Analysis
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max time kernel
144s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
15/11/2022, 11:37
Static task
static1
Behavioral task
behavioral1
Sample
REVISED PO -TSTC22-1011_Pdf.exe
Resource
win7-20221111-en
General
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Target
REVISED PO -TSTC22-1011_Pdf.exe
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Size
800KB
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MD5
bd101f1d805750bd4b9fdeeb546efcc0
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SHA1
fa881fdee6fbff34055e00737a3766fcd1493a1b
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SHA256
e23943f7a0d3e8bfcb2ea6debdd990281fd94e32629db00f12b8208b668bed52
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SHA512
cdf9db01870ead7062166a7b2075620d4aa747b0716078498e917bbb48f6729a32902f49a9d1071d67520752e7e9bffe2d2a7effa304a9acbcea5fa841e40362
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SSDEEP
12288:SKfxkcehk1CEunCU8gJwWcGfqefprSBDgM/A:NLV1CEuCURT/mDW
Malware Config
Extracted
nanocore
1.2.2.0
henzy.ddns.net:2828
88894717-40ab-4845-8948-707139163d90
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activate_away_mode
true
- backup_connection_host
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-05-20T06:47:18.240303436Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
2828
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default_group
User22
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
88894717-40ab-4845-8948-707139163d90
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
henzy.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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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 Manager = "C:\\Program Files (x86)\\ISS Manager\\issmgr.exe" REVISED PO -TSTC22-1011_Pdf.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA REVISED PO -TSTC22-1011_Pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2012 set thread context of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\ISS Manager\issmgr.exe REVISED PO -TSTC22-1011_Pdf.exe File opened for modification C:\Program Files (x86)\ISS Manager\issmgr.exe REVISED PO -TSTC22-1011_Pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1484 schtasks.exe 1020 schtasks.exe 1904 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2012 REVISED PO -TSTC22-1011_Pdf.exe 2012 REVISED PO -TSTC22-1011_Pdf.exe 520 powershell.exe 564 REVISED PO -TSTC22-1011_Pdf.exe 564 REVISED PO -TSTC22-1011_Pdf.exe 564 REVISED PO -TSTC22-1011_Pdf.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 564 REVISED PO -TSTC22-1011_Pdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2012 REVISED PO -TSTC22-1011_Pdf.exe Token: SeDebugPrivilege 520 powershell.exe Token: SeDebugPrivilege 564 REVISED PO -TSTC22-1011_Pdf.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 2012 wrote to memory of 520 2012 REVISED PO -TSTC22-1011_Pdf.exe 28 PID 2012 wrote to memory of 520 2012 REVISED PO -TSTC22-1011_Pdf.exe 28 PID 2012 wrote to memory of 520 2012 REVISED PO -TSTC22-1011_Pdf.exe 28 PID 2012 wrote to memory of 520 2012 REVISED PO -TSTC22-1011_Pdf.exe 28 PID 2012 wrote to memory of 1904 2012 REVISED PO -TSTC22-1011_Pdf.exe 30 PID 2012 wrote to memory of 1904 2012 REVISED PO -TSTC22-1011_Pdf.exe 30 PID 2012 wrote to memory of 1904 2012 REVISED PO -TSTC22-1011_Pdf.exe 30 PID 2012 wrote to memory of 1904 2012 REVISED PO -TSTC22-1011_Pdf.exe 30 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 2012 wrote to memory of 564 2012 REVISED PO -TSTC22-1011_Pdf.exe 32 PID 564 wrote to memory of 1484 564 REVISED PO -TSTC22-1011_Pdf.exe 33 PID 564 wrote to memory of 1484 564 REVISED PO -TSTC22-1011_Pdf.exe 33 PID 564 wrote to memory of 1484 564 REVISED PO -TSTC22-1011_Pdf.exe 33 PID 564 wrote to memory of 1484 564 REVISED PO -TSTC22-1011_Pdf.exe 33 PID 564 wrote to memory of 1020 564 REVISED PO -TSTC22-1011_Pdf.exe 35 PID 564 wrote to memory of 1020 564 REVISED PO -TSTC22-1011_Pdf.exe 35 PID 564 wrote to memory of 1020 564 REVISED PO -TSTC22-1011_Pdf.exe 35 PID 564 wrote to memory of 1020 564 REVISED PO -TSTC22-1011_Pdf.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\REVISED PO -TSTC22-1011_Pdf.exe"C:\Users\Admin\AppData\Local\Temp\REVISED PO -TSTC22-1011_Pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uuPTAGHRzGi.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:520
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uuPTAGHRzGi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA600.tmp"2⤵
- Creates scheduled task(s)
PID:1904
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C:\Users\Admin\AppData\Local\Temp\REVISED PO -TSTC22-1011_Pdf.exe"C:\Users\Admin\AppData\Local\Temp\REVISED PO -TSTC22-1011_Pdf.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAAB2.tmp"3⤵
- Creates scheduled task(s)
PID:1484
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAB4F.tmp"3⤵
- Creates scheduled task(s)
PID:1020
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD53b39ef848eaf4ea5a27da018bd2de1ed
SHA1ffb5be4dd0076143b79f27f95e0feb02d5bdbb8b
SHA25695dedca679f3ef361e3a9b06932734302597b7061aa4dbd7a2d5f7da35f16f4a
SHA512be028b1140906e98fdaf08e9a7516d20166c55639e18984906e9f83dd91ba1033a027babbf0275a16f31bda8fe62d9b22e33b0a0cb094180086080016ec30fb1
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Filesize
1KB
MD5009102eae052bce5463af965c53565c9
SHA1f6291373c2ebf187e3724dc7d4f9c7baf57173bb
SHA256db50cd26a722c0e7c0bf9810f8a24fb79db2c28dee5e5473b32cdafb4c440421
SHA5126103132503be7601ee96a1f75a83923c436881983d2f451cab298a3376f88b5614e5567c088364c5c50ad03f79d121e174b86c285b2a846d73bf2bd39399a2cd
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Filesize
1KB
MD5ea7095fa975a5ac043c9de2899ce61d0
SHA1ba4e21d0728fb1b4b87006c2e8ceb6109c9046a3
SHA2565a1ba7b1b91e0bb7aedcfa82dc687972abb31f72ae1613ac586938ef0843f30f
SHA512b52c8f1b58f263a3d1ad1ef9939167853a5f55033d9ad8976130174c7118407711a0703266c7d2d542bc2ca8119f875e35cc791b9dd70ef83b5310ac1e7cd1cb