Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1438ebf47d8ee34…

MALICIOUS

PDF

39.6 KB Created: 2020-08-06 17:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 793211cfee359c2ccabd17a306d7e3ce SHA-1: d95aba8a5b942e67ff3759346d82605412a2dc53 SHA-256: d1438ebf47d8ee34dcf7beee40f7e2562646afc57329bb983c709b7f3b33cfae
200 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=sbi+online+net+banking+application+form+pdf'. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify. The document also employs lures for password protection and MFA harvesting, suggesting a phishing or credential theft attempt. The presence of multiple embedded URLs and the nature of the redirector link indicate a delivery mechanism for malicious content or phishing pages.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.ru/pify?keyword=sbi+online+net+banking+application+form+pdf
    • http://files.m2bedbugs.com/uploads/1/3/0/8/130814605/f331b857382.pdf
    • http://files.awomansstory.net/uploads/1/3/2/8/132814138/xabesi_zixev_xiluruzuvuru_banotuvafavopo.pdf
    • http://files.arlingtonmsband.com/uploads/1/3/1/6/131606087/ddee7.pdf
    • http://files.loretoentrepreneurprofiles.com/uploads/1/3/1/4/131408056/tewivetelif.pdf
    • http://files.monsterboylives.com/uploads/1/3/1/4/131406885/xenipif-wafoxobes-reponubuzesij-movezopufiba.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/83879009917.pdf
    • https://cdn.shopify.com/s/files/1/0434/0006/9287/files/javascript_blank_file.pdf
    • https://cdn.shopify.com/s/files/1/0434/7772/9430/files/vujujatitedaletupij.pdf
    • https://cdn.shopify.com/s/files/1/0439/0299/2536/files/60281662263.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/vetaxokasusekatov.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/kidudamukaw.pdf
    • https://cdn.shopify.com/s/files/1/0436/7450/1285/files/63135305479.pdf
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/keginogijozamiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/37949270495.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/rotelip.pdf
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/89480588309.pdf
    • https://cdn.shopify.com/s/files/1/0433/0756/5214/files/life_and_death_in_shanghai_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/44766779391.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_off00005c97.bin
351eff92a3be320e9efcef0f2d79e6ce74b8e40566cdae49ed251c63c513ea8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C97 5604 bytes
font_01_sfnt_off00006f96.bin
bb9f02b5ba4c6ec79e71659da3f12c7a85d4bf7e3e76c2878880a580b938b3ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F96 9852 bytes

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