Analysis
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max time kernel
162s -
max time network
158s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
29-06-2022 07:54
Static task
static1
Behavioral task
behavioral1
Sample
justificante de la transferencia.jar
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
justificante de la transferencia.jar
Resource
win10v2004-20220414-en
General
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Target
justificante de la transferencia.jar
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Size
633KB
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MD5
fbbe867f061bcb408da65984170ba74e
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SHA1
b590a6713dea76b60b5e4fd485e2b3359db656b5
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SHA256
95c7d2c1ca46c6e1ac08ad933faa802f8d71eaacaa78e8df96a2f487b3030d78
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SHA512
a4bc77de1b68ee3375e83a40a2a501355a82ca51d12beaf86a608953883770fdf0d023688b70665d7649289094d0851ce1b5898c00939c51858d7f91e71dede8
Malware Config
Extracted
vjw0rm
http://paypalintelsassistant.duia.ro:8153
Signatures
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Blocklisted process makes network request 14 IoCs
Processes:
WScript.exeflow pid process 4 588 WScript.exe 5 588 WScript.exe 6 588 WScript.exe 9 588 WScript.exe 10 588 WScript.exe 11 588 WScript.exe 13 588 WScript.exe 14 588 WScript.exe 15 588 WScript.exe 19 588 WScript.exe 22 588 WScript.exe 25 588 WScript.exe 29 588 WScript.exe 32 588 WScript.exe -
Drops startup file 2 IoCs
Processes:
WScript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EzNnZwZCES.js WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EzNnZwZCES.js WScript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
WScript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run WScript.exe Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\EzNnZwZCES.js\"" WScript.exe -
Drops file in System32 directory 1 IoCs
Processes:
java.exedescription ioc process File created C:\Windows\System32\test.txt java.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
javaw.exejava.exepid process 332 javaw.exe 1780 java.exe -
Suspicious use of WriteProcessMemory 42 IoCs
Processes:
java.exewscript.exejavaw.exejava.execmd.execmd.execmd.exedescription pid process target process PID 1960 wrote to memory of 964 1960 java.exe wscript.exe PID 1960 wrote to memory of 964 1960 java.exe wscript.exe PID 1960 wrote to memory of 964 1960 java.exe wscript.exe PID 964 wrote to memory of 588 964 wscript.exe WScript.exe PID 964 wrote to memory of 588 964 wscript.exe WScript.exe PID 964 wrote to memory of 588 964 wscript.exe WScript.exe PID 964 wrote to memory of 332 964 wscript.exe javaw.exe PID 964 wrote to memory of 332 964 wscript.exe javaw.exe PID 964 wrote to memory of 332 964 wscript.exe javaw.exe PID 332 wrote to memory of 1780 332 javaw.exe java.exe PID 332 wrote to memory of 1780 332 javaw.exe java.exe PID 332 wrote to memory of 1780 332 javaw.exe java.exe PID 332 wrote to memory of 1600 332 javaw.exe cmd.exe PID 332 wrote to memory of 1600 332 javaw.exe cmd.exe PID 332 wrote to memory of 1600 332 javaw.exe cmd.exe PID 1780 wrote to memory of 1016 1780 java.exe cmd.exe PID 1780 wrote to memory of 1016 1780 java.exe cmd.exe PID 1780 wrote to memory of 1016 1780 java.exe cmd.exe PID 1016 wrote to memory of 580 1016 cmd.exe cscript.exe PID 1016 wrote to memory of 580 1016 cmd.exe cscript.exe PID 1016 wrote to memory of 580 1016 cmd.exe cscript.exe PID 1600 wrote to memory of 1008 1600 cmd.exe cscript.exe PID 1600 wrote to memory of 1008 1600 cmd.exe cscript.exe PID 1600 wrote to memory of 1008 1600 cmd.exe cscript.exe PID 1780 wrote to memory of 1688 1780 java.exe cmd.exe PID 1780 wrote to memory of 1688 1780 java.exe cmd.exe PID 1780 wrote to memory of 1688 1780 java.exe cmd.exe PID 332 wrote to memory of 972 332 javaw.exe cmd.exe PID 332 wrote to memory of 972 332 javaw.exe cmd.exe PID 332 wrote to memory of 972 332 javaw.exe cmd.exe PID 1688 wrote to memory of 1768 1688 cmd.exe cscript.exe PID 1688 wrote to memory of 1768 1688 cmd.exe cscript.exe PID 1688 wrote to memory of 1768 1688 cmd.exe cscript.exe PID 1780 wrote to memory of 1872 1780 java.exe xcopy.exe PID 1780 wrote to memory of 1872 1780 java.exe xcopy.exe PID 1780 wrote to memory of 1872 1780 java.exe xcopy.exe PID 332 wrote to memory of 2004 332 javaw.exe xcopy.exe PID 332 wrote to memory of 2004 332 javaw.exe xcopy.exe PID 332 wrote to memory of 2004 332 javaw.exe xcopy.exe PID 1780 wrote to memory of 1348 1780 java.exe cmd.exe PID 1780 wrote to memory of 1348 1780 java.exe cmd.exe PID 1780 wrote to memory of 1348 1780 java.exe cmd.exe
