Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ea94912a65d14c…

MALICIOUS

PDF

49.8 KB Created: 2020-08-09 21:13:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 850af069462fecadca7b40e4f754a96d SHA-1: aeab87fb25c40cd024e94bfc39ad9ff4e5173614 SHA-256: d2ea94912a65d14cc104b7736be994dc60bd1a5271b355a6af8603638cc804b2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=google+sheets+functions+pdf'. This URL is presented within the document body, suggesting a lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is the most significant IOC.

Heuristics 3

  • 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 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=google+sheets+functions+pdf
    • http://files.hullabaloomusicfestival.com/uploads/1/3/2/7/132740415/zikomigop.pdf
    • http://files.lite-box-electronics.com/uploads/1/3/1/4/131406149/3365420.pdf
    • http://kejusidip.helenmerlinafatir.com/uploads/1/3/2/7/132712615/1742156.pdf
    • http://files.kairestaurant.net/uploads/1/3/0/8/130813317/guzabanagag.pdf
    • http://files.vflhabersham.com/uploads/1/3/1/3/131380342/60c967e465090.pdf
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/korg_kross_2_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/english_grammar_practice_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/vozedurevowivawiwivep.pdf
    • https://cdn.shopify.com/s/files/1/0435/2684/8661/files/48597044055.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/lulonosetinugo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdf
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/31077435666.pdf
    • https://cdn.shopify.com/s/files/1/0437/8732/1505/files/11847431161.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/kipedelusiponeso.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/45373123945.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a88.bin
afc0ebebfc4cd82aa5c347a045c0441a586f9075a905f6356c060cc0b232ab50
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A88 5144 bytes
font_01_sfnt_off00008c0c.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0C 1800 bytes
font_02_sfnt_off00009499.bin
b2deeeea01281b03c63e87a45d829adba565c611b165589672c3106da975ff59
pdf-font-stream PDF embedded font (sfnt) at offset 0x9499 11032 bytes