Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0470b84151f0e99…

MALICIOUS

PDF

95.8 KB Created: 2020-09-07 10:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8911904e1b7e1f539e6a9b901a3154c0 SHA-1: 8a518bdfd4d0e850bb40752ee0f158df419542e1 SHA-256: a0470b84151f0e9983a2091283d99013599dcc5746f60f023ac5aa39f654147e
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, disguised with a keyword related to a popular movie. This suggests a phishing or scam attempt to redirect users to malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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.ru/wix?keyword=superman+movie+2017
    • https://static.usrfiles.com/ugd/ede58b_acb7ff389d7449c4921e391018cbaacb.pdf
    • https://static.usrfiles.com/ugd/7dfe85_130f888f022c4056ac2c23cccfec4a5c.pdf
    • https://static.usrfiles.com/ugd/7be1cd_f7cdf5b4c6b247029f26602563512357.pdf
    • https://cdn.shopify.com/s/files/1/0434/2117/1864/files/fefaxolidajizasurejok.pdf
    • https://cdn.shopify.com/s/files/1/0431/2272/0924/files/najuzimukugarekevepu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6193/5261/files/ganav.pdf
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/david_byrne_envisioning_emotional_epistemological_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/5940/4191/files/variables_de_java.pdf
    • https://cdn.shopify.com/s/files/1/0432/8685/5840/files/uos_b._a_admission_form.pdf
    • https://static.usrfiles.com/ugd/158fb9_2974db5ca05a4c5f9e9b5434e292d020.pdf
    • https://static.usrfiles.com/ugd/bb10c5_db6eeb7de6324ed0bcfef1e4914c7bcd.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_d51c17016b43430b9346abf62e26806c.pdf
    • https://static.usrfiles.com/ugd/99afdc_56d2f22256884591a756ba787b324aa5.pdf
    • https://static.usrfiles.com/ugd/510691_da379c2b0525411aa330c06fd35e7c94.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_off00013b5d.bin
66d824fde06a3b13ca4b8cf1a44caf77ff94478695ecb98e01bf725112270bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B5D 5324 bytes
font_01_sfnt_off00014d71.bin
eb99ee8646452583d29445a5cab3678a7e199205e7661f3e02921dd2c51e0748		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D71 10824 bytes

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