Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
03-11-2023 22:27
Static task
static1
Behavioral task
behavioral1
Sample
6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe
Resource
win10v2004-20231020-en
General
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Target
6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe
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Size
5.6MB
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MD5
19d3547a8e659f89396922743f14fb63
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SHA1
9d21b68d0f82dd7388a7a3eaf56c0c5cd74fcae9
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SHA256
6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865
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SHA512
be6e871844f5548fa05dee1f5f6118f21984493f0fac8862cf87e288af0475006ba5c9a717dde4dd6fd3a59e30da3eb66905331cf11eac5b3a096e341f076213
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SSDEEP
98304:ziRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:mRm1syxacY48eda2TMpQdZ9nc+fyhNjG
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 708 is-KR9SF.tmp 2964 IsoBuster_1121.exe 4756 IsoBuster_1121.exe -
Loads dropped DLL 1 IoCs
pid Process 708 is-KR9SF.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 51.159.66.125 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 34 IoCs
description ioc Process File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TAJK3.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-PVRB7.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-V3CIC.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-AT38J.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-JLS9T.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-VCHTR.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-S1GPM.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-J7Q64.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-F4UJ7.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-KR0H1.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8P2MQ.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-QQ6UF.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-E3QTO.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-1CVTV.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-AV7BR.tmp is-KR9SF.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-737KH.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TOADC.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-A3SM9.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8H3NK.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-CPA0F.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-NG61F.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-1R0QI.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-RH9GA.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-SSOS4.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-2D411.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-1T6UJ.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-I436O.tmp is-KR9SF.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-O28BF.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3GSBN.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-9OIIE.tmp is-KR9SF.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-C9RV3.tmp is-KR9SF.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Runs net.exe
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Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 824 wrote to memory of 708 824 6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe 87 PID 824 wrote to memory of 708 824 6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe 87 PID 824 wrote to memory of 708 824 6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe 87 PID 708 wrote to memory of 2720 708 is-KR9SF.tmp 90 PID 708 wrote to memory of 2720 708 is-KR9SF.tmp 90 PID 708 wrote to memory of 2720 708 is-KR9SF.tmp 90 PID 708 wrote to memory of 2964 708 is-KR9SF.tmp 92 PID 708 wrote to memory of 2964 708 is-KR9SF.tmp 92 PID 708 wrote to memory of 2964 708 is-KR9SF.tmp 92 PID 2720 wrote to memory of 1040 2720 net.exe 93 PID 2720 wrote to memory of 1040 2720 net.exe 93 PID 2720 wrote to memory of 1040 2720 net.exe 93 PID 708 wrote to memory of 4756 708 is-KR9SF.tmp 94 PID 708 wrote to memory of 4756 708 is-KR9SF.tmp 94 PID 708 wrote to memory of 4756 708 is-KR9SF.tmp 94
Processes
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C:\Users\Admin\AppData\Local\Temp\6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe"C:\Users\Admin\AppData\Local\Temp\6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:824 -
C:\Users\Admin\AppData\Local\Temp\is-4AGMF.tmp\is-KR9SF.tmp"C:\Users\Admin\AppData\Local\Temp\is-4AGMF.tmp\is-KR9SF.tmp" /SL4 $401EA "C:\Users\Admin\AppData\Local\Temp\6115b751f411a65c090b1fa08a33f8019192b5aa455c4c81cc7141a8f2898865.exe" 5597940 1418242⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:708 -
C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 23⤵
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 24⤵PID:1040
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C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe"C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -i3⤵
- Executes dropped EXE
PID:2964
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C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe"C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -s3⤵
- Executes dropped EXE
PID:4756
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.4MB
MD581bf17b6bc712eec07e481349afc3dbc
SHA1eedecca191d3a6b1f16483714343fe1019d7fc62
SHA25681baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b
SHA5123aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171
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Filesize
4.4MB
MD581bf17b6bc712eec07e481349afc3dbc
SHA1eedecca191d3a6b1f16483714343fe1019d7fc62
SHA25681baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b
SHA5123aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171
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Filesize
4.4MB
MD581bf17b6bc712eec07e481349afc3dbc
SHA1eedecca191d3a6b1f16483714343fe1019d7fc62
SHA25681baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b
SHA5123aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171
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Filesize
642KB
MD5e57693101a63b1f934f462bc7a2ef093
SHA12748ea8c66b980f14c9ce36c1c3061e690cf3ce7
SHA25671267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f
SHA5123dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e
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Filesize
642KB
MD5e57693101a63b1f934f462bc7a2ef093
SHA12748ea8c66b980f14c9ce36c1c3061e690cf3ce7
SHA25671267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f
SHA5123dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63