Analysis
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max time kernel
56s -
max time network
57s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 01:46
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
1.8MB
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MD5
218adad0e2b2cb583095e5d502a8a253
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SHA1
f8a1aa0d9baad50a2855bc1b248c0b08a37c39de
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SHA256
691ff95223c2b3ebf506c212d8124b2e95d36615212b9dc0bd2d2d6c0ef0cbd1
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SHA512
63b9713b3d52cd7b48f83d11af1ab6039e562fd8686bfa0b0c1a2674de96a6a8a1082f18257a338e9ab5a225656df72a46724f977da87321774156edf9bef37b
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SSDEEP
49152:btVP4DLqXGISpMO0G0gPMabh7Q1hWP7p32:btVgq7gMO0G0gF+hGd2
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1192 is-9VEH7.tmp 1044 SplitFiles117.exe 544 RlKrbpKd4oyNZ.exe -
Loads dropped DLL 10 IoCs
pid Process 1208 file.exe 1192 is-9VEH7.tmp 1192 is-9VEH7.tmp 1192 is-9VEH7.tmp 1192 is-9VEH7.tmp 1044 SplitFiles117.exe 1044 SplitFiles117.exe 1044 SplitFiles117.exe 544 RlKrbpKd4oyNZ.exe 544 RlKrbpKd4oyNZ.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-IBTT5.tmp is-9VEH7.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-L9JHM.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-VAFGA.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-3A16I.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-RF4PH.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\is-D1JOM.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\is-H5ADD.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-L4BIG.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\is-P35TM.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\is-GU7U8.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-ODH7A.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-4Q5GQ.tmp is-9VEH7.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles117.exe is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-0CN7K.tmp is-9VEH7.tmp File created C:\Program Files (x86)\Split Files\language\is-5BM0O.tmp is-9VEH7.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 864 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1044 SplitFiles117.exe 1044 SplitFiles117.exe 1044 SplitFiles117.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 1192 is-9VEH7.tmp Token: SeBackupPrivilege 1192 is-9VEH7.tmp Token: SeDebugPrivilege 864 taskkill.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1208 wrote to memory of 1192 1208 file.exe 28 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1192 wrote to memory of 1044 1192 is-9VEH7.tmp 29 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 544 1044 SplitFiles117.exe 30 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1044 wrote to memory of 1132 1044 SplitFiles117.exe 33 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 cmd.exe 35 PID 1132 wrote to memory of 864 1132 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:1208 -
C:\Users\Admin\AppData\Local\Temp\is-DHLHD.tmp\is-9VEH7.tmp"C:\Users\Admin\AppData\Local\Temp\is-DHLHD.tmp\is-9VEH7.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1648331 1331202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Program Files (x86)\Split Files\SplitFiles117.exe"C:\Program Files (x86)\Split Files\SplitFiles117.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1044 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\RlKrbpKd4oyNZ.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:544
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles117.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles117.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles117.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:864
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD53ef27a8f5089ffc9cbe2cea20c758bc8
SHA18189afbb63e9b99c0792f6239c490ece3be0b904
SHA256243aa16255ffbeef7d788896ead7ca6446eb9830082f789bfcd48dd13982d23a
SHA51278ce587d08df9ff1e5378d6e324f3575eee38e52c3835a1bf99bbaab0333266e0d643b48fba07ed6de573d524fd837011eca01ac0516a1ab8da2da2c5b6bf770
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Filesize
3.2MB
MD53ef27a8f5089ffc9cbe2cea20c758bc8
SHA18189afbb63e9b99c0792f6239c490ece3be0b904
SHA256243aa16255ffbeef7d788896ead7ca6446eb9830082f789bfcd48dd13982d23a
SHA51278ce587d08df9ff1e5378d6e324f3575eee38e52c3835a1bf99bbaab0333266e0d643b48fba07ed6de573d524fd837011eca01ac0516a1ab8da2da2c5b6bf770
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Filesize
723KB
MD57fd7ec3d32ed2a377fa18e8931475b2e
SHA130b386da1750701f78cbf65550f32661d8a4175f
SHA2560290cf819c841a17d433eb1f768d2bad4ad57db003563a925688b1c86bef5455
SHA512db2ac34c30b89c2551d9e16de7d748e4a984141c889707a9edd165f328e75260ff6fb8d7383fb7c7fcf10000c08a10af03a50ce7b3665a8e935c0d5d66e59334
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Filesize
723KB
MD57fd7ec3d32ed2a377fa18e8931475b2e
SHA130b386da1750701f78cbf65550f32661d8a4175f
SHA2560290cf819c841a17d433eb1f768d2bad4ad57db003563a925688b1c86bef5455
SHA512db2ac34c30b89c2551d9e16de7d748e4a984141c889707a9edd165f328e75260ff6fb8d7383fb7c7fcf10000c08a10af03a50ce7b3665a8e935c0d5d66e59334
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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
MD53ef27a8f5089ffc9cbe2cea20c758bc8
SHA18189afbb63e9b99c0792f6239c490ece3be0b904
SHA256243aa16255ffbeef7d788896ead7ca6446eb9830082f789bfcd48dd13982d23a
SHA51278ce587d08df9ff1e5378d6e324f3575eee38e52c3835a1bf99bbaab0333266e0d643b48fba07ed6de573d524fd837011eca01ac0516a1ab8da2da2c5b6bf770
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Filesize
3.2MB
MD53ef27a8f5089ffc9cbe2cea20c758bc8
SHA18189afbb63e9b99c0792f6239c490ece3be0b904
SHA256243aa16255ffbeef7d788896ead7ca6446eb9830082f789bfcd48dd13982d23a
SHA51278ce587d08df9ff1e5378d6e324f3575eee38e52c3835a1bf99bbaab0333266e0d643b48fba07ed6de573d524fd837011eca01ac0516a1ab8da2da2c5b6bf770
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Filesize
3.2MB
MD53ef27a8f5089ffc9cbe2cea20c758bc8
SHA18189afbb63e9b99c0792f6239c490ece3be0b904
SHA256243aa16255ffbeef7d788896ead7ca6446eb9830082f789bfcd48dd13982d23a
SHA51278ce587d08df9ff1e5378d6e324f3575eee38e52c3835a1bf99bbaab0333266e0d643b48fba07ed6de573d524fd837011eca01ac0516a1ab8da2da2c5b6bf770
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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
MD57fd7ec3d32ed2a377fa18e8931475b2e
SHA130b386da1750701f78cbf65550f32661d8a4175f
SHA2560290cf819c841a17d433eb1f768d2bad4ad57db003563a925688b1c86bef5455
SHA512db2ac34c30b89c2551d9e16de7d748e4a984141c889707a9edd165f328e75260ff6fb8d7383fb7c7fcf10000c08a10af03a50ce7b3665a8e935c0d5d66e59334
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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