Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00472fff2b652c9…

MALICIOUS

PDF

46.0 KB Created: 2020-08-07 12:55:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e2a1367fbbc243b6adcc7cf7f3513a9 SHA-1: 17b8635b55214de941e656dfc40608cdaa079d1e SHA-256: f00472fff2b652c92e31323d4209092da6fb66bd7e975dd6db073afa119a50b6
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'hero carburetor tuning pdf' and includes the malicious URL, suggesting a lure to a malicious site. The presence of a link farm and the ML classifier firing further support malicious intent.

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.ru/pify?keyword=hero+carburetor+tuning+pdf
    • http://files.valleydjservice.com/uploads/1/3/1/4/131407625/65008b80fca0e5.pdf
    • http://files.greatmexgrillmesaverde.com/uploads/1/3/0/7/130740590/gigisijasiboma-xukitigisawukij-suwewo-vivunizutut.pdf
    • http://loduso.twohoursinthedark.net/uploads/1/3/1/0/131070450/ramebakojose.pdf
    • http://files.kathrynemyoung.com/uploads/1/3/1/0/131071076/porewuvofadaxa.pdf
    • https://cdn.shopify.com/s/files/1/0440/5533/0981/files/gerid.pdf
    • https://cdn.shopify.com/s/files/1/0444/3216/2982/files/architectural_record_july_2020.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/7278140059.pdf
    • https://cdn.shopify.com/s/files/1/0433/2273/6798/files/kuvapoziwonaxepew.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/88735270589.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/darelilujazadewatobuneku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/zabiporovuxudaverufusi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/jolomokeruxejuvolix.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/94399039769.pdf
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/40374451833.pdf
    • https://cdn.shopify.com/s/files/1/0437/5012/9813/files/rixatifelasodisonuzakega.pdf
    • https://cdn.shopify.com/s/files/1/0434/3326/3253/files/pokibumojole.pdf
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/61575489940.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_off0000698a.bin
5070c69bac7046b0584fab33e55193800266a17b2c8d3b83652c34a77b00fdc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x698A 5096 bytes
font_01_sfnt_off00007adf.bin
56ac8d16e8be442230b38679a8105dd5f24ded2a462178514b9642eb038c41a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADF 9852 bytes
font_02_sfnt_off00009c96.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C96 4324 bytes