Malicious PDF — malware analysis report

Static analysis result for SHA-256 2caa20961b0a1ea7…

MALICIOUS

PDF

60.9 KB Created: 2020-08-03 19:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f5d5c2aa1885917ec1ac4f46c3a78e2 SHA-1: 5831bb909d57d1c964fc296b22f4a9d28508f20f SHA-256: 2caa20961b0a1ea7cb080d98d79214b175b1bd9b32bd979f14679ef9d518381c
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive title "Namaz ka tarika pdf in urdu" to entice users. It embeds multiple links, with one critical heuristic identifying a link to a known malicious redirector at `ttraff.ru`. This redirector is likely used to funnel victims to further malicious content. The file also contains a large number of embedded links, many pointing to Shopify, which is characteristic of SEO link farm abuse.

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/pify?keyword=namaz+ka+tarika+pdf+in+urdu
    • http://files.seychellesbirdrecordscommittee.com/uploads/1/3/1/3/131379183/3769002.pdf
    • http://files.surrenderedtochrist.org/uploads/1/3/2/6/132681656/wulegi.pdf
    • http://files.shippensburghistoricalsociety.org/uploads/1/3/2/6/132683137/6133606.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/45534116593.pdf
    • https://cdn.shopify.com/s/files/1/0432/5595/5619/files/winefuwazawoje.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/79257371661.pdf
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/7314249457.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/dejunukumawovilaledite.pdf
    • https://cdn.shopify.com/s/files/1/0436/4782/8133/files/56890790625.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/lagumanulekevugarumig.pdf
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/65819208078.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3039/files/28139144725.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/25229550995.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/84559023717.pdf
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/rofiriraze.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9558/files/58647979695.pdf
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/34988921231.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000aa1b.bin
64a8fc966cf70f488ba67ef9f0baa0b2ec04701be385d10bef26360ac34b1874		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAA1B 25692 bytes
font_00_sfnt_off00006b71.bin
6fac1f39b5ebb4c599a0ee00f7c70a8f046ad6eaf5dc2be6a263a7496ae67467		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B71 3312 bytes
font_01_sfnt_off0000773b.bin
dd2dd14c154c40522fce38cf443a783db407b87ed0e438e60a53574610fc8ba9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x773B 4712 bytes
font_02_sfnt_off00008723.bin
76a41aca69045b31d8816c4f42833f7c5545ed433f1a250ad70517374ff17ce2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8723 10240 bytes
font_04_sfnt_off0000d7a2.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A2 4324 bytes

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