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Analysis
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max time kernel
58s -
max time network
59s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
13/01/2023, 16:17
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
1.3MB
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MD5
3e9fdfad98a957c88dc532647c366c9e
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SHA1
c52a705c8320ba86855b97ad27edfba382fdee23
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SHA256
c302a2c99906b5b93406bafe03fa08f845d545bd8c5799c9e3c2fa4209c091b6
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SHA512
be9f04fb9ffbf28ce6c3e75543e45537770a7f68f36e85cb6e10065e6d18b26f68f27f933c9a80982e1d362edd9af60921ea339bf6281ffd7b6008519fe75a25
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SSDEEP
24576:g20hhVV4CHR+zYrYnIJv1S8MAlzP6yLYy+wcNiWI4hdUdfRLYf+kATuCqtn/:g2QVdoYsI/K4zPoFwNuAd1kATuCE/
Malware Config
Extracted
gcleaner
45.139.105.171
85.31.46.167
107.182.129.235
171.22.30.106
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1676 file.tmp 1756 NitFiles451.exe 1748 XUJzX.exe -
Loads dropped DLL 6 IoCs
pid Process 1948 file.exe 1676 file.tmp 1676 file.tmp 1676 file.tmp 1676 file.tmp 1756 NitFiles451.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)\Nit Files\language\is-R2U07.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-OO83N.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-702J6.tmp file.tmp File created C:\Program Files (x86)\Nit Files\is-H3H08.tmp file.tmp File created C:\Program Files (x86)\Nit Files\is-A8S14.tmp file.tmp File opened for modification C:\Program Files (x86)\Nit Files\NitFiles451.exe file.tmp File created C:\Program Files (x86)\Nit Files\language\is-PSV27.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-O3UFI.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-Q7SCF.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-VQD60.tmp file.tmp File created C:\Program Files (x86)\Nit Files\is-L9SIA.tmp file.tmp File opened for modification C:\Program Files (x86)\Nit Files\unins000.dat file.tmp File created C:\Program Files (x86)\Nit Files\is-FCTV7.tmp file.tmp File created C:\Program Files (x86)\Nit Files\is-9BN70.tmp file.tmp File created C:\Program Files (x86)\Nit Files\language\is-HQAJ8.tmp file.tmp File created C:\Program Files (x86)\Nit Files\unins000.dat file.tmp File created C:\Program Files (x86)\Nit Files\language\is-9JSC7.tmp file.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 600 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1756 NitFiles451.exe 1756 NitFiles451.exe 1756 NitFiles451.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 600 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1948 wrote to memory of 1676 1948 file.exe 28 PID 1676 wrote to memory of 1756 1676 file.tmp 29 PID 1676 wrote to memory of 1756 1676 file.tmp 29 PID 1676 wrote to memory of 1756 1676 file.tmp 29 PID 1676 wrote to memory of 1756 1676 file.tmp 29 PID 1756 wrote to memory of 1748 1756 NitFiles451.exe 30 PID 1756 wrote to memory of 1748 1756 NitFiles451.exe 30 PID 1756 wrote to memory of 1748 1756 NitFiles451.exe 30 PID 1756 wrote to memory of 1748 1756 NitFiles451.exe 30 PID 1756 wrote to memory of 316 1756 NitFiles451.exe 33 PID 1756 wrote to memory of 316 1756 NitFiles451.exe 33 PID 1756 wrote to memory of 316 1756 NitFiles451.exe 33 PID 1756 wrote to memory of 316 1756 NitFiles451.exe 33 PID 316 wrote to memory of 600 316 cmd.exe 35 PID 316 wrote to memory of 600 316 cmd.exe 35 PID 316 wrote to memory of 600 316 cmd.exe 35 PID 316 wrote to memory of 600 316 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:1948 -
C:\Users\Admin\AppData\Local\Temp\is-E8UUG.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-E8UUG.tmp\file.tmp" /SL5="$70022,1131115,233984,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Program Files (x86)\Nit Files\NitFiles451.exe"C:\Program Files (x86)\Nit Files\NitFiles451.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XUJzX.exe
- Executes dropped EXE
PID:1748
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "NitFiles451.exe" /f & erase "C:\Program Files (x86)\Nit Files\NitFiles451.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "NitFiles451.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:600
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.9MB
MD5e35036e92fe3426d2e218d1a3cc7ea8b
SHA100f5ee91d93e2179a6a641369485586a30f25aaf
SHA2565359910f896fb788ac375dc59525163c478a1cf1ef3358598de5c83763d7f8b6
SHA512c7cafa9cd4d4ee6154114dfa697f5b88d851e0b3fe8affcf6c2342a41ce6d2901121929ba73745f71a7f18e05e39641f1be7912932c5158257c83532f557b51f
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Filesize
1.9MB
MD5e35036e92fe3426d2e218d1a3cc7ea8b
SHA100f5ee91d93e2179a6a641369485586a30f25aaf
SHA2565359910f896fb788ac375dc59525163c478a1cf1ef3358598de5c83763d7f8b6
SHA512c7cafa9cd4d4ee6154114dfa697f5b88d851e0b3fe8affcf6c2342a41ce6d2901121929ba73745f71a7f18e05e39641f1be7912932c5158257c83532f557b51f
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Filesize
849KB
MD556c525b0e7751035562a3bd35096b17d
SHA1befb8a8e73e296e95412b319bc20f76fb382d525
SHA2566fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
SHA51275e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
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Filesize
849KB
MD556c525b0e7751035562a3bd35096b17d
SHA1befb8a8e73e296e95412b319bc20f76fb382d525
SHA2566fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
SHA51275e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
1.9MB
MD5e35036e92fe3426d2e218d1a3cc7ea8b
SHA100f5ee91d93e2179a6a641369485586a30f25aaf
SHA2565359910f896fb788ac375dc59525163c478a1cf1ef3358598de5c83763d7f8b6
SHA512c7cafa9cd4d4ee6154114dfa697f5b88d851e0b3fe8affcf6c2342a41ce6d2901121929ba73745f71a7f18e05e39641f1be7912932c5158257c83532f557b51f
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Filesize
849KB
MD556c525b0e7751035562a3bd35096b17d
SHA1befb8a8e73e296e95412b319bc20f76fb382d525
SHA2566fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
SHA51275e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
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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