Analysis
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max time kernel
60s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 08:46
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
ee462a073733b708fe893763a74df0ca
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SHA1
7fd26ac78dc92596084a420146a887903f827049
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SHA256
227636537279b4f263ea16cd1fb60b11cd0086769e165bd381bd2603c73c7eea
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SHA512
bfa2227b294a5d5ab43f945b17764ccb422b3d2872cbbaee256b9e6904b8ac741e0eb629277f40b847d2ef5b30859805fd877e262af1efd534dc5a06e2cff625
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SSDEEP
49152:/duFwjaEQRW247LLtWUXK7DVUT4/Fl8z70JbPcSz/pja0WP7p3N:/duKGEQcUNf6AbEshhGdN
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1324 is-DD5J1.tmp 1512 SplitFiles118.exe 656 MjAxa9lAodV.exe -
Loads dropped DLL 10 IoCs
pid Process 840 file.exe 1324 is-DD5J1.tmp 1324 is-DD5J1.tmp 1324 is-DD5J1.tmp 1324 is-DD5J1.tmp 1512 SplitFiles118.exe 1512 SplitFiles118.exe 1512 SplitFiles118.exe 656 MjAxa9lAodV.exe 656 MjAxa9lAodV.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-7KODU.tmp is-DD5J1.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-SLUAE.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-KGI36.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-GKQ8I.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-SU4I9.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\is-QCSH4.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-RFGMA.tmp is-DD5J1.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles118.exe is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-RGV33.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-V6UNU.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-MOAQ2.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\is-2SH94.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\is-EHMQI.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\is-48U5P.tmp is-DD5J1.tmp File created C:\Program Files (x86)\Split Files\language\is-K58N8.tmp is-DD5J1.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 1344 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1512 SplitFiles118.exe 1512 SplitFiles118.exe 1512 SplitFiles118.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1344 taskkill.exe Token: SeRestorePrivilege 1324 is-DD5J1.tmp Token: SeBackupPrivilege 1324 is-DD5J1.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 840 wrote to memory of 1324 840 file.exe 28 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1324 wrote to memory of 1512 1324 is-DD5J1.tmp 29 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 656 1512 SplitFiles118.exe 30 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1512 wrote to memory of 1592 1512 SplitFiles118.exe 33 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35 PID 1592 wrote to memory of 1344 1592 cmd.exe 35
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:840 -
C:\Users\Admin\AppData\Local\Temp\is-RKPBD.tmp\is-DD5J1.tmp"C:\Users\Admin\AppData\Local\Temp\is-RKPBD.tmp\is-DD5J1.tmp" /SL4 $70124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1788156 1331202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324 -
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:1512 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\MjAxa9lAodV.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:656
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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:1592 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles118.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1344
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.3MB
MD5a41341f861fb5f7b9782154af3f08bc1
SHA1f353b3531ea73e728fc45372316b4ae4fa1710ee
SHA256a3bbe8d481b68487f0e5522b14232d43b02dd1979ec18892a4f4207796d94e69
SHA5125417c2116e4e0aded40f3402210c85087a4dabe43ba55d888b16ebd80390d0ccb4cb46acbe36935af0428cb1d7351bdbf067081a2c1ccfc749959badd385a68d
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Filesize
3.3MB
MD5a41341f861fb5f7b9782154af3f08bc1
SHA1f353b3531ea73e728fc45372316b4ae4fa1710ee
SHA256a3bbe8d481b68487f0e5522b14232d43b02dd1979ec18892a4f4207796d94e69
SHA5125417c2116e4e0aded40f3402210c85087a4dabe43ba55d888b16ebd80390d0ccb4cb46acbe36935af0428cb1d7351bdbf067081a2c1ccfc749959badd385a68d
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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
MD5a41341f861fb5f7b9782154af3f08bc1
SHA1f353b3531ea73e728fc45372316b4ae4fa1710ee
SHA256a3bbe8d481b68487f0e5522b14232d43b02dd1979ec18892a4f4207796d94e69
SHA5125417c2116e4e0aded40f3402210c85087a4dabe43ba55d888b16ebd80390d0ccb4cb46acbe36935af0428cb1d7351bdbf067081a2c1ccfc749959badd385a68d
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Filesize
3.3MB
MD5a41341f861fb5f7b9782154af3f08bc1
SHA1f353b3531ea73e728fc45372316b4ae4fa1710ee
SHA256a3bbe8d481b68487f0e5522b14232d43b02dd1979ec18892a4f4207796d94e69
SHA5125417c2116e4e0aded40f3402210c85087a4dabe43ba55d888b16ebd80390d0ccb4cb46acbe36935af0428cb1d7351bdbf067081a2c1ccfc749959badd385a68d
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Filesize
3.3MB
MD5a41341f861fb5f7b9782154af3f08bc1
SHA1f353b3531ea73e728fc45372316b4ae4fa1710ee
SHA256a3bbe8d481b68487f0e5522b14232d43b02dd1979ec18892a4f4207796d94e69
SHA5125417c2116e4e0aded40f3402210c85087a4dabe43ba55d888b16ebd80390d0ccb4cb46acbe36935af0428cb1d7351bdbf067081a2c1ccfc749959badd385a68d
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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
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
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c