Analysis
- max time kernel
151s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
01/10/2022, 19:52
Static task
static1
Behavioral task
behavioral1
Sample
aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe
Resource
win7-20220812-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe
Resource
win10v2004-20220901-en
10 signatures
150 seconds
General
- Target aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe
- Size 137KB
- Sample221001-ylmlraechq
- SHA256 aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0
- MD5 7290d6c5b840d629b677940ba7864850
- SHA1 46d8fdaf6386cd259ae9dc6fd273bfbc215f9b3b
- SHA512 94a7b9b36ccb1813708037a07cec10324d69cda9c7dc3f4db205489bf03af99868d933486093a07fdd0b4cba2a2050dd8a6ae00b4627c47f9f591c70ecfefea2
- SSDEEP 3072:Cnj9jtfU+INndIc0JQ5iKVk25T6nd8a9bK6PvA95hESK0A:CjbeimJTAd8d6n05hT0
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
njrat
Version
-
0.7d
Botnet
-
HacKed
C2
-
trung0979774557.homeip.net:5552
Mutex
-
192936889c1ad904a258ba1ec13299b3
Attributes
-
reg_key
192936889c1ad904a258ba1ec13299b3
-
splitter
|'|'|
Signatures
- Executes dropped EXE 8 IoCs
pid Process 1944 B.exe 2080 B.exe 3852 B.exe 3768 B.exe 4104 server.exe 4892 server.exe 3732 server.exe 2752 server.exe - Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 4400 netsh.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation B.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\192936889c1ad904a258ba1ec13299b3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\192936889c1ad904a258ba1ec13299b3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1944 set thread context of 3768 1944 B.exe 87 PID 4104 set thread context of 2752 4104 server.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1944 B.exe 1944 B.exe 4104 server.exe 4104 server.exe - Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 1944 B.exe Token: SeDebugPrivilege 4104 server.exe Token: SeDebugPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe Token: 33 2752 server.exe Token: SeIncBasePriorityPrivilege 2752 server.exe - Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 4976 wrote to memory of 1944 4976 aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe 83 PID 4976 wrote to memory of 1944 4976 aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe 83 PID 4976 wrote to memory of 1944 4976 aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe 83 PID 1944 wrote to memory of 2080 1944 B.exe 85 PID 1944 wrote to memory of 2080 1944 B.exe 85 PID 1944 wrote to memory of 2080 1944 B.exe 85 PID 1944 wrote to memory of 3852 1944 B.exe 86 PID 1944 wrote to memory of 3852 1944 B.exe 86 PID 1944 wrote to memory of 3852 1944 B.exe 86 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 1944 wrote to memory of 3768 1944 B.exe 87 PID 3768 wrote to memory of 4104 3768 B.exe 88 PID 3768 wrote to memory of 4104 3768 B.exe 88 PID 3768 wrote to memory of 4104 3768 B.exe 88 PID 4104 wrote to memory of 4892 4104 server.exe 91 PID 4104 wrote to memory of 4892 4104 server.exe 91 PID 4104 wrote to memory of 4892 4104 server.exe 91 PID 4104 wrote to memory of 3732 4104 server.exe 89 PID 4104 wrote to memory of 3732 4104 server.exe 89 PID 4104 wrote to memory of 3732 4104 server.exe 89 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 4104 wrote to memory of 2752 4104 server.exe 90 PID 2752 wrote to memory of 4400 2752 server.exe 96 PID 2752 wrote to memory of 4400 2752 server.exe 96 PID 2752 wrote to memory of 4400 2752 server.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe"C:\Users\Admin\AppData\Local\Temp\aef2a2e45deff880a7b64d6f79e0b9441916afaa230440d07ca28e5560ff0ea0.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe3⤵
- Executes dropped EXE
PID:2080
-
-
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe3⤵
- Executes dropped EXE
PID:3852
-
-
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4104 -
C:\Users\Admin\AppData\Local\Temp\server.exeC:\Users\Admin\AppData\Local\Temp\server.exe5⤵
- Executes dropped EXE
PID:3732
-
-
C:\Users\Admin\AppData\Local\Temp\server.exeC:\Users\Admin\AppData\Local\Temp\server.exe5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE6⤵
- Modifies Windows Firewall
PID:4400
-
-
-
C:\Users\Admin\AppData\Local\Temp\server.exeC:\Users\Admin\AppData\Local\Temp\server.exe5⤵
- Executes dropped EXE
PID:4892
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\CSIDL_
- Size 64KB
- SHA256 6bc0a5d9f2b33cf7c5289a6c74fd311add64dd9ad7e674b1bbebc4df4fdb7890
- MD5 e55002c9131eb52ae05d4a5ce0c8659a
- SHA1 72515fb30347176ec0310eab22720a077f762c22
- SHA512 6fa33d9f2faf217b7933f5fc7655876d545c9a58631c5d97bd2328d82d4e604413da2023b9e248935523333bb6b4f4ca1507149c3d1b57f2ace973f0d9750ce3
- SSDEEP 1536:BlXoqhX/cSD5dF6xvndgBcHea9V9V6Pcs3VdI9CsA7anSG:Pk25T6ld8a9bV6PvA9ChOSG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\CSIDL_X
- Size 64KB
- SHA256 6bc0a5d9f2b33cf7c5289a6c74fd311add64dd9ad7e674b1bbebc4df4fdb7890
- MD5 e55002c9131eb52ae05d4a5ce0c8659a
- SHA1 72515fb30347176ec0310eab22720a077f762c22
- SHA512 6fa33d9f2faf217b7933f5fc7655876d545c9a58631c5d97bd2328d82d4e604413da2023b9e248935523333bb6b4f4ca1507149c3d1b57f2ace973f0d9750ce3
- SSDEEP 1536:BlXoqhX/cSD5dF6xvndgBcHea9V9V6Pcs3VdI9CsA7anSG:Pk25T6ld8a9bV6PvA9ChOSG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.ex_
- Size 64KB
- SHA256 6bc0a5d9f2b33cf7c5289a6c74fd311add64dd9ad7e674b1bbebc4df4fdb7890
- MD5 e55002c9131eb52ae05d4a5ce0c8659a
- SHA1 72515fb30347176ec0310eab22720a077f762c22
- SHA512 6fa33d9f2faf217b7933f5fc7655876d545c9a58631c5d97bd2328d82d4e604413da2023b9e248935523333bb6b4f4ca1507149c3d1b57f2ace973f0d9750ce3
- SSDEEP 1536:BlXoqhX/cSD5dF6xvndgBcHea9V9V6Pcs3VdI9CsA7anSG:Pk25T6ld8a9bV6PvA9ChOSG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\B.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\server.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\server.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\server.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\server.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\server.exe
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startupx\system.pif
- Size 40KB
- SHA256 01715e84d2abaab8f786b656b17fc5ce653e7d0b42468abadff24c5d1d63ee6e
- MD5 67eeab292f21456677476f6139574c00
- SHA1 7cc0dfbd6a7b34334049eb877770bdf9e377be9d
- SHA512 3def31df679ad447e2a53b21033453f75d17e7e6c711ee883a5f6c60ddc8fa5159ba82a7a40999354e29df29a92539a0e2eb609ba066fb942081624ea8e4cb60
- SSDEEP 768:1N1mThU3Pa7eCNb5+hu7yT6BCop9wDf/GAskytplMTo3emr:mMsemr
- MD5 SHA1 SHA512 SSDEEP