Analysis
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max time kernel
54s -
max time network
55s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 06:31
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
e4d1383db2a73666588655270cb32f79
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SHA1
0d428b02b6f00327148700c909aa36cdad93fcd1
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SHA256
d7e30ad076b20ecd62723437ddbacbf4e0bf837a7bd0e0aaeb3ace2956e9d13f
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SHA512
18d29f8aeee8572be1131edd9356c722fe37c6b8086d45f408a405e60e574771c7bf1fac16dcaf9c7c9b8addf8bb48ad25f9a8c0707d92e1a314a4d437b7bca1
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SSDEEP
49152:bUqow54+VTwzcT2zj0RZ7l1CPhmt2cWP7p38:bUqtW+dwzE2kRL1CPUGd8
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1636 is-T4C7C.tmp 1180 SplitFiles118.exe 1164 wXLL9.exe -
Loads dropped DLL 10 IoCs
pid Process 1732 file.exe 1636 is-T4C7C.tmp 1636 is-T4C7C.tmp 1636 is-T4C7C.tmp 1636 is-T4C7C.tmp 1180 SplitFiles118.exe 1180 SplitFiles118.exe 1180 SplitFiles118.exe 1164 wXLL9.exe 1164 wXLL9.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-A1N29.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\is-UVT22.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\is-LDEAV.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-FVEET.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-JJR0G.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-UA8OM.tmp is-T4C7C.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-T4C7C.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles118.exe is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-9UQHS.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\is-GQJ3H.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-1L0IR.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-VOURR.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\is-AT6U9.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\is-21AEB.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-LGMF8.tmp is-T4C7C.tmp File created C:\Program Files (x86)\Split Files\language\is-B2287.tmp is-T4C7C.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 1872 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1180 SplitFiles118.exe 1180 SplitFiles118.exe 1180 SplitFiles118.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1872 taskkill.exe Token: SeRestorePrivilege 1636 is-T4C7C.tmp Token: SeBackupPrivilege 1636 is-T4C7C.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1732 wrote to memory of 1636 1732 file.exe 28 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1636 wrote to memory of 1180 1636 is-T4C7C.tmp 29 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1164 1180 SplitFiles118.exe 30 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1180 wrote to memory of 1144 1180 SplitFiles118.exe 33 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 cmd.exe 35 PID 1144 wrote to memory of 1872 1144 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:1732 -
C:\Users\Admin\AppData\Local\Temp\is-10K8J.tmp\is-T4C7C.tmp"C:\Users\Admin\AppData\Local\Temp\is-10K8J.tmp\is-T4C7C.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1661981 1331202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636 -
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:1180 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\wXLL9.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1164
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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:1144 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles118.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1872
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.1MB
MD555911d24ccf14f616af8c42be3c30cea
SHA105d5a813e5a626beaf066db624cde79257f1105f
SHA256eb83398b7cbf961d9aa67bb727d71c9571aeeb3d4b451dde75c6a7f99a85923c
SHA5126c7419e0fed4a4ccd85656c8e4ae1aaa05baa07337ddb56a47ec76f72571f743d8c1b7ee64069c9db47c59203870b9687f54b3df6990c800294e740b8558da92
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Filesize
3.1MB
MD555911d24ccf14f616af8c42be3c30cea
SHA105d5a813e5a626beaf066db624cde79257f1105f
SHA256eb83398b7cbf961d9aa67bb727d71c9571aeeb3d4b451dde75c6a7f99a85923c
SHA5126c7419e0fed4a4ccd85656c8e4ae1aaa05baa07337ddb56a47ec76f72571f743d8c1b7ee64069c9db47c59203870b9687f54b3df6990c800294e740b8558da92
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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
3.1MB
MD555911d24ccf14f616af8c42be3c30cea
SHA105d5a813e5a626beaf066db624cde79257f1105f
SHA256eb83398b7cbf961d9aa67bb727d71c9571aeeb3d4b451dde75c6a7f99a85923c
SHA5126c7419e0fed4a4ccd85656c8e4ae1aaa05baa07337ddb56a47ec76f72571f743d8c1b7ee64069c9db47c59203870b9687f54b3df6990c800294e740b8558da92
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Filesize
3.1MB
MD555911d24ccf14f616af8c42be3c30cea
SHA105d5a813e5a626beaf066db624cde79257f1105f
SHA256eb83398b7cbf961d9aa67bb727d71c9571aeeb3d4b451dde75c6a7f99a85923c
SHA5126c7419e0fed4a4ccd85656c8e4ae1aaa05baa07337ddb56a47ec76f72571f743d8c1b7ee64069c9db47c59203870b9687f54b3df6990c800294e740b8558da92
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Filesize
3.1MB
MD555911d24ccf14f616af8c42be3c30cea
SHA105d5a813e5a626beaf066db624cde79257f1105f
SHA256eb83398b7cbf961d9aa67bb727d71c9571aeeb3d4b451dde75c6a7f99a85923c
SHA5126c7419e0fed4a4ccd85656c8e4ae1aaa05baa07337ddb56a47ec76f72571f743d8c1b7ee64069c9db47c59203870b9687f54b3df6990c800294e740b8558da92
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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