Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d54b34790e2666…

MALICIOUS

PDF

35.6 KB Created: 2020-08-24 15:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00222884386c99187eb65a31e2be7b98 SHA-1: 39d6fb3e6af836f179bdcbc1442203ef842f8e75 SHA-256: 47d54b34790e266625ea43ad52d982a460fdea207a9130a3e7bb8a32232d7672
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains URLs that are likely part of this lure. The primary malicious URL identified is ttraff.com, which is used in conjunction with a keyword that suggests a fake manual or document. The presence of a 'Remote Support Lure' heuristic indicates the document may also attempt to trick users into installing remote access tools.

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=antronix+fra1-+1510+manual
    • http://rivitexot.hengjieai.com/uploads/1/3/1/1/131164312/b0f8e6.pdf
    • http://files.apcorx.org/uploads/1/3/0/7/130739740/rudegetetew.pdf
    • http://files.misfitspolitics.com/uploads/1/3/1/4/131453268/jodotar.pdf
    • https://cdn.shopify.com/s/files/1/0464/6404/1118/files/rhel_6_rpm_packages.pdf
    • https://cdn.shopify.com/s/files/1/0433/9784/1054/files/igcse_chemistry_hodder_education_answers.pdf
    • https://cdn.shopify.com/s/files/1/0447/1137/9097/files/aufenthaltstitel_verlngern_formular.pdf
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/40225996554.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/bekaxilakokojojerofone.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/noritisawijesataluwotonok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/future_dirty_sprite.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/26486495147.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/zujamimapazetonakebimuxod.pdf
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/4037889946.pdf
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/5181126283.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/83998595329.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_off00004dcd.bin
7369b8c2cafbe27641de5ceea0c62770b3729a19df606eb379cf0e604397b8e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x4DCD 5144 bytes
font_01_sfnt_off00005f45.bin
dbb34630a459bf5d9269372fe6b29c5d57134b52abe19a8f53ffa5375cb8ac3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F45 10232 bytes