nanocore | d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4

Analysis

max time kernel
139s
max time network
150s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/09/2022, 21:47

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General

Target

SecuriteInfo.com.Win32.CrypterX-gen.exe
Size

564KB
MD5

d2511f548930bc0a616afb4bf2f5eb59
SHA1

dfd9d5479816b67c213fa35f87280c192d1a20a1
SHA256

d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4
SHA512

e9922aefdd68bfbb1773ccf75f2412af987e67570d876bfd99aee5fd46c616a430fe8ec9fc1917a797ca3d433d94cc81e87ca5fe8eea38638361b4bbacd6651e
SSDEEP

12288:g8l02b1zzUFFiRUUWgSXGjITqZfs+Bog:blfzzUFAKDlW8Tqf

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

brewsterchristophe.ddns.net:5899

194,147,5,75:5899

Mutex

b8aebc29-8c64-444f-99e6-dc4122e9bbfc

Attributes

activate_away_mode
true
backup_connection_host
194,147,5,75
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T03:26:40.572298236Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5899
default_group
Default
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
b8aebc29-8c64-444f-99e6-dc4122e9bbfc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brewsterchristophe.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 1 IoCs

pid	Process
1556	Bin.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Bin = "C:\\Users\\Admin\\Desktop\\Bin.exe"	reg.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1556 set thread context of 1160	1556	Bin.exe	36

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	RegAsm.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1200	schtasks.exe
364	schtasks.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
456	PING.EXE
1012	PING.EXE
1192	PING.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
896	SecuriteInfo.com.Win32.CrypterX-gen.exe
896	SecuriteInfo.com.Win32.CrypterX-gen.exe
896	SecuriteInfo.com.Win32.CrypterX-gen.exe
1556	Bin.exe
1556	Bin.exe
1160	RegAsm.exe
1160	RegAsm.exe
1160	RegAsm.exe
1160	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	896	SecuriteInfo.com.Win32.CrypterX-gen.exe
Token: SeDebugPrivilege	1556	Bin.exe
Token: SeDebugPrivilege	1160	RegAsm.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 904	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	26
PID 896 wrote to memory of 904	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	26
PID 896 wrote to memory of 904	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	26
PID 896 wrote to memory of 904	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	26
PID 904 wrote to memory of 456	904	cmd.exe	28
PID 904 wrote to memory of 456	904	cmd.exe	28
PID 904 wrote to memory of 456	904	cmd.exe	28
PID 904 wrote to memory of 456	904	cmd.exe	28
PID 896 wrote to memory of 1188	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	29
PID 896 wrote to memory of 1188	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	29
PID 896 wrote to memory of 1188	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	29
PID 896 wrote to memory of 1188	896	SecuriteInfo.com.Win32.CrypterX-gen.exe	29
PID 1188 wrote to memory of 1012	1188	cmd.exe	31
PID 1188 wrote to memory of 1012	1188	cmd.exe	31
PID 1188 wrote to memory of 1012	1188	cmd.exe	31
PID 1188 wrote to memory of 1012	1188	cmd.exe	31
PID 904 wrote to memory of 1812	904	cmd.exe	32
PID 904 wrote to memory of 1812	904	cmd.exe	32
PID 904 wrote to memory of 1812	904	cmd.exe	32
PID 904 wrote to memory of 1812	904	cmd.exe	32
PID 1188 wrote to memory of 1192	1188	cmd.exe	33
PID 1188 wrote to memory of 1192	1188	cmd.exe	33
PID 1188 wrote to memory of 1192	1188	cmd.exe	33
PID 1188 wrote to memory of 1192	1188	cmd.exe	33
PID 1188 wrote to memory of 1556	1188	cmd.exe	35
PID 1188 wrote to memory of 1556	1188	cmd.exe	35
PID 1188 wrote to memory of 1556	1188	cmd.exe	35
PID 1188 wrote to memory of 1556	1188	cmd.exe	35
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1556 wrote to memory of 1160	1556	Bin.exe	36
PID 1160 wrote to memory of 1200	1160	RegAsm.exe	37
PID 1160 wrote to memory of 1200	1160	RegAsm.exe	37
PID 1160 wrote to memory of 1200	1160	RegAsm.exe	37
PID 1160 wrote to memory of 1200	1160	RegAsm.exe	37
PID 1160 wrote to memory of 364	1160	RegAsm.exe	39
PID 1160 wrote to memory of 364	1160	RegAsm.exe	39
PID 1160 wrote to memory of 364	1160	RegAsm.exe	39
PID 1160 wrote to memory of 364	1160	RegAsm.exe	39

