify.com/s/files/1/0437/6464/6042/files/mepalotexeruvajare.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/scanf_double_format_specifier.pdf
    • https://cdn.shopify.com/s/files/1/0428/7086/6076/files/bayer_monsanto_acquisition.pdf
    • https://cdn.shopify.com/s/files/1/0436/8593/7305/files/56963572315.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/5233535720.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7638/files/ximilunuluxujuxidakiwo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8310/files/arrayadapter_string_android_studio.pdf
    • https://cdn.shopify.com/s/files/1/0432/5077/8275/files/zuzubowufitukeforetadef.pdf
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/printable_english_grammar_exercises_with_answers.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a48d.bin
b9e0165f0b5c91a823a899a9297b2450d36deeaa9962bd62d33f25b2234fe0df
pdf-font-stream PDF embedded font (sfnt) at offset 0xA48D 4836 bytes
font_01_sfnt_off0000b4cc.bin
2d7bd7a73741f0ea0da40ab8e1e29c2ec784885d25dba8f914ebd8ee8b0a55cf
pdf-font-stream PDF embedded font (sfnt) at offset 0xB4CC 10804 bytes
font_02_sfnt_off0000d917.bin
b0627a486dcaeee434fe5ad07bf169d6615d29e40b70de469c6017e3e4f2a7cc
pdf-font-stream PDF embedded font (sfnt) at offset 0xD917 16100 bytes
font_03_sfnt_off0000edd6.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD6 4324 bytes