Malicious PDF — malware analysis report

Static analysis result for SHA-256 b769bec8d13e8215…

MALICIOUS

PDF

49.0 KB Created: 2020-04-12 03:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3aa0f55ea8d8122e47954a9ec6de3baf SHA-1: 76e34795656502a52f4bd943c9c44172b2bf5a41 SHA-256: b769bec8d13e82154a33a46fc3be1fe25d18ecdd0a63569add05077646618e1b
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a link farm, indicating a large number of external links. The document body, though heavily obfuscated, contains text related to a job posting ('Practicante ingenieria financiera medellin'). The presence of numerous external links, including one to 'roguerobotics.net' and several to 'simpletravelin.com' and similar domains, suggests a phishing or malware distribution attempt. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://roguerobotics.net/uploads/1/3/0/5/130540645/130540645.html#practicante+ingenieria+financiera+medellin
    • http://simpletravelin.com/uploads/1/3/0/6/130639446/3614394.pdf
    • http://humanizingtutoring.com/uploads/1/3/1/0/131069897/9468884.pdf
    • http://stemcqu.com/uploads/1/3/0/7/130738546/gofokelofepasi-kivefazorawa-suwolovepu.pdf
    • http://creativesolutionproperty.com/uploads/1/3/0/2/130289585/reruronibagoweredibo.pdf
    • http://jordanlosesweight.com/uploads/1/3/1/6/131607023/5136d3d515f1a.pdf
    • http://boonescrossingfarmmarket.com/uploads/1/3/1/4/131437753/5244dfc16e5d98.pdf
    • http://perthbiblechurch.com/uploads/1/3/1/1/131164472/sikow_wuborapexomitaj_luxoganeni.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_off00007e74.bin
cd85d46a965febffbabcdda3c5120e9693030ac74d8b0094409bae3fc6686eaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E74 9476 bytes
font_01_sfnt_off0000a0b3.bin
98eae9b279df2ce680d70a4d505064ea756df0c3cbb9cd39c5dd401b12048d18		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B3 16184 bytes

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