Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6de528064773de7…

MALICIOUS

PDF

38.2 KB Created: 2020-08-14 08:51:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8a9464fac680653c48bae7d35193689 SHA-1: 5db6a6d3ad2dcd0291c596dbf4f88d6c0bb30e6a SHA-256: e6de528064773de7097d5d9440ca5711ccbafbc233b8458f68ebebfe8978dec7
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ariston+built+in+oven+user+manual'. This URL is presented within the document body, disguised as a user manual. The presence of a link farm heuristic further suggests a malicious intent to distribute links. While no scripts were extracted, the document structure and the malicious redirector strongly indicate a phishing or malware delivery attempt.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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.cc/pify?keyword=ariston+built+in+oven+user+manual
    • http://luvewer.curlyhorsevermont.com/uploads/1/3/0/7/130776131/vatunosogovudo.pdf
    • http://files.wolterfamily.net/uploads/1/3/1/4/131453733/purose-gekovidi-fejiwikonojefe-xufudevepakopa.pdf
    • http://wurazibe.walkersvillehistoricalsociety.org/uploads/1/3/1/3/131383329/retafazakali.pdf
    • https://cdn.shopify.com/s/files/1/0448/0339/1645/files/amortizacion_de_prestamos.pdf
    • https://cdn.shopify.com/s/files/1/0441/1208/5144/files/bevedudomimamesupesuki.pdf
    • https://cdn.shopify.com/s/files/1/0428/4973/0727/files/26373619685.pdf
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/python_replace_string.pdf
    • https://cdn.shopify.com/s/files/1/0432/9606/3652/files/67348203528.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/differential_algebraic_equation.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/almaty_city_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/69115548476.pdf
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/miwamemugiteti.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/55987323135.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/91204293258.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/ethical_appeal_definition.pdf
    • https://cdn.shopify.com/s/files/1/0434/7995/7669/files/k53_drivers_license_book.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_off00004af0.bin
366fba0219d61d226c5918821fd87a9b67634eb31584ddb89648ada65f0c76f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF0 4904 bytes
font_01_sfnt_off00005b74.bin
73350fd31c81a0837165220bf2c0557cfcc8420c87a6f4e200a869805aa7d899
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B74 9988 bytes
font_02_sfnt_off00007db0.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB0 4324 bytes