Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07-11-2024 16:21
Behavioral task
behavioral1
Sample
34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
Resource
win7-20240903-en
General
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Target
34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
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Size
203KB
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MD5
697e0f8ff4933bc74eeb786986e83161
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SHA1
8aefabcf687b0ce57b268952a682e4330e01842d
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SHA256
34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338
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SHA512
cb10ddef9e35e35858ee6e133b45b34694bdd2f8531b245db9161500057187abfa071fd4bf7bde8163a184802e59f81fc902ce9459a25cffbe0f7499f6f3d523
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SSDEEP
6144:MLV6Bta6dtJmakIM5sd4SJm9dsJz1ORH4L:MLV6BtpmkBdvzORHE
Malware Config
Signatures
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Nanocore family
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.exe" 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\ISS Host\isshost.exe 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe File created C:\Program Files (x86)\ISS Host\isshost.exe 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1040 schtasks.exe 2984 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3048 wrote to memory of 1040 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 30 PID 3048 wrote to memory of 1040 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 30 PID 3048 wrote to memory of 1040 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 30 PID 3048 wrote to memory of 1040 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 30 PID 3048 wrote to memory of 2984 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 32 PID 3048 wrote to memory of 2984 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 32 PID 3048 wrote to memory of 2984 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 32 PID 3048 wrote to memory of 2984 3048 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe"C:\Users\Admin\AppData\Local\Temp\34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9EFD.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1040
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9F9A.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2984
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
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Filesize
1KB
MD597cc659bd9cafdf1496e9f5e5fe81b8c
SHA18a9780ad3a2715505d9a11b5ef33b53d05e20ae2
SHA2567df051e8a31ff5210a33b689513fa095f46c4643cd364f9f6e67dbd302174f4c
SHA512f09212e1bb24866e9136ff27ef91a4489ae33fa6446c398afdfae6d564af792411686115d0160506c485ed3b4e41a25aa4e0d04f120b9d51d5339f5a593573c8
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Filesize
1KB
MD53d1580c0395f6de62659467f5b7f1acf
SHA18e73a3885896cecca7ff799a272fc9ddfe06ea96
SHA2566f40196c42a171f24a3e16edeca664cdc5a2f7c150d468255b0e14ab10a2b714
SHA5127637c0d9b03227dffcb00a68d97ddce60bfc40ca0f8a7a4bbd700ea56be6d570908511dea5cab9f609a7da2e558e5298c482fd1e330af085f9c52867d5a847ea