Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ab78b661a5654f…

MALICIOUS

PDF

36.0 KB Created: 2020-09-02 02:49:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d08983812b8cb7364a3f2b4f60b277b SHA-1: 473739a9e4bff294a220753ce861564200c711f6 SHA-256: e3ab78b661a5654fdc3d8fd8dc568edd62101db00d5d1d7d6f5b30a722815ff2
180 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.me/wix?keyword=zmodo+1080p+outdoor+wifi+camera+manual'. Additionally, it exhibits a PDF link farm heuristic, with many links pointing to benign content, but the primary redirector is malicious. The document also explicitly requests sensitive recovery information, indicating a phishing or social engineering attempt. No scripts were extracted, but the presence of a malicious redirector and the lure for sensitive data strongly suggest a phishing attack.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=zmodo+1080p+outdoor+wifi+camera+manual
    • https://static.usrfiles.com/ugd/b8c837_5d850ccd029d4e1cb951f54a314fe7d0.pdf
    • https://static.usrfiles.com/ugd/5926b4_077e75109d7741c4a1762b16aac349f9.pdf
    • https://static.usrfiles.com/ugd/3c8574_86b967d67a53471ca70ac2c1f962fc8d.pdf
    • https://static.usrfiles.com/ugd/89c6ad_d9146d4e627e45e7ae5ac5e22c038557.pdf
    • https://static.usrfiles.com/ugd/b8c837_85b929d8dcab4a2486368884811edd8d.pdf
    • https://cdn.shopify.com/s/files/1/0439/1328/1691/files/schindler_s_list_guitar_music_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/5808/3493/files/pandas_remove_column.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdf
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/najojowajesuwoje.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/disadvantages_of_captive_insurance.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/free_mcx_technical_analysis_software.pdf
    • https://cdn.shopify.com/s/files/1/0435/4883/5992/files/dajawekovamegemug.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/characteristics_of_empirical_research.pdf
    • https://cdn.shopify.com/s/files/1/0439/0558/1211/files/2376966627.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/xokewakuzawezopopadidenek.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_off00004c93.bin
2017102badfcfe8983ecb007af9d8e97d6ba873f223007a0e6f8044938da2712
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C93 5560 bytes
font_01_sfnt_off00005f88.bin
f31d4259664aefa9563597fb70070a00a3d97c3d2a60d76ff4bd1108d61a5bd2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F88 10384 bytes