Malicious PDF — malware analysis report

Static analysis result for SHA-256 254ba5a62beb09e9…

MALICIOUS

PDF

48.6 KB Created: 2020-08-17 02:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 184a9bea211abdfa3f775be688a309b5 SHA-1: a956cb190f70940375a09ca8cf7d540ede6f8d8a SHA-256: 254ba5a62beb09e999b835638a1114de8f2ea206d6eae6f5e12f1cb68decc42f
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to an 'Android tablet for sale argos' and includes a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify domains, suggesting an attempt to distribute content or mask malicious activity. The presence of a remote-support tool lure indicates a potential pretext for further compromise or social engineering.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=android+tablet+for+sale+argos
    • http://files.techterryscholars.org/uploads/1/3/0/7/130739119/degez_xitiritenoxa_komuposib_wuzir.pdf
    • http://files.conditionorangepreparedness.com/uploads/1/3/0/8/130874330/kamokomepew.pdf
    • http://dapuva.drinessamanevich.com/uploads/1/3/1/0/131070604/tumirekofamak.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7599/files/77622549575.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/mudebop.pdf
    • https://cdn.shopify.com/s/files/1/0433/2306/4488/files/beats_solo_3_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/6909/5590/files/mapa_lineas_cercanias_madrid.pdf
    • https://cdn.shopify.com/s/files/1/0440/8085/7253/files/42090505184.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/german_learning_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/conclusion_for_lab_report_animal_tissues.pdf
    • https://cdn.shopify.com/s/files/1/0433/0287/9387/files/xupiwenozanaxidowerig.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/40277871633.pdf
    • https://cdn.shopify.com/s/files/1/0433/5812/6245/files/39964929737.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9497/files/fufotikufevaron.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_off000071a4.bin
280872f5e2a4d06328dcbecaf16eef836dfe285425b7588fa5cae199f6f8b6f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x71A4 4992 bytes
font_01_sfnt_off000082a5.bin
8036488602084eba3b35bf01ad9e95ab1780f8523e1878bfbee737b963410080
pdf-font-stream PDF embedded font (sfnt) at offset 0x82A5 10592 bytes
font_02_sfnt_off0000a6d7.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D7 4324 bytes