Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7e2c31ac05b421…

MALICIOUS

PDF

51.6 KB Created: 2020-08-02 17:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 15dd23f2b28e6f946a2d538e9d626ecf SHA-1: f91a752bf2bce7c8d7b9edab396e8ff829894df2 SHA-256: ea7e2c31ac05b421a1be6c703218c767654b46f76c0473465014f2c3c2bb52a3
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=ice+bug+pokemon'. The document body, though heavily obfuscated, contains a reference to this URL. Additionally, a heuristic indicates a callback phishing lure, suggesting the user might be prompted to call a number in a deceptive context. The presence of numerous external links, including a link farm on Shopify, further supports a malicious intent to drive traffic to potentially harmful sites.

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.
  • 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
  • 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=ice+bug+pokemon
    • http://files.northernettessynchro.org/uploads/1/3/1/1/131164076/pafozuwagunezujanot.pdf
    • http://files.holsteinstatetheatre.com/uploads/1/3/1/3/131382583/fagudolapepiwe_toxesefopaseka_zuzeva_jikuga.pdf
    • http://files.nadinina.com/uploads/1/3/2/6/132682134/7864278.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/88937214836.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/zifugidiwobinajanus.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/gitad.pdf
    • https://cdn.shopify.com/s/files/1/0436/4930/2693/files/wujinimupaxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/red_cross_mission_statement.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/fivikenabus.pdf
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/luzatopigunilutowelobova.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3901/files/34788126945.pdf
    • https://cdn.shopify.com/s/files/1/0433/0615/6190/files/45388958187.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/8577007889.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/bopekezosokatexiv.pdf
    • https://cdn.shopify.com/s/files/1/0430/5525/1605/files/xetetutupakisilipufesow.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_off000076cd.bin
828bc91b7d058b8e3ebf164596aec363d199e420ee2f71b85bab19e0c283fbd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76CD 6556 bytes
font_01_sfnt_off00008db2.bin
458ccbc2aa0ba118499834b316a72d0bb3453f720581a234fee0f7bcf38e6c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB2 4880 bytes
font_02_sfnt_off00009e45.bin
78c40a08b0755fd11ff3d1ba77df0ca783ab43995ae70cd2dbe813cf28c8533c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E45 10168 bytes

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