Malicious PDF — malware analysis report

Static analysis result for SHA-256 906dd6c694287b01…

MALICIOUS

PDF

44.8 KB Created: 2020-08-14 07:36:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6220ee5074a8746778ebb42c91d198c4 SHA-1: 91c12f7b2f4c6b3c9b5bfaec0f9be94491939ad2 SHA-256: 906dd6c694287b0167534d7abd9c0b3286d432955cd9eaa8541e0638ec41e0c9
148 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is associated with malicious activity. It also features a link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a 'download button' lure and a callback phone number lure indicates a social engineering tactic, likely to trick the user into downloading further malware or engaging in a scam. The document body, though heavily obfuscated, contains the malicious URL.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=games+not+using+play+store
    • http://files.karenglinski.com/uploads/1/3/1/4/131483002/zetekilegad.pdf
    • http://files.horseandriderconnection.org/uploads/1/3/1/0/131069781/9866865.pdf
    • http://files.celebrategreaterplymouth.org/uploads/1/3/2/7/132712558/pigefisop-zugizijototasa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/87463239408.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/71916660268.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/38070690620.pdf
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/17729862325.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/19243797413.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/1191210400.pdf
    • https://cdn.shopify.com/s/files/1/0452/5110/0829/files/brigade_fire_and_fury.pdf
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/96911824427.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/56725508977.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0610/files/99661321126.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/
    • https://cdn.shopify.com/s/files/1/0452/5110/0829/files/brigad

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e0b.bin
6ce52a282602cb1aac2f8294b840faefcd923d89301ff982919c46539b36dc0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0B 5272 bytes
font_01_sfnt_off00007ff7.bin
bd2d24b267fc8a5dcbfc1c9a4a03cc7612ae2c053506ab2d785b3081ce114247
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 10764 bytes