Analysis
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max time kernel
64s -
max time network
68s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
28/12/2022, 23:45
Static task
static1
Behavioral task
behavioral1
Sample
c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe
Resource
win7-20220812-en
General
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Target
c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe
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Size
2.0MB
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MD5
9368880685abae2eadbdf926805f413f
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SHA1
4e1096c5b04be49149d8f9a8cc80a46f25caaa62
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SHA256
c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551
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SHA512
9e4b64a36807e587e0db0d349735d33fc47cfe8a6232e18316d727b92febef46fcb1ca6f370b28d0e10c6ef900df9e7affdbd556f745ef6c7d2dd008fd40603e
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SSDEEP
49152:mivLILS+BVV+OGR2K5OVIMDKDQysyIJmIrdauzdDVUDXKE:miv8RrM77m8QyIJmy8u2
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1220 is-MS0L6.tmp 1124 SplitFiles123.exe 1668 jNw55X.exe -
Loads dropped DLL 10 IoCs
pid Process 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 1220 is-MS0L6.tmp 1220 is-MS0L6.tmp 1220 is-MS0L6.tmp 1220 is-MS0L6.tmp 1124 SplitFiles123.exe 1124 SplitFiles123.exe 1124 SplitFiles123.exe 1668 jNw55X.exe 1668 jNw55X.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\unins000.dat is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\is-4HTCC.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-VPALU.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-GADD2.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\is-MHL59.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\is-G28G8.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-FMHBU.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-AE15S.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-6FPVO.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\is-E5NSO.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-U1IDI.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-UHTBO.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\is-0C9DV.tmp is-MS0L6.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles123.exe is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-RM80V.tmp is-MS0L6.tmp File created C:\Program Files (x86)\Split Files\language\is-QVPTQ.tmp is-MS0L6.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-MS0L6.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 1416 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1124 SplitFiles123.exe 1124 SplitFiles123.exe 1124 SplitFiles123.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1416 taskkill.exe Token: SeRestorePrivilege 1220 is-MS0L6.tmp Token: SeBackupPrivilege 1220 is-MS0L6.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1904 wrote to memory of 1220 1904 c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe 26 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1220 wrote to memory of 1124 1220 is-MS0L6.tmp 27 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1668 1124 SplitFiles123.exe 28 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1124 wrote to memory of 1324 1124 SplitFiles123.exe 31 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33 PID 1324 wrote to memory of 1416 1324 cmd.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe"C:\Users\Admin\AppData\Local\Temp\c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1904 -
C:\Users\Admin\AppData\Local\Temp\is-HJMEQ.tmp\is-MS0L6.tmp"C:\Users\Admin\AppData\Local\Temp\is-HJMEQ.tmp\is-MS0L6.tmp" /SL4 $60120 "C:\Users\Admin\AppData\Local\Temp\c8858635f543ff33064fb6732e1ca79a99c226a46d48cc987673059cf0ea0551.exe" 1794182 2176002⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220 -
C:\Program Files (x86)\Split Files\SplitFiles123.exe"C:\Program Files (x86)\Split Files\SplitFiles123.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\jNw55X.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1668
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles123.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles123.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles123.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1416
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5d0f0f4163552b63aed54081a28adf050
SHA1fd67d697f41e714bc8ebec7364d78a012106242a
SHA256da6e6ed6476e3e0a0528ccb94a0992eb3174a251fe68f21d17ecfe6fd0263c40
SHA5126016e806cbbb62d4eca5b1103c8a3ec1d27ce87e4377f30d1087c6d0367c1d9ca90b5ad4ab11cb0f79a550825fb90e3fa19f24b3af2f6f6802bb4da38f3f579b
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Filesize
3.2MB
MD5d0f0f4163552b63aed54081a28adf050
SHA1fd67d697f41e714bc8ebec7364d78a012106242a
SHA256da6e6ed6476e3e0a0528ccb94a0992eb3174a251fe68f21d17ecfe6fd0263c40
SHA5126016e806cbbb62d4eca5b1103c8a3ec1d27ce87e4377f30d1087c6d0367c1d9ca90b5ad4ab11cb0f79a550825fb90e3fa19f24b3af2f6f6802bb4da38f3f579b
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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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
3.2MB
MD5d0f0f4163552b63aed54081a28adf050
SHA1fd67d697f41e714bc8ebec7364d78a012106242a
SHA256da6e6ed6476e3e0a0528ccb94a0992eb3174a251fe68f21d17ecfe6fd0263c40
SHA5126016e806cbbb62d4eca5b1103c8a3ec1d27ce87e4377f30d1087c6d0367c1d9ca90b5ad4ab11cb0f79a550825fb90e3fa19f24b3af2f6f6802bb4da38f3f579b
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Filesize
3.2MB
MD5d0f0f4163552b63aed54081a28adf050
SHA1fd67d697f41e714bc8ebec7364d78a012106242a
SHA256da6e6ed6476e3e0a0528ccb94a0992eb3174a251fe68f21d17ecfe6fd0263c40
SHA5126016e806cbbb62d4eca5b1103c8a3ec1d27ce87e4377f30d1087c6d0367c1d9ca90b5ad4ab11cb0f79a550825fb90e3fa19f24b3af2f6f6802bb4da38f3f579b
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Filesize
3.2MB
MD5d0f0f4163552b63aed54081a28adf050
SHA1fd67d697f41e714bc8ebec7364d78a012106242a
SHA256da6e6ed6476e3e0a0528ccb94a0992eb3174a251fe68f21d17ecfe6fd0263c40
SHA5126016e806cbbb62d4eca5b1103c8a3ec1d27ce87e4377f30d1087c6d0367c1d9ca90b5ad4ab11cb0f79a550825fb90e3fa19f24b3af2f6f6802bb4da38f3f579b
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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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