Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2023 08:14
Static task
static1
Behavioral task
behavioral1
Sample
a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe
Resource
win10v2004-20231020-en
General
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Target
a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe
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Size
5.6MB
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MD5
5ea6fa5fccb8d776af87f7772d311cef
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SHA1
e484af996a0568da696970a61f8718618f59c043
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SHA256
a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc
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SHA512
7d200f8e8dd5504a8210e6f2413a199a585254aa001000ecc795d5960a0f3b8a68c90159b1afd553fd6e176cc23d741bba1b687bc6b6ecbdf5d0f59ea9f9eb30
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SSDEEP
98304:JiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:YRm1syxacY48eda2TMpQdZ9nc+fyhNjG
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4928 is-8CCBJ.tmp 4416 IsoBuster_1121.exe 3824 IsoBuster_1121.exe -
Loads dropped DLL 1 IoCs
pid Process 4928 is-8CCBJ.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-A208E.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8KKBR.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-DUPSD.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-BLVB7.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TG1MB.tmp is-8CCBJ.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-HPF8T.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-CE1JJ.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-LR2A0.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-3JPV9.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-CM1C5.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-JKFKE.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-T8K0N.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-J8J40.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-7TGQH.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-F51HJ.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-702NS.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-2ENNB.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8JOLJ.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-V992I.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-STF13.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-BPRRS.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-099DL.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-ISSVJ.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\is-VPP8F.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-QC3J7.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-2A1C6.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-LDEQO.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-JAF5L.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-552B8.tmp is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-BQGI7.tmp is-8CCBJ.tmp File opened for modification C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe is-8CCBJ.tmp File created C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-49KQ0.tmp is-8CCBJ.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 1408 wrote to memory of 4928 1408 a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe 88 PID 1408 wrote to memory of 4928 1408 a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe 88 PID 1408 wrote to memory of 4928 1408 a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe 88 PID 4928 wrote to memory of 8 4928 is-8CCBJ.tmp 91 PID 4928 wrote to memory of 8 4928 is-8CCBJ.tmp 91 PID 4928 wrote to memory of 8 4928 is-8CCBJ.tmp 91 PID 4928 wrote to memory of 4416 4928 is-8CCBJ.tmp 93 PID 4928 wrote to memory of 4416 4928 is-8CCBJ.tmp 93 PID 4928 wrote to memory of 4416 4928 is-8CCBJ.tmp 93 PID 8 wrote to memory of 2940 8 net.exe 94 PID 8 wrote to memory of 2940 8 net.exe 94 PID 8 wrote to memory of 2940 8 net.exe 94 PID 4928 wrote to memory of 3824 4928 is-8CCBJ.tmp 97 PID 4928 wrote to memory of 3824 4928 is-8CCBJ.tmp 97 PID 4928 wrote to memory of 3824 4928 is-8CCBJ.tmp 97
Processes
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C:\Users\Admin\AppData\Local\Temp\a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe"C:\Users\Admin\AppData\Local\Temp\a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1408 -
C:\Users\Admin\AppData\Local\Temp\is-7EPC7.tmp\is-8CCBJ.tmp"C:\Users\Admin\AppData\Local\Temp\is-7EPC7.tmp\is-8CCBJ.tmp" /SL4 $50118 "C:\Users\Admin\AppData\Local\Temp\a8a62ffac7566fb42a71fdac951df4152903ded130de732c6577b6ca33d431fc.exe" 5597940 1418242⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 23⤵
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 24⤵PID:2940
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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:4416
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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:3824
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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