Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce7e81b3dbf5977…

MALICIOUS

PDF

51.2 KB Created: 2020-08-05 10:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c4d129f85f4529bd4c324432556e311 SHA-1: 3c9fd3c99442caf03ad42c522d202afb749cdf52 SHA-256: fce7e81b3dbf5977c1ed3ab4fed2918408a69c715546fae41b99f916d168db16
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the lure text 'Antonyms meaning in urdu pdf' and the redirector URL, suggesting a social engineering tactic to entice users to click the links.

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.com/pify?keyword=antonyms+meaning+in+urdu+pdf
    • http://files.northlimeorders.net/uploads/1/3/2/7/132740327/503271.pdf
    • http://vawifekex.leisurewatercraft.com/uploads/1/3/1/0/131070450/5121651.pdf
    • http://xininid.filtod.com/uploads/1/3/1/3/131383791/3123778.pdf
    • http://files.destinationdesignreunion.com/uploads/1/3/1/3/131379540/5c3f34c.pdf
    • http://files.zainsattar.com/uploads/1/3/1/3/131380292/pubakoratut_zivezolo_pumuzab.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/juwiwile.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/wezetokaduzizowiran.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/10758866023.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/kyocera_phone_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/24642071051.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/76904958597.pdf
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/99274394400.pdf
    • https://cdn.shopify.com/s/files/1/0433/7546/0517/files/poxukukapa.pdf
    • https://cdn.shopify.com/s/files/1/0440/4841/6933/files/82966981497.pdf
    • https://cdn.shopify.com/s/files/1/0437/3164/8661/files/zofajadijuxafebow.pdf
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/zorin.pdf
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/39305204165.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
stream_005_off00008e24.bin
7da3310451a0c22898383cb37637a3de3c95cfe31168227b5e946909df88c74f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8E24 27308 bytes
font_00_sfnt_off00005507.bin
1f082f540bbb2dde25f035daefee3b0cc24b798501980ef678c8cfe107ae163a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5507 5420 bytes
font_01_sfnt_off0000676d.bin
261df907766e1ea073fef2f6bdc6f6f3e096fa0d181456c49a6d44432f6747a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x676D 12252 bytes