Analysis
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max time kernel
144s -
max time network
133s -
platform
windows10-1703_x64 -
resource
win10-20231023-en -
resource tags
arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system -
submitted
04-11-2023 16:53
Static task
static1
Behavioral task
behavioral1
Sample
d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe
Resource
win10-20231023-en
General
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Target
d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe
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Size
5.6MB
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MD5
6437435e39b1eb6e321267067e0ee051
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SHA1
26b5dcdad224baee0c7963212f60dbecd0f0556a
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SHA256
d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2
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SHA512
66dfe93209213f18dab0e9e206af98790d19e2874b23605e214ec54368c65fd375b93b5bd20bf776da4f191a1cff350961e57ecbca00ea2c29cbfec9e405f92d
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SSDEEP
98304:uiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:bRm1syxacY48eda2TMpQdZ9nc+fyhNjG
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2900 is-FKR3F.tmp 5072 IsoBuster_1121.exe 3068 IsoBuster_1121.exe -
Loads dropped DLL 1 IoCs
pid Process 2900 is-FKR3F.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\Plugins\is-U6VJ8.tmp is-FKR3F.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-MD1FK.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3N3VB.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UV8TH.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-C3JI6.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-63ATD.tmp is-FKR3F.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-0VR07.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-KQTUM.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-L093P.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-KJ5IQ.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-VP7LE.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-DDH9L.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-7G0F2.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-NPRUQ.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-AANSU.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-PS082.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-UU5QM.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-3QN9N.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-9738T.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TLKFJ.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-1CKA7.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-SQ8RP.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3V3L6.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-0F5A9.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-EM78B.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-QHU8N.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-1K7AO.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-K7O7S.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-CTPT2.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-EMFJ0.tmp is-FKR3F.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-46TER.tmp is-FKR3F.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 2252 wrote to memory of 2900 2252 d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe 71 PID 2252 wrote to memory of 2900 2252 d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe 71 PID 2252 wrote to memory of 2900 2252 d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe 71 PID 2900 wrote to memory of 1464 2900 is-FKR3F.tmp 72 PID 2900 wrote to memory of 1464 2900 is-FKR3F.tmp 72 PID 2900 wrote to memory of 1464 2900 is-FKR3F.tmp 72 PID 2900 wrote to memory of 5072 2900 is-FKR3F.tmp 74 PID 2900 wrote to memory of 5072 2900 is-FKR3F.tmp 74 PID 2900 wrote to memory of 5072 2900 is-FKR3F.tmp 74 PID 1464 wrote to memory of 3896 1464 net.exe 75 PID 1464 wrote to memory of 3896 1464 net.exe 75 PID 1464 wrote to memory of 3896 1464 net.exe 75 PID 2900 wrote to memory of 3068 2900 is-FKR3F.tmp 76 PID 2900 wrote to memory of 3068 2900 is-FKR3F.tmp 76 PID 2900 wrote to memory of 3068 2900 is-FKR3F.tmp 76
Processes
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C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe"C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp"C:\Users\Admin\AppData\Local\Temp\is-VGSTJ.tmp\is-FKR3F.tmp" /SL4 $8020A "C:\Users\Admin\AppData\Local\Temp\d27a8b0a5dd5a2e627963d15477898703e6e507cf064df0902d3b1401ca1d5e2.exe" 5597940 1418242⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2900 -
C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 23⤵
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 24⤵PID:3896
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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:5072
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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:3068
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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