Processes
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C:\Windows\system32\java.exejava -jar "C:\Users\Admin\AppData\Local\Temp\justificante de la transferencia.jar"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wscript.exewscript C:\Users\Admin\nekbnikfmf.js2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\EzNnZwZCES.js"3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
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C:\Program Files\Java\jre7\bin\javaw.exe"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\misfotr.txt"3⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files\Java\jre7\bin\java.exe"C:\Program Files\Java\jre7\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.8265727181294524425271145760539092.class4⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive4555004877700412263.vbs5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive4555004877700412263.vbs6⤵
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C:\Windows\system32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8234137651776324086.vbs5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8234137651776324086.vbs6⤵
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C:\Windows\system32\xcopy.exexcopy "C:\Program Files\Java\jre7" "C:\Users\Admin\AppData\Roaming\Oracle\" /e5⤵
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C:\Windows\system32\cmd.execmd.exe5⤵
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C:\Windows\system32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3385172011414537236.vbs4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3385172011414537236.vbs5⤵
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C:\Windows\system32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive5080827793365894929.vbs4⤵
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C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive5080827793365894929.vbs5⤵
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C:\Windows\system32\xcopy.exexcopy "C:\Program Files\Java\jre7" "C:\Users\Admin\AppData\Roaming\Oracle\" /e4⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Retrive3385172011414537236.vbsFilesize
276B
MD53bdfd33017806b85949b6faa7d4b98e4
SHA1f92844fee69ef98db6e68931adfaa9a0a0f8ce66
SHA2569da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
SHA512ae5e5686ae71edef53e71cd842cb6799e4383b9c238a5c361b81647efa128d2fedf3bf464997771b5b0c47a058fecae7829aeedcd098c80a11008581e5781429
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C:\Users\Admin\AppData\Local\Temp\Retrive4555004877700412263.vbsFilesize
276B
MD53bdfd33017806b85949b6faa7d4b98e4
SHA1f92844fee69ef98db6e68931adfaa9a0a0f8ce66
SHA2569da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
SHA512ae5e5686ae71edef53e71cd842cb6799e4383b9c238a5c361b81647efa128d2fedf3bf464997771b5b0c47a058fecae7829aeedcd098c80a11008581e5781429
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C:\Users\Admin\AppData\Local\Temp\Retrive5080827793365894929.vbsFilesize
281B
MD5a32c109297ed1ca155598cd295c26611
SHA1dc4a1fdbaad15ddd6fe22d3907c6b03727b71510
SHA25645bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
SHA51270372552dc86fe02ece9fe3b7721463f80be07a34126b2c75b41e30078cda9e90744c7d644df623f63d4fb985482e345b3351c4d3da873162152c67fc6ecc887
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C:\Users\Admin\AppData\Local\Temp\Retrive8234137651776324086.vbsFilesize
281B
MD5a32c109297ed1ca155598cd295c26611
SHA1dc4a1fdbaad15ddd6fe22d3907c6b03727b71510
SHA25645bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
