Analysis
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max time kernel
57s -
max time network
58s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 06:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
1.9MB
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MD5
502315dcc1dcc875e9af2bc3e20620ce
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SHA1
d64ea454e8aeee2f77bc5164fd433ee1017c8880
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SHA256
b80ab645a7df57d4b6e81144448e5a45df1a82c6084897e7682bb501797c40d6
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SHA512
d0a26e6c2924346141719791f39f76ab9a1fbbee4fc780faa701f91a2df3e46b842ba79cc9f6ccbd2218f297a4ab8a002ad9fc3a3e4e8183bcfb6ab338a2f73a
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SSDEEP
49152:rc4bAuzEWJi3LmYx/krKdNHldID+o+mjaAprWP7p3z:rVbABWE7mYu+dNHldk+tmjaqGdz
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 852 is-HEVTO.tmp 428 SplitFiles118.exe 1868 fMXoSAlSF7vt6N.exe -
Loads dropped DLL 10 IoCs
pid Process 1732 file.exe 852 is-HEVTO.tmp 852 is-HEVTO.tmp 852 is-HEVTO.tmp 852 is-HEVTO.tmp 428 SplitFiles118.exe 428 SplitFiles118.exe 428 SplitFiles118.exe 1868 fMXoSAlSF7vt6N.exe 1868 fMXoSAlSF7vt6N.exe -
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-L0OQJ.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-6GID3.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-N2NIR.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\is-L2COH.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-P8T41.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-9HS6H.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\is-SPDI5.tmp is-HEVTO.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles118.exe is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\is-2G37E.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-HPP2V.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-T5LS9.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\is-OT8R3.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\is-KLQUQ.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-DMM5B.tmp is-HEVTO.tmp File created C:\Program Files (x86)\Split Files\language\is-9UJTS.tmp is-HEVTO.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-HEVTO.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 632 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 428 SplitFiles118.exe 428 SplitFiles118.exe 428 SplitFiles118.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 852 is-HEVTO.tmp Token: SeBackupPrivilege 852 is-HEVTO.tmp Token: SeDebugPrivilege 632 taskkill.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 1732 wrote to memory of 852 1732 file.exe 27 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 852 wrote to memory of 428 852 is-HEVTO.tmp 28 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1868 428 SplitFiles118.exe 29 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 428 wrote to memory of 1556 428 SplitFiles118.exe 32 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34 PID 1556 wrote to memory of 632 1556 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Users\Admin\AppData\Local\Temp\is-9HVSD.tmp\is-HEVTO.tmp"C:\Users\Admin\AppData\Local\Temp\is-9HVSD.tmp\is-HEVTO.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1744512 1331202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:852 -
C:\Program Files (x86)\Split Files\SplitFiles118.exe"C:\Program Files (x86)\Split Files\SplitFiles118.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:428 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\fMXoSAlSF7vt6N.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1868
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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:1556 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles118.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:632
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.3MB
MD5f1daeeb6d9db2c80641d10e88de61449
SHA11c3e8820f89c8c78901b8981ad0f0629a2a67dc6
SHA25693443076d5d49b117e27fa859e67299dfdc24306106080913e5c2681639f27b5
SHA512180e7051110acce29d5f5c53abdf66c6b1d4f3f1f8daae96128eff828bf87e86cfc431061da3b35d969c495131465b57bdf0f775a967869f13de2a4beb5e3cce
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Filesize
3.3MB
MD5f1daeeb6d9db2c80641d10e88de61449
SHA11c3e8820f89c8c78901b8981ad0f0629a2a67dc6
SHA25693443076d5d49b117e27fa859e67299dfdc24306106080913e5c2681639f27b5
SHA512180e7051110acce29d5f5c53abdf66c6b1d4f3f1f8daae96128eff828bf87e86cfc431061da3b35d969c495131465b57bdf0f775a967869f13de2a4beb5e3cce
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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
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Filesize
3.3MB
MD5f1daeeb6d9db2c80641d10e88de61449
SHA11c3e8820f89c8c78901b8981ad0f0629a2a67dc6
SHA25693443076d5d49b117e27fa859e67299dfdc24306106080913e5c2681639f27b5
SHA512180e7051110acce29d5f5c53abdf66c6b1d4f3f1f8daae96128eff828bf87e86cfc431061da3b35d969c495131465b57bdf0f775a967869f13de2a4beb5e3cce
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Filesize
3.3MB
MD5f1daeeb6d9db2c80641d10e88de61449
SHA11c3e8820f89c8c78901b8981ad0f0629a2a67dc6
SHA25693443076d5d49b117e27fa859e67299dfdc24306106080913e5c2681639f27b5
SHA512180e7051110acce29d5f5c53abdf66c6b1d4f3f1f8daae96128eff828bf87e86cfc431061da3b35d969c495131465b57bdf0f775a967869f13de2a4beb5e3cce
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Filesize
3.3MB
MD5f1daeeb6d9db2c80641d10e88de61449
SHA11c3e8820f89c8c78901b8981ad0f0629a2a67dc6
SHA25693443076d5d49b117e27fa859e67299dfdc24306106080913e5c2681639f27b5
SHA512180e7051110acce29d5f5c53abdf66c6b1d4f3f1f8daae96128eff828bf87e86cfc431061da3b35d969c495131465b57bdf0f775a967869f13de2a4beb5e3cce
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Filesize
723KB
MD5703b4da86c2d38881230d26bc1051cb2
SHA113b9e7582e94cb6e4f703bc08a28c53cdc003019
SHA25690b8f255f68be9f092608be15074b6fc3c4be724ae82dae5adb390307b121c89
SHA512e3d80bc78b41e24450effe46f713e9bf7fcd376141a3c6b3f20e3ec81c9c3ab85d300104b2dbbef9512f92a2b613dbc326899e442dc669490c1e192f79a7363b
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c