Malicious PDF — malware analysis report

Static analysis result for SHA-256 472582e91dec9f06…

MALICIOUS

PDF

58.5 KB Created: 2020-08-03 00:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b0724b03ade0178626d7cc48ecea02b SHA-1: 11d1e75081ec7a3020998b7a19b242c6ccf555bb SHA-256: 472582e91dec9f0637be97762629fef60a6343629823387b0df07a97cc3bdeaa
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body text, though partially corrupted, suggests a lure related to a game modification, likely to entice users to click the malicious link. The presence of numerous SEO-optimized PDF links further indicates a campaign to distribute malicious content.

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=how+to+make+veinminer+work+on+everything
    • http://files.centromedicolatinomonroe.com/uploads/1/3/1/6/131606069/vasowe.pdf
    • http://files.hallacroix.com/uploads/1/3/2/8/132815206/9895d6633924.pdf
    • http://files.image1st.org/uploads/1/3/0/7/130740522/5044104.pdf
    • http://files.wiedemannconsultants.com/uploads/1/3/0/7/130776257/18dc93628203.pdf
    • http://files.fengshuidiscovery.com/uploads/1/3/1/3/131398099/1e464246.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/41835589952.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/malinokoregotatag.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/bumajefawujug.pdf
    • https://cdn.shopify.com/s/files/1/0432/9101/7374/files/losujazazuxijixinebigu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/fulowazaberavunexu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4161/1173/files/22446960807.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/kugiwamusiduwenorusiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mozinetesabelenigifil.pdf
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/dr_chung_s_sat_math_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/2442/4853/files/gufubixawoxasematanon.pdf
    • https://cdn.shopify.com/s/files/1/0432/3039/6574/files/13488993094.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/gowekatoxonitanasux.pdf
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/flash_player_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/patitu.pdf
    • https://cdn.shopify.com/s/files/1/0436/6457/2569/files/dl380_g5_driver.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_off00008d18.bin
b81aadd4d1f389521d9b6ad9135abcad357d2baeb0845189bf5500b97bf619fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D18 4956 bytes
font_01_sfnt_off00009dd6.bin
5ddf5f005c9192855455ceac3e48ebc547d422e48f54f42c050b02d17ffa0b57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD6 15964 bytes
font_02_sfnt_off0000ce26.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE26 4324 bytes

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