Analysis
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max time kernel
60s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
29/12/2022, 07:09
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
1.8MB
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MD5
9147871d5f5abbfa3f2c2b66e5326e2c
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SHA1
18d47c00b6d8c175249cf76d1ec366803e452d5a
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SHA256
fc711b6088e7ea393ccbe94d19924936c9d0b80bd86bac7c7fee9382547d6c33
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SHA512
54c03195ec812e3e04aa3faaf3f853f479d4a8c49f2530e36197d5e8ecb92a9146cff31db5c730f9cfe1a9ab7a029b85023cc8e0be23a218c27b20a65501cd55
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SSDEEP
49152:0iNSQFWtIC1j3W5dsWIiQO8OH5bZXl/Nc:0iNSQFmIw379884a
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1776 is-F7COA.tmp 1500 SplitFiles124.exe 516 JjSXFeg.exe -
Loads dropped DLL 10 IoCs
pid Process 2012 file.exe 1776 is-F7COA.tmp 1776 is-F7COA.tmp 1776 is-F7COA.tmp 1776 is-F7COA.tmp 1500 SplitFiles124.exe 1500 SplitFiles124.exe 1500 SplitFiles124.exe 516 JjSXFeg.exe 516 JjSXFeg.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-DVVHE.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-V3D9A.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-D3EH2.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-33TE6.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\is-DGU9D.tmp is-F7COA.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-F7COA.tmp File created C:\Program Files (x86)\Split Files\is-07OJF.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-4CH98.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-JPB1N.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\is-N6RD6.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\is-OLLSO.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\is-4FJ7O.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-CMMUS.tmp is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-539UD.tmp is-F7COA.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles124.exe is-F7COA.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-F7COA.tmp File created C:\Program Files (x86)\Split Files\language\is-T1H82.tmp is-F7COA.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 952 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1500 SplitFiles124.exe 1500 SplitFiles124.exe 1500 SplitFiles124.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 952 taskkill.exe Token: SeRestorePrivilege 1776 is-F7COA.tmp Token: SeBackupPrivilege 1776 is-F7COA.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 2012 wrote to memory of 1776 2012 file.exe 27 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1776 wrote to memory of 1500 1776 is-F7COA.tmp 28 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 516 1500 SplitFiles124.exe 29 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1500 wrote to memory of 1156 1500 SplitFiles124.exe 32 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 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:2012 -
C:\Users\Admin\AppData\Local\Temp\is-6O27A.tmp\is-F7COA.tmp"C:\Users\Admin\AppData\Local\Temp\is-6O27A.tmp\is-F7COA.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1635962 967682⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Program Files (x86)\Split Files\SplitFiles124.exe"C:\Program Files (x86)\Split Files\SplitFiles124.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\JjSXFeg.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:516
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles124.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles124.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles124.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:952
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.1MB
MD5c1841b6008a867b0cce3bd803c12a3d2
SHA1b658e5e1506e7369e2ef35a7745504d8d5e82b05
SHA256e4272a1e17d3af9ed0e3e880a62e4c1f28017e736c99b3399f47fdfe7d156d01
SHA5125d0914fb89a029257e20c4ee14446034fdb081fbff97736407c3169c5cc8be2bf91ef8192479d482d95d591b08e525c834206ef51baec7693a9885420b3122d1
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Filesize
3.1MB
MD5c1841b6008a867b0cce3bd803c12a3d2
SHA1b658e5e1506e7369e2ef35a7745504d8d5e82b05
SHA256e4272a1e17d3af9ed0e3e880a62e4c1f28017e736c99b3399f47fdfe7d156d01
SHA5125d0914fb89a029257e20c4ee14446034fdb081fbff97736407c3169c5cc8be2bf91ef8192479d482d95d591b08e525c834206ef51baec7693a9885420b3122d1
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Filesize
688KB
MD5807603f3a565337ee2ac3e819b25ee58
SHA15cc4e6c82fbdda6697a1117561f23731d51baacd
SHA256682dd0a4ea6b0d763a1adb14def8657518a4879e454c7ece43505910dd448423
SHA512252831b5fe5869c0abd25f246fe161e5b8218e9c54231fa9c5c78d5ffe6ff0c8e3d1f9ea3316f74b47ce372f1f8f06edd8e147711633f4028acd0cf7d5cd946d
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Filesize
688KB
MD5807603f3a565337ee2ac3e819b25ee58
SHA15cc4e6c82fbdda6697a1117561f23731d51baacd
SHA256682dd0a4ea6b0d763a1adb14def8657518a4879e454c7ece43505910dd448423
SHA512252831b5fe5869c0abd25f246fe161e5b8218e9c54231fa9c5c78d5ffe6ff0c8e3d1f9ea3316f74b47ce372f1f8f06edd8e147711633f4028acd0cf7d5cd946d
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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
MD5c1841b6008a867b0cce3bd803c12a3d2
SHA1b658e5e1506e7369e2ef35a7745504d8d5e82b05
SHA256e4272a1e17d3af9ed0e3e880a62e4c1f28017e736c99b3399f47fdfe7d156d01
SHA5125d0914fb89a029257e20c4ee14446034fdb081fbff97736407c3169c5cc8be2bf91ef8192479d482d95d591b08e525c834206ef51baec7693a9885420b3122d1
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Filesize
3.1MB
MD5c1841b6008a867b0cce3bd803c12a3d2
SHA1b658e5e1506e7369e2ef35a7745504d8d5e82b05
SHA256e4272a1e17d3af9ed0e3e880a62e4c1f28017e736c99b3399f47fdfe7d156d01
SHA5125d0914fb89a029257e20c4ee14446034fdb081fbff97736407c3169c5cc8be2bf91ef8192479d482d95d591b08e525c834206ef51baec7693a9885420b3122d1
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Filesize
3.1MB
MD5c1841b6008a867b0cce3bd803c12a3d2
SHA1b658e5e1506e7369e2ef35a7745504d8d5e82b05
SHA256e4272a1e17d3af9ed0e3e880a62e4c1f28017e736c99b3399f47fdfe7d156d01
SHA5125d0914fb89a029257e20c4ee14446034fdb081fbff97736407c3169c5cc8be2bf91ef8192479d482d95d591b08e525c834206ef51baec7693a9885420b3122d1
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Filesize
688KB
MD5807603f3a565337ee2ac3e819b25ee58
SHA15cc4e6c82fbdda6697a1117561f23731d51baacd
SHA256682dd0a4ea6b0d763a1adb14def8657518a4879e454c7ece43505910dd448423
SHA512252831b5fe5869c0abd25f246fe161e5b8218e9c54231fa9c5c78d5ffe6ff0c8e3d1f9ea3316f74b47ce372f1f8f06edd8e147711633f4028acd0cf7d5cd946d
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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