Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e443e7e34072d32…

MALICIOUS

PDF

51.9 KB Created: 2020-08-18 15:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a30cd39427677e7f126a662d89189bd1 SHA-1: edb98d87071dee78778fc47d753b7fe456b17a16 SHA-256: 4e443e7e34072d32edf721b5f892ae52fa86a7349e7f4b9792610de8be0b614b
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Google play store for android phones' and the malicious URL itself, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on shopify.com, likely to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=google+play+store++for+android+phones
    • http://dekoloxi.cyclebavaria.com/uploads/1/3/1/3/131379552/5590668.pdf
    • http://files.finalfinishdetailing.com/uploads/1/3/2/7/132710655/levin_linebedanelu_vidaki_vukadidi.pdf
    • http://files.calvertart.com/uploads/1/3/2/6/132682640/rimowivovorapujuba.pdf
    • http://files.omninsw.waggamatters.com/uploads/1/3/1/4/131483108/folubakilem.pdf
    • http://files.joshuabgood.com/uploads/1/3/0/8/130874524/kujakuduvunaj_gikadafufo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/89182568797.pdf
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/world_economic_forum_4th_industrial_revolution.pdf
    • https://cdn.shopify.com/s/files/1/0432/3924/3931/files/28633134861.pdf
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/vozimeto.pdf
    • https://cdn.shopify.com/s/files/1/0438/4335/4781/files/slater_s_rule_practice_problems.pdf
    • https://cdn.shopify.com/s/files/1/0435/2635/7143/files/suxibokowudotupoduromedig.pdf
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/59316651286.pdf
    • https://cdn.shopify.com/s/files/1/0437/5710/9399/files/capitalisme_industriel.pdf
    • https://cdn.shopify.com/s/files/1/0447/9637/9285/files/rodaxapelewebukigimiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/42600393549.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/69680298661.pdf
    • https://cdn.shopify.com/s/files/1/0437/7359/1701/files/jogukojabit.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_off00007ec3.bin
e6d0cf072ef960838e49826c174f550352f5f179136d7bddb60e8d6c852a0d19
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC3 5224 bytes
font_01_sfnt_off0000908b.bin
3876d3e3dcd71def611c0cc2aa35ac8a05b783975130ca31738655db4f5258aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x908B 10472 bytes
font_02_sfnt_off0000b469.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB469 4324 bytes