SHA51270372552dc86fe02ece9fe3b7721463f80be07a34126b2c75b41e30078cda9e90744c7d644df623f63d4fb985482e345b3351c4d3da873162152c67fc6ecc887
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C:\Users\Admin\AppData\Local\Temp\_0.8265727181294524425271145760539092.classFilesize
241KB
MD5781fb531354d6f291f1ccab48da6d39f
SHA19ce4518ebcb5be6d1f0b5477fa00c26860fe9a68
SHA25697d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
SHA5123e6630f5feb4a3eb1dac7e9125ce14b1a2a45d7415cf44cea42bc51b2a9aa37169ee4a4c36c888c8f2696e7d6e298e2ad7b2f4c22868aaa5948210eb7db220d8
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C:\Users\Admin\AppData\Roaming\EzNnZwZCES.jsFilesize
15KB
MD51584eda3eb8888cd3b660006f8bb9ee3
SHA18010111a0cefff3eabf04573df573c209ddec12e
SHA2563e0ac4509b29caa5c3aaf489ca41fafdb4388a59c3e0d3f64211fe013f6d7f79
SHA512ec06fbc6c58077d373b4f4c72f407742f680a9790584c246f84fab3b373b39269762aa5c72c09c6391e794c89e8312f3e18e68462f923194865b5444c38e9fcc
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1083475884-596052423-1669053738-1000\83aa4cc77f591dfc2374580bbd95f6ba_206ac020-9434-4197-af4e-48c8ff9cae6cFilesize
45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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C:\Users\Admin\AppData\Roaming\misfotr.txtFilesize
479KB
MD50af2ffb0e3a810f556a0eef909a5ecc7
SHA1641fe60bfa8569a0a13dc9279ea1cafb5cb912ad
SHA2569d05feba177ac6b9433f0a28bf9e6ba9828f1621f625f7ca80009a1cf5b5374b
SHA512883f01a0d0c2ed6ada0dd3d2b4548d01b54f6cf4fcfd6a39f9a61511147fefc4ea8ad4392873fd54e4d7c1c04adc01c94bf99447ddfcde925340ae4ea409b1c9
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C:\Users\Admin\nekbnikfmf.jsFilesize
932KB
MD5d4eeb2910754c6361a251c9741c8a2dc
SHA14add534ede28add3d70ec8fa7432ef9524ec3280
SHA256cd76f0a5d341008b11d06eb3bc6ba912b246eba4d825b408963da1348ab2e9ff
SHA512ca35542b199874dfb88b6d50c6bc6a0760994e1fd7cfb02bef724a3048c1e0b85055b416c8e157608b08bbd58ea8644012e11d41bd6ccd774b61cc38a27c48ce
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memory/332-84-0x00000000024C0000-0x00000000054C0000-memory.dmpFilesize
48.0MB
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memory/332-70-0x0000000000000000-mapping.dmp
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memory/332-115-0x00000000024C0000-0x00000000054C0000-memory.dmpFilesize
48.0MB
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memory/580-103-0x0000000000000000-mapping.dmp
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memory/588-69-0x0000000000000000-mapping.dmp
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memory/964-65-0x0000000000000000-mapping.dmp
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memory/972-108-0x0000000000000000-mapping.dmp
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memory/1008-104-0x0000000000000000-mapping.dmp
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memory/1016-102-0x0000000000000000-mapping.dmp
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memory/1348-114-0x0000000000000000-mapping.dmp
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memory/1600-101-0x0000000000000000-mapping.dmp
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memory/1688-107-0x0000000000000000-mapping.dmp
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memory/1768-109-0x0000000000000000-mapping.dmp
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memory/1780-97-0x0000000002350000-0x0000000005350000-memory.dmpFilesize
48.0MB
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memory/1780-85-0x0000000000000000-mapping.dmp
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memory/1780-116-0x0000000002350000-0x0000000005350000-memory.dmpFilesize
48.0MB
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memory/1872-112-0x0000000000000000-mapping.dmp
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memory/1960-54-0x000007FEFB871000-0x000007FEFB873000-memory.dmpFilesize
8KB
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memory/1960-64-0x00000000021E0000-0x00000000051E0000-memory.dmpFilesize
48.0MB
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memory/2004-113-0x0000000000000000-mapping.dmp