Malicious PDF — malware analysis report

Static analysis result for SHA-256 226e23425f9723a2…

MALICIOUS

PDF

63.7 KB Created: 2020-09-03 04:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45578c53fe5d14122f8a1b070e697bb7 SHA-1: d7dd65781b6dcad71d870ea24a080dd8d2254db8 SHA-256: 226e23425f9723a24c6a6a0764a276be15f59f8ef9229398c1f3f597e476c83b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.me/wix?keyword=sniper+3d+assassin+pvp+guide', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to 'Sniper 3d assassin pvp guide' and the authoring tool 'wkhtmltopdf', suggesting a lure to disguise the malicious link farm.

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.me/wix?keyword=sniper+3d+assassin+pvp+guide
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/adobe_audition_cs3_portable_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/funawinujawodufudafes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2556/files/capitalism_socialism_mixed_economy.pdf
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/rumujejanaravejuduzamamiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2920/7957/files/wovekiragurode.pdf
    • https://static.usrfiles.com/ugd/b8c837_03b01481370a4643a8b046da02d235cd.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_bd5b8cd1ad254a93a5e3d8b31e7b0ab3.pdf
    • https://static.usrfiles.com/ugd/10e3af_e0fbbea3137246b6947925b74825b1e4.pdf
    • https://static.usrfiles.com/ugd/9c0842_2c8e6bf6798540259852c5752716a2ec.pdf
    • https://cdn.shopify.com/s/files/1/0431/4369/2445/files/marum.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/liste_adjectif_japonais.pdf
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/24376244299.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/luzozezofumafis.pdf
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/20983041218.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3205/files/bijli_song_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/4283984296.pdf
    • https://cdn.shopify.com/s/files/1/0447/0875/7657/files/centesimus_annus_juan_pablo_ii.pdf
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/xozajugikoxewesab.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/99136260716.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
font_00_sfnt_off00009c89.bin
bc0057a87e4eb3f5990a2b49f4fb6ca755f5686b6b83ed0215a9d89f3781df5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C89 5424 bytes
font_01_sfnt_off0000af03.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF03 1800 bytes
font_02_sfnt_off0000b791.bin
41e06be291a92146108a514474c09ca2a46b85bc8293ed1e0ebecd7c1c1e103f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB791 10344 bytes
font_03_sfnt_off0000daeb.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAEB 16312 bytes

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