Malicious PDF — malware analysis report

Static analysis result for SHA-256 c000f29f0f64dcbb…

MALICIOUS

PDF

42.1 KB Created: 2020-08-08 18:49:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7601d34c733505b522dbd9b43e504d56 SHA-1: 43572ddd09b202ec171dc5e6cb88dd2ffce5c024 SHA-256: c000f29f0f64dcbb2f952a3fdba6313cd7de44364e544877475703dd4dc52240
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains embedded JavaScript and a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The document body and numerous embedded URLs, many pointing to Shopify domains, suggest a lure related to 'basic bookkeeping for dummies pdf' to entice clicks.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/pify?keyword=basic+bookkeeping+for+dummies+pdf
    • http://perujap.tricity-lotsforsale.com/uploads/1/3/0/7/130738531/ripisob_moziz_lofuselug.pdf
    • http://zodifap.glendorasleep.com/uploads/1/3/0/9/130969465/vedezuwovora.pdf
    • http://files.herbkauderer.com/uploads/1/3/1/4/131437402/9368229.pdf
    • http://files.huttvalleysportsawards.co.nz/uploads/1/3/1/4/131453170/kagumufedabereda.pdf
    • http://files.dalessandroscouting.com/uploads/1/3/0/7/130738875/4267193.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/elastic_change_field_type.pdf
    • https://cdn.shopify.com/s/files/1/0430/7841/8583/files/66775764208.pdf
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/waguve.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipipopiluniwewikojidil.pdf
    • https://cdn.shopify.com/s/files/1/0428/6103/5686/files/umbilical_hernia_repair_technique.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/5157547201.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/98981387642.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/wogagobetozufu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/warframe_beam_weapons.pdf
    • https://cdn.shopify.com/s/files/1/0437/9148/3042/files/16129612134.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/14946320928.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_off000064d2.bin
11e1cea53e13359bb8279f02c7bb609950a744c65a7103d157909476872e0980
pdf-font-stream PDF embedded font (sfnt) at offset 0x64D2 5696 bytes
font_01_sfnt_off00007820.bin
cab785b2b399d9b4c3bed6b673a024a36cc5d00ad37c149b6459e70af3da38c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7820 10392 bytes