Malicious PDF — malware analysis report

Static analysis result for SHA-256 d896ef51e9cf5d6e…

MALICIOUS

PDF

37.0 KB Created: 2020-08-19 19:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 782aa26227f8e6454c5fa9d4800dac07 SHA-1: 5aceab4d2ad737d9fe02865335b72a338a3933d9 SHA-256: d896ef51e9cf5d6e3d5b631a689df4705d0748c395e68eb82f2018d339af6abf
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=solar+battery+charging+app'. This URL is likely used to lure users into a phishing or malware distribution scheme. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. 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.cc/pify?keyword=solar+battery+charging+app
    • http://files.ayatechnologies.net/uploads/1/3/0/8/130874295/70fb8b7f.pdf
    • http://lovul.lotusranch-homes.com/uploads/1/3/1/4/131454215/savupuvesun-jorunazan-muwamanija.pdf
    • http://files.ksdanceacademy.com/uploads/1/3/1/4/131437119/fitadazun-nokemepo.pdf
    • http://files.newdrofscifi.com/uploads/1/3/2/7/132712209/rutipowu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5736/4638/files/71082598891.pdf
    • https://cdn.shopify.com/s/files/1/0449/3869/0728/files/75143805783.pdf
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/57769103102.pdf
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/mitojoxevale.pdf
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/kimusipukumonek.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/papute.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/xujejiwewomezavixot.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/lajuwurut.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/37303366828.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_off0000538e.bin
0fed4ae43dc4b2d810dfa6238f1ae6062c69fd08cd1b70f81c07d8a5b5986561		 pdf-font-stream PDF embedded font (sfnt) at offset 0x538E 5360 bytes
font_01_sfnt_off000065c5.bin
d00aef0e6288e90501b0ff714ebbc52c53ebabcd93cec88a98312f4a013ac22a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C5 9908 bytes

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