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 14 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Bin" /t REG_SZ /d "C:\Users\Admin\Desktop\Bin.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 14
    3⤵
    - Runs ping.exe
    PID:456
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Bin" /t REG_SZ /d "C:\Users\Admin\Desktop\Bin.exe"
    3⤵
    - Adds Run key to start application
    PID:1812
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 19 > nul && copy "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.exe" "C:\Users\Admin\Desktop\Bin.exe" && ping 127.0.0.1 -n 19 > nul && "C:\Users\Admin\Desktop\Bin.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 19
    3⤵
    - Runs ping.exe
    PID:1012
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 19
    3⤵
    - Runs ping.exe
    PID:1192
- - C:\Users\Admin\Desktop\Bin.exe
    "C:\Users\Admin\Desktop\Bin.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1556
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in Program Files directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1160
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6F57.tmp"
        5⤵
        Creates scheduled task(s)
        
        PID:1200
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp70AF.tmp"
        5⤵
        Creates scheduled task(s)
        
        PID:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6F57.tmp

Filesize
1KB

MD5
48ef7fa9033389ad7929d7a6b9d10298

SHA1
9db6cb7325c8bdf66a15f7b5f34703709a45aeb6

SHA256
0c1b5f67eeb276d1d4205b138ce32bc6149924e02281a2db8e4623a700e88f15

SHA512
ac8bd104ecbacc9bccce9e087f67e5b18072d59367ccd31d4e66132b6baaea520cba5b9b59464483d86abf74826b382c402f12e9a586c99bda8c78a0de33944e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp70AF.tmp

Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
C:\Users\Admin\Desktop\Bin.exe

Filesize
564KB

MD5
d2511f548930bc0a616afb4bf2f5eb59

SHA1
dfd9d5479816b67c213fa35f87280c192d1a20a1

SHA256
d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4

SHA512
e9922aefdd68bfbb1773ccf75f2412af987e67570d876bfd99aee5fd46c616a430fe8ec9fc1917a797ca3d433d94cc81e87ca5fe8eea38638361b4bbacd6651e

Download Submit
C:\Users\Admin\Desktop\Bin.exe

Filesize
564KB

MD5
d2511f548930bc0a616afb4bf2f5eb59

SHA1
dfd9d5479816b67c213fa35f87280c192d1a20a1

SHA256
d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4

SHA512
e9922aefdd68bfbb1773ccf75f2412af987e67570d876bfd99aee5fd46c616a430fe8ec9fc1917a797ca3d433d94cc81e87ca5fe8eea38638361b4bbacd6651e

Download Submit
memory/896-55-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/896-56-0x0000000001DC0000-0x0000000001DF4000-memory.dmp

Filesize
208KB

Download
memory/896-57-0x0000000001F00000-0x0000000001F18000-memory.dmp

Filesize
96KB

Download
memory/896-54-0x0000000000070000-0x0000000000102000-memory.dmp

Filesize
584KB

Download
memory/1160-93-0x0000000000510000-0x000000000051E000-memory.dmp

Filesize
56KB

Download
memory/1160-94-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1160-103-0x0000000000495000-0x00000000004A6000-memory.dmp

Filesize
68KB

Download
memory/1160-102-0x00000000008B0000-0x00000000008C4000-memory.dmp

Filesize
80KB

Download
memory/1160-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-74-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-75-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-77-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-80-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-82-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1160-101-0x0000000000940000-0x000000000096E000-memory.dmp

Filesize
184KB

Download
memory/1160-100-0x0000000000890000-0x000000000089E000-memory.dmp

Filesize
56KB

Download
memory/1160-99-0x0000000000840000-0x0000000000854000-memory.dmp

Filesize
80KB

Download
memory/1160-98-0x0000000000830000-0x0000000000840000-memory.dmp

Filesize
64KB

Download
memory/1160-88-0x0000000000290000-0x000000000029A000-memory.dmp

Filesize
40KB

Download
memory/1160-89-0x00000000002A0000-0x00000000002BE000-memory.dmp

Filesize
120KB

Download
memory/1160-90-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/1160-91-0x00000000003F0000-0x0000000000402000-memory.dmp

Filesize
72KB

Download
memory/1160-92-0x00000000005A0000-0x00000000005BA000-memory.dmp

Filesize
104KB

Download
memory/1160-97-0x0000000000820000-0x0000000000834000-memory.dmp

Filesize
80KB

Download
memory/1160-96-0x0000000000670000-0x000000000067E000-memory.dmp

Filesize
56KB

Download
memory/1160-95-0x0000000000660000-0x000000000066C000-memory.dmp

Filesize
48KB

Download
memory/1556-67-0x0000000000FF0000-0x0000000001082000-memory.dmp

Filesize
584KB

Download
memory/1556-70-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Filesize
24KB

Download
memory/1556-69-0x0000000004490000-0x00000000044AA000-memory.dmp

Filesize
104KB

Download