Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bba6d323f59bf3b…

MALICIOUS

PDF

42.0 KB Created: 2020-09-05 13:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d232a503cb5d40368edd155d3642d0f SHA-1: b6cd8c6c69868b4d7bec1e0bebc92c7d55abe6e0 SHA-256: 9bba6d323f59bf3b85d20858ccb24b0e18f97345a2adb4d8f5b4430134ffc53c
128 Risk Score

Malware Insights

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

The PDF contains a lure for downloading a game mod, which directs the user to the malicious URL ttraff.club. This URL is identified as a malicious redirector. The document also contains a large number of embedded links to other PDFs hosted on Shopify and static.usrfiles.com, suggesting a link farm or SEO poisoning tactic to drive traffic to the malicious redirector.

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.club/wix?keyword=game+android+mod+hack+offline
    • https://cdn.shopify.com/s/files/1/0429/5963/4585/files/93263626555.pdf
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/87083665565.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/gojoriwatabifoban.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdf
    • https://static.usrfiles.com/ugd/b8c837_b89d6a7b0aeb4f74a62d7157d893c49a.pdf
    • https://static.usrfiles.com/ugd/868401_3cc9ba7243be4593a7b010bdd528e03b.pdf
    • https://static.usrfiles.com/ugd/a891c0_32f89eb558164625b9e3abdca9bd4324.pdf
    • https://static.usrfiles.com/ugd/3aee12_bf04134115994787ad9f7e92132a5b20.pdf
    • https://static.usrfiles.com/ugd/7820d0_db0b135a97ed444fb6155b30dcb3b1df.pdf
    • https://static.usrfiles.com/ugd/b8c837_d66afe21cc00428597701760439c116a.pdf
    • https://static.usrfiles.com/ugd/ad2ade_def5877dc5d84c539cd3a6eb038486bd.pdf
    • https://static.usrfiles.com/ugd/b926a8_7aa0f2dffa6b4121bd5bcccad9d85c61.pdf
    • https://cdn.shopify.com/s/files/1/0432/9514/6139/files/57548065306.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7288/files/21500132748.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3591/files/blockchain_dns_firefox_android.pdf
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/zosonuzigibexubedume.pdf
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/guruwajevavolikipub.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065a2.bin
d0a0a5f71088087c891abd841d5e659f9392a3fe63c5295d7988d3f74104705d
pdf-font-stream PDF embedded font (sfnt) at offset 0x65A2 5176 bytes
font_01_sfnt_off00007718.bin
37e1c3d10763b6c7fc7a038465dc7771ea4a1d5c10a48fb7f14fdd3416fdce8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7718 10360 bytes