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Analysis
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max time kernel
64s -
max time network
66s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
24/12/2022, 21:46
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
1.7MB
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MD5
99838b7b07ad40e555b779128b2b512c
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SHA1
81549fe5c484886e3265b1c09c27df29bbad7484
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SHA256
b2f330125f6a09ebd5eaa88e5dcc582a34de1f3fb6997d1299180d678532b8a5
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SHA512
c06562a1861dedb05e9f2226fd974f180520ccb02d535f365763d146251f2f0d8237f1e9fe36d4fb693e35dbeeb3e89c83301d1cd27b67dc459e8ec2cb2861f9
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SSDEEP
49152:yiFXjLacmNJqXzfEsLSejK61els8CeFZaR:yiFzLacmNU4YSeHL8vFMR
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 896 is-G9HLI.tmp 1988 SplitFiles119.exe 1448 lSDIvfa8W6Nl1.exe -
Loads dropped DLL 10 IoCs
pid Process 1196 file.exe 896 is-G9HLI.tmp 896 is-G9HLI.tmp 896 is-G9HLI.tmp 896 is-G9HLI.tmp 1988 SplitFiles119.exe 1988 SplitFiles119.exe 1988 SplitFiles119.exe 1448 lSDIvfa8W6Nl1.exe 1448 lSDIvfa8W6Nl1.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\is-FESMI.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\is-JBRJ8.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-PENIN.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-RI4A4.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-I4SHN.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-C9NAH.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-AIA5T.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-A6T77.tmp is-G9HLI.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles119.exe is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-10NOJ.tmp is-G9HLI.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\is-0PR8F.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-BQ570.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\is-ET1T2.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\is-534FQ.tmp is-G9HLI.tmp File created C:\Program Files (x86)\Split Files\language\is-GP3MT.tmp is-G9HLI.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 1220 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1988 SplitFiles119.exe 1988 SplitFiles119.exe 1988 SplitFiles119.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1220 taskkill.exe Token: SeRestorePrivilege 896 is-G9HLI.tmp Token: SeBackupPrivilege 896 is-G9HLI.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 1196 wrote to memory of 896 1196 file.exe 27 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 896 wrote to memory of 1988 896 is-G9HLI.tmp 28 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 1448 1988 SplitFiles119.exe 29 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 1988 wrote to memory of 928 1988 SplitFiles119.exe 32 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 cmd.exe 34 PID 928 wrote to memory of 1220 928 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:1196 -
C:\Users\Admin\AppData\Local\Temp\is-TE1JI.tmp\is-G9HLI.tmp"C:\Users\Admin\AppData\Local\Temp\is-TE1JI.tmp\is-G9HLI.tmp" /SL4 $60124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1583201 962562⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Program Files (x86)\Split Files\SplitFiles119.exe"C:\Program Files (x86)\Split Files\SplitFiles119.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\lSDIvfa8W6Nl1.exe
- Executes dropped EXE
- Loads dropped DLL
PID:1448
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles119.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles119.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:928 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles119.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1220
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.1MB
MD5a8d4130dc39f7bf2e7c126c2148e0042
SHA1d4e32f5863796d8edf96d5366727e9e16ceeae48
SHA256fb81b6436bb26172e0dc3550d2f13e9bce4b8e42fb9c8b318369f01cf39d796e
SHA512eba8b8cd2d92142293184c0a3d16cc47f8b50e6efb6a99b593449a3fe8deb9a93708a2a5469006a6c77d90170799f13e94dab60e9ad61d313fd53d92ca759448
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Filesize
3.1MB
MD5a8d4130dc39f7bf2e7c126c2148e0042
SHA1d4e32f5863796d8edf96d5366727e9e16ceeae48
SHA256fb81b6436bb26172e0dc3550d2f13e9bce4b8e42fb9c8b318369f01cf39d796e
SHA512eba8b8cd2d92142293184c0a3d16cc47f8b50e6efb6a99b593449a3fe8deb9a93708a2a5469006a6c77d90170799f13e94dab60e9ad61d313fd53d92ca759448
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Filesize
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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Filesize
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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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
3.1MB
MD5a8d4130dc39f7bf2e7c126c2148e0042
SHA1d4e32f5863796d8edf96d5366727e9e16ceeae48
SHA256fb81b6436bb26172e0dc3550d2f13e9bce4b8e42fb9c8b318369f01cf39d796e
SHA512eba8b8cd2d92142293184c0a3d16cc47f8b50e6efb6a99b593449a3fe8deb9a93708a2a5469006a6c77d90170799f13e94dab60e9ad61d313fd53d92ca759448
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Filesize
3.1MB
MD5a8d4130dc39f7bf2e7c126c2148e0042
SHA1d4e32f5863796d8edf96d5366727e9e16ceeae48
SHA256fb81b6436bb26172e0dc3550d2f13e9bce4b8e42fb9c8b318369f01cf39d796e
SHA512eba8b8cd2d92142293184c0a3d16cc47f8b50e6efb6a99b593449a3fe8deb9a93708a2a5469006a6c77d90170799f13e94dab60e9ad61d313fd53d92ca759448
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Filesize
3.1MB
MD5a8d4130dc39f7bf2e7c126c2148e0042
SHA1d4e32f5863796d8edf96d5366727e9e16ceeae48
SHA256fb81b6436bb26172e0dc3550d2f13e9bce4b8e42fb9c8b318369f01cf39d796e
SHA512eba8b8cd2d92142293184c0a3d16cc47f8b50e6efb6a99b593449a3fe8deb9a93708a2a5469006a6c77d90170799f13e94dab60e9ad61d313fd53d92ca759448
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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
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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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