Analysis
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max time kernel
91s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
23/12/2022, 09:16
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
1.9MB
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MD5
df7140cead45dcf6b68791762d006c06
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SHA1
3d3ce18cad6a2f4d31b12f7e0d43f36dacb3799d
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SHA256
b95943685757e72e14609835e372f4c4e57148e8de7829290bcd71a0fbee0cbe
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SHA512
cf2840714785db15917787cf5ce8dbb2dfccd3e789b5951d9182a8e132b3c31d9badae75dbddc66e285c0a17f8815defb70562a3d280dec753af21377cd2aa77
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SSDEEP
49152:rKvMqLJ4HfVSuGMFxX2upJl1Lz0W+ETmRLN2L2LQWP7p3r:rlqL85lRvbKRLNo28Gdr
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 448 is-KODRP.tmp 2912 SplitFiles118.exe 556 UeKLmmeKlnZmY.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation SplitFiles118.exe -
Loads dropped DLL 1 IoCs
pid Process 448 is-KODRP.tmp -
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 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\language\is-KI2S3.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-72APC.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\is-N9AVU.tmp is-KODRP.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-KODRP.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles118.exe is-KODRP.tmp File created C:\Program Files (x86)\Split Files\is-G5I9M.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-QRFII.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-KFRKK.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-K1JTF.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-SPTV8.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\is-IBVB2.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-8SE8C.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\is-I6U0G.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\is-CTJRA.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-EVC58.tmp is-KODRP.tmp File created C:\Program Files (x86)\Split Files\language\is-BTDTK.tmp is-KODRP.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 4056 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2912 SplitFiles118.exe 2912 SplitFiles118.exe 2912 SplitFiles118.exe 2912 SplitFiles118.exe 2912 SplitFiles118.exe 2912 SplitFiles118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4056 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4808 wrote to memory of 448 4808 file.exe 81 PID 4808 wrote to memory of 448 4808 file.exe 81 PID 4808 wrote to memory of 448 4808 file.exe 81 PID 448 wrote to memory of 2912 448 is-KODRP.tmp 82 PID 448 wrote to memory of 2912 448 is-KODRP.tmp 82 PID 448 wrote to memory of 2912 448 is-KODRP.tmp 82 PID 2912 wrote to memory of 556 2912 SplitFiles118.exe 83 PID 2912 wrote to memory of 556 2912 SplitFiles118.exe 83 PID 2912 wrote to memory of 556 2912 SplitFiles118.exe 83 PID 2912 wrote to memory of 3636 2912 SplitFiles118.exe 91 PID 2912 wrote to memory of 3636 2912 SplitFiles118.exe 91 PID 2912 wrote to memory of 3636 2912 SplitFiles118.exe 91 PID 3636 wrote to memory of 4056 3636 cmd.exe 93 PID 3636 wrote to memory of 4056 3636 cmd.exe 93 PID 3636 wrote to memory of 4056 3636 cmd.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4808 -
C:\Users\Admin\AppData\Local\Temp\is-GCNML.tmp\is-KODRP.tmp"C:\Users\Admin\AppData\Local\Temp\is-GCNML.tmp\is-KODRP.tmp" /SL4 $801B6 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1760720 1331202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Program Files (x86)\Split Files\SplitFiles118.exe"C:\Program Files (x86)\Split Files\SplitFiles118.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\UeKLmmeKlnZmY.exe4⤵
- Executes dropped EXE
PID:556
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles118.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles118.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:3636 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles118.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4056
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.3MB
MD5aef058ba339208c92721fb24704b03bf
SHA1ef012397910fddbd56682692c1195209076a4e0e
SHA256d70a04adf97465c7ceb359c8b26f0895d20f62692d91439275aab1c5c6ff40f4
SHA51292e01de106544fbcc94ee2d7b87cc375db09d08ca6fdfd382f8404fb2c68db637a72fc3827a864a6d63c5550656a598f11229cf76476d4ff7e945c65a9f4971e
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Filesize
3.3MB
MD5aef058ba339208c92721fb24704b03bf
SHA1ef012397910fddbd56682692c1195209076a4e0e
SHA256d70a04adf97465c7ceb359c8b26f0895d20f62692d91439275aab1c5c6ff40f4
SHA51292e01de106544fbcc94ee2d7b87cc375db09d08ca6fdfd382f8404fb2c68db637a72fc3827a864a6d63c5550656a598f11229cf76476d4ff7e945c65a9f4971e
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
723KB
MD5703b4da86c2d38881230d26bc1051cb2
SHA113b9e7582e94cb6e4f703bc08a28c53cdc003019
SHA25690b8f255f68be9f092608be15074b6fc3c4be724ae82dae5adb390307b121c89
SHA512e3d80bc78b41e24450effe46f713e9bf7fcd376141a3c6b3f20e3ec81c9c3ab85d300104b2dbbef9512f92a2b613dbc326899e442dc669490c1e192f79a7363b
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Filesize
723KB
MD5703b4da86c2d38881230d26bc1051cb2
SHA113b9e7582e94cb6e4f703bc08a28c53cdc003019
SHA25690b8f255f68be9f092608be15074b6fc3c4be724ae82dae5adb390307b121c89
SHA512e3d80bc78b41e24450effe46f713e9bf7fcd376141a3c6b3f20e3ec81c9c3ab85d300104b2dbbef9512f92a2b613dbc326899e442dc669490c1e192f79a7363b
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c