Analysis
-
max time kernel
1198s -
max time network
1229s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
15-10-2021 15:46
Static task
static1
Behavioral task
behavioral1
Sample
FSD~039876363-30987.Com.exe
Resource
win7-en-20210920
General
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Target
FSD~039876363-30987.Com.exe
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Size
391KB
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MD5
6dff455b59af4478e43bf4ef5daa9f6f
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SHA1
eff4fcfb89c8d221b1f3e3d8230fc233a573a05b
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SHA256
5a0df8cd9f2c4c9d18dab936e866ba17c16c1e0014aed83d163c63934138b0ea
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SHA512
441f04492df324cbc84b16ce31c5b0e0ff5296996ef9acd17e46910916ad5d8b3f4702a00cd0bac827205ec74a5414041ed351677014bc84b0ffec774c130d4a
Malware Config
Extracted
nanocore
1.2.2.0
1116.hopto.org:1116
185.140.53.9:1116
909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9
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activate_away_mode
true
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backup_connection_host
185.140.53.9
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2021-02-16T08:43:19.524585136Z
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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
1116
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default_group
1116
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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
909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
1116.hopto.org
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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
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
FSD~039876363-30987.Com.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe" FSD~039876363-30987.Com.exe -
Processes:
FSD~039876363-30987.Com.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA FSD~039876363-30987.Com.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
FSD~039876363-30987.Com.exedescription pid process target process PID 1228 set thread context of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe -
Drops file in Program Files directory 2 IoCs
Processes:
FSD~039876363-30987.Com.exedescription ioc process File created C:\Program Files (x86)\UDP Subsystem\udpss.exe FSD~039876363-30987.Com.exe File opened for modification C:\Program Files (x86)\UDP Subsystem\udpss.exe FSD~039876363-30987.Com.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.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 1344 schtasks.exe 1788 schtasks.exe 896 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
FSD~039876363-30987.Com.exeFSD~039876363-30987.Com.exepid process 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1228 FSD~039876363-30987.Com.exe 1356 FSD~039876363-30987.Com.exe 1356 FSD~039876363-30987.Com.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
FSD~039876363-30987.Com.exepid process 1356 FSD~039876363-30987.Com.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
FSD~039876363-30987.Com.exeFSD~039876363-30987.Com.exedescription pid process Token: SeDebugPrivilege 1228 FSD~039876363-30987.Com.exe Token: SeDebugPrivilege 1356 FSD~039876363-30987.Com.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
FSD~039876363-30987.Com.exeFSD~039876363-30987.Com.exedescription pid process target process PID 1228 wrote to memory of 896 1228 FSD~039876363-30987.Com.exe schtasks.exe PID 1228 wrote to memory of 896 1228 FSD~039876363-30987.Com.exe schtasks.exe PID 1228 wrote to memory of 896 1228 FSD~039876363-30987.Com.exe schtasks.exe PID 1228 wrote to memory of 896 1228 FSD~039876363-30987.Com.exe schtasks.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1228 wrote to memory of 1356 1228 FSD~039876363-30987.Com.exe FSD~039876363-30987.Com.exe PID 1356 wrote to memory of 1344 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1344 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1344 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1344 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1788 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1788 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1788 1356 FSD~039876363-30987.Com.exe schtasks.exe PID 1356 wrote to memory of 1788 1356 FSD~039876363-30987.Com.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe"C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KuepDBljyJhFlD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD21E.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe"C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.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
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD52A.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD5D6.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpD52A.tmpMD5
6763a064e870bfa0ead9c369e080edc8
SHA1f0e976deb2b11bee24c26dd0ddcab09a25a51413
SHA2569fc2ba2a7fa05050a39096ba179a416439647f033dec64dc4502c9f20a814c7b
SHA512ee5f9cff19197f83517f5b51d3ae2f4a7fdcff28698c0f280392b7dd828ecddad0c3cda542fc78a20f947cc514bec6b686fb194fa3c0698f63835271f8639207
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C:\Users\Admin\AppData\Local\Temp\tmpD5D6.tmpMD5
c4aecdef99eba873119e79616df3f4b0
SHA1b1b3af52655fb633eed909dfed05b64fbbfac37c
SHA25624fd0d87bea36a024449a95f808aaa174e4ed9003cb8a427b67c02411b8a2e0b
SHA512e3f44b07267fccf4f5abd4efe80f2b037ddadc4cb898bdfca9d21ac5d79fcac828950065c2060d3ce125ee971fc3096183afee5287ba9951fbbda7257d8ed8d4
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memory/896-59-0x0000000000000000-mapping.dmp
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memory/1228-53-0x00000000009F0000-0x00000000009F1000-memory.dmpFilesize
4KB
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memory/1228-55-0x0000000074F81000-0x0000000074F83000-memory.dmpFilesize
8KB
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memory/1228-56-0x0000000000490000-0x0000000000495000-memory.dmpFilesize
20KB
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memory/1228-57-0x00000000042F0000-0x00000000042F1000-memory.dmpFilesize
4KB
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memory/1228-58-0x00000000049D0000-0x0000000004A24000-memory.dmpFilesize
336KB
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memory/1344-68-0x0000000000000000-mapping.dmp
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memory/1356-64-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-65-0x000000000041E792-mapping.dmp
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memory/1356-66-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-62-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-61-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-60-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1356-72-0x00000000047E0000-0x00000000047E1000-memory.dmpFilesize
4KB
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memory/1356-73-0x0000000000540000-0x0000000000545000-memory.dmpFilesize
20KB
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memory/1356-74-0x0000000000590000-0x00000000005A9000-memory.dmpFilesize
100KB
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memory/1356-75-0x00000000005F0000-0x00000000005F3000-memory.dmpFilesize
12KB
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memory/1788-70-0x0000000000000000-mapping.dmp