Malicious PDF — malware analysis report

Static analysis result for SHA-256 d77189a0b12aea38…

MALICIOUS

PDF

60.0 KB Created: 2020-08-06 16:21:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78657c86f9beda1c79df900abf497e88 SHA-1: 770addcd4539b955fda2dc32d13529c2c425534e SHA-256: d77189a0b12aea38581f719cba78f3f829e88cdf80bc133004723e1ecb140811
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary link directing to a known malicious redirector at 'https://ttraff.com/pify?keyword=muhammad+the+greatest+ahmed+deedat+pdf'. This indicates a likely attempt to lead the user to malicious content or a phishing site. The presence of a large link farm, many pointing to benign Shopify URLs, suggests an SEO poisoning or link-farming tactic to obscure the malicious destination. 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.com/pify?keyword=muhammad+the+greatest+ahmed+deedat+pdf
    • http://files.herovision.ca/uploads/1/3/1/3/131378950/bed6d2c59.pdf
    • http://files.evalefkowitz.com/uploads/1/3/1/4/131406717/3332342.pdf
    • http://mivofagid.makwawamalawi.com/uploads/1/3/1/3/131380729/wabokanowejoko.pdf
    • https://cdn.shopify.com/s/files/1/0431/0122/5114/files/71206646484.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8136/files/random_last_name_generator.pdf
    • https://cdn.shopify.com/s/files/1/0438/1714/0386/files/stardew_valley_miner_vs_geologist.pdf
    • https://cdn.shopify.com/s/files/1/0428/2823/4908/files/nuril.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/airliner_world_june_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pekuxiwitijumowiviw.pdf
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/tidudojowunamimunugupe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67641838088.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/vepupagobarikerenibaroru.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000be28.bin
a6a3df2e33a37a6422710d23233612a3a53baeafed16eeb22d3fc60bf178184e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xBE28 21352 bytes
font_00_sfnt_off000079e8.bin
91278df3b0d19519c55800d392cbb6b702937e9cc12db46c5c2ed21b305a4a72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79E8 5428 bytes
font_01_sfnt_off00008c41.bin
aa176e02938e0827763910e6ca5aff55f405e2209b795b7e6a2109abe0df38d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C41 4736 bytes
font_02_sfnt_off00009b68.bin
3ea41f30b1f8832bdf7fe93a6ab8f2249d1e63371f15ff6f94f92ec8f25780e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B68 10092 bytes

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