Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ca40675561f806…

MALICIOUS

PDF

84.1 KB Created: 2020-08-02 13:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0ddbb4012671e1b713c26f8b56656a4 SHA-1: 4e60da29e655073057131622f0e1050a694ff671 SHA-256: b8ca40675561f806ddb965d1729d1d23fc64c3e15bfe86f30e25e9889f2e9fd2
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=minecraft+morphing+mod+1.+8+download'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0429/9754/7157/files/baldur_s_gate_apk.pdf'. The document body, though heavily obfuscated, contains text related to Minecraft mods and the malicious URL, suggesting a lure for users seeking game modifications.

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=minecraft+morphing+mod+1.+8+download
    • http://files.talisman48.com/uploads/1/3/1/1/131164236/zutomumu.pdf
    • http://files.fireflyfamilydaycare.com/uploads/1/3/0/7/130775431/2792638.pdf
    • http://files.kristynlanggundlach.com/uploads/1/3/2/6/132681579/zawakosiwojufokamumo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/baldur_s_gate_apk.pdf
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/45829989940.pdf
    • https://cdn.shopify.com/s/files/1/0438/1288/0544/files/nibejojurotar.pdf
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/rope_rescue_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdf
    • https://cdn.shopify.com/s/files/1/0431/3228/9178/files/logic_young_sinatra_welcome_to_forever_songs.pdf
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/sewoxunasafamuxeteredi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fufalelavajukunegaxiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5271/files/nozozaxowoluralulelep.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/82835242592.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/xuxifamajilowimexisil.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/roxipoxizenefosapis.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/vopujumomomobimefeturugo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e135.bin
e14f0a3bfbe34b32547e042f0de54c6a5a87ca26f06692cd95dae2c74b6d1eb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE135 5768 bytes
font_01_sfnt_off0000f4d3.bin
fc555f372cceb92d49c4d8f6f0cbecdfe68fd679c88d3daeb2f4f93e83562cd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D3 2888 bytes
font_02_sfnt_off000100c2.bin
b23c7ff1c56eea1f4b137a87404207882269f22a113b36e4771be05914eaec89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100C2 14072 bytes
font_03_sfnt_off00012d5e.bin
ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D5E 16092 bytes

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