Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee7f96c4267d4cf…

MALICIOUS

PDF

43.2 KB Created: 2020-08-29 05:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cc949a341dcc82cbbfaacdc11c0ca82a SHA-1: f6d7fbc503a9ae32feb7e7fee1947d793128cd60 SHA-256: 9ee7f96c4267d4cfe9db13b3295741baaabd6ca811a9af039c2d07642c414359
128 Risk Score

Malware Insights

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

The PDF file contains a lure for a free game download, which is a common social engineering tactic. It includes a link to a redirector URL (ttraff.cc) that is flagged as malicious, and also hosts a large number of external PDF links, many of which point to Shopify domains. The presence of a visual download button further supports the social engineering aspect of this document. The primary intent appears to be directing users to malicious infrastructure under the guise of providing a game download.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/wix?keyword=need+for+speed+rivals+free+download
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/75625616839.pdf
    • https://cdn.shopify.com/s/files/1/0462/5789/7623/files/html_editor_windows_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/82404191195.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/33940475600.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/6299529738.pdf
    • https://cdn.shopify.com/s/files/1/0430/8336/6551/files/letebelobezudegu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9325/3526/files/60463097093.pdf
    • https://cdn.shopify.com/s/files/1/0434/6229/5714/files/job_interview_questions_and_answers_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3205/files/iphone_app_store_not_ing.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/kibegivetatadorababodafi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/lavupaxaw.pdf
    • https://cdn.shopify.com/s/files/1/0440/7453/3014/files/65736792289.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/horizontal_recyclerview_android_source_code.pdf
    • https://cdn.shopify.com/s/files/1/0460/8730/7428/files/bacilos_gram_positivos_en_orina.pdf
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/chloroform_is_nonpolar.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_off00005e4a.bin
2c889063e99eae3b0aea6367b7646983e94a2ecb3eb529509ab732414dd0cbff
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4A 4864 bytes
font_01_sfnt_off00006ef0.bin
b64a89627f2c532d7ec6d55fdfd41e7147309c5183424b3ffdbc0bbc1cc9b3e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF0 10180 bytes
font_02_sfnt_off000091e6.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x91E6 4324 bytes