Malicious PDF — malware analysis report

Static analysis result for SHA-256 9553251241a52265…

MALICIOUS

PDF

46.4 KB Created: 2020-08-02 18:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac4a5b942b4683cd0dacbe5bbad302c9 SHA-1: c420607b44702bd0214e88057820d1a87c6dabde SHA-256: 9553251241a52265ef89c9942dbf7845248e577f4f831858aba7a908b3097587
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=black+and+decker+iron+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on platforms like Shopify. The document body also contains text suggesting a callback lure, consistent with phishing or tech-support scams. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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=black+and+decker+iron+manual
    • http://files.plazaproduce.com/uploads/1/3/1/3/131383426/vizafazemudojopa.pdf
    • http://files.spiritofexcellenceworldwide.com/uploads/1/3/1/6/131637081/bagotupem.pdf
    • http://files.thewaterthieves.com/uploads/1/3/1/4/131406046/sajotebawemiban.pdf
    • http://files.aedpresearch.com/uploads/1/3/0/8/130815228/jakuliz-ruzerojep.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/44841073354.pdf
    • https://cdn.shopify.com/s/files/1/0440/9029/4437/files/wilozam.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/pebedukobekurigitejefu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/vasilologodasoludusojewo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7192/2591/files/zifeporujodixuzizelupixef.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/miwogukabafifi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2748/9183/files/wenufomalidavanaduv.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2316/files/xunavi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/6812911858.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_off000069a1.bin
239d3d98954282db35cfc555dda63ff2bc1c5c8f12fa5eb376d3dd16b73fa803
pdf-font-stream PDF embedded font (sfnt) at offset 0x69A1 4820 bytes
font_01_sfnt_off000079d5.bin
9bf93f7bb9cab970d37d2fad8a76a3f3fc8ccd71c2a5d2ee9fa4a004b6c0f42b
pdf-font-stream PDF embedded font (sfnt) at offset 0x79D5 10824 bytes
font_02_sfnt_off00009e97.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E97 4324 bytes