nanocore | a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343

General

Target

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
Size

591KB
MD5

36d910db5480443e681e9ccaae98daa5
SHA1

37aede51253ea0e6e3c032e5131e51285654e711
SHA256

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343
SHA512

e7556c058431cc618d0482e108f6fb78427c751c661c32c1d006a4bdc63f5a6801b08e7aee87b9a0e8025be33ce7a11d2ee7360725552630552ef1bd4d97e50c
SSDEEP

12288:6XHafsJMsvTewct5Fc4QqGNwTgQToxuf0NsUcp2Zi7XLVH9EW:WafQMUTe5e4QpwI00NmOM0

Score

10^/10

nanocore discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

213.152.161.181:45808

Mutex

724426ed-9454-4c88-a403-247ed8c8ccb6

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
84.200.70.40
buffer_size
65535
build_time
2024-03-23T08:16:32.230976436Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45808
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
724426ed-9454-4c88-a403-247ed8c8ccb6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
213.152.161.181
primary_dns_server
84.200.69.80
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
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1864 powershell.exe

pid	process
1864	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Monitor = "C:\\Program Files (x86)\\SMTP Monitor\\smtpmon.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe

description	pid	process	target process
PID 2152 set thread context of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Monitor\smtpmon.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Monitor\smtpmon.exe	RegSvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

schtasks.exea9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeschtasks.exeRegSvcs.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2736 schtasks.exe
2796 schtasks.exe
2304 schtasks.exe

pid	process
2736	schtasks.exe
2796	schtasks.exe
2304	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeRegSvcs.exe

pid	process
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
1864	powershell.exe
2104	RegSvcs.exe
2104	RegSvcs.exe
2104	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

2104 RegSvcs.exe

pid	process
2104	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
Token: SeDebugPrivilege	1864	powershell.exe
Token: SeDebugPrivilege	2104	RegSvcs.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exeRegSvcs.exe

description	pid	process	target process
PID 2152 wrote to memory of 1864	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	powershell.exe
PID 2152 wrote to memory of 1864	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	powershell.exe
PID 2152 wrote to memory of 1864	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	powershell.exe
PID 2152 wrote to memory of 1864	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	powershell.exe
PID 2152 wrote to memory of 2736	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	schtasks.exe
PID 2152 wrote to memory of 2736	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	schtasks.exe
PID 2152 wrote to memory of 2736	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	schtasks.exe
PID 2152 wrote to memory of 2736	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	schtasks.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2152 wrote to memory of 2104	2152	a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe	RegSvcs.exe
PID 2104 wrote to memory of 2796	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2796	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2796	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2796	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2304	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2304	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2304	2104	RegSvcs.exe	schtasks.exe
PID 2104 wrote to memory of 2304	2104	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
"C:\Users\Admin\AppData\Local\Temp\a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gLCtqBlZtm.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1864

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gLCtqBlZtm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA4B8.tmp"
2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Adds Run key to start application
- 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:2104

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA959.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2796

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAB2E.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2304

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA4B8.tmp
Filesize
1KB

MD5
c35be679b40bc5535110a6d9cbc1f80c

SHA1
4a4671eea5ff72f142e061a4b4a95c6fed93af53

SHA256
05c883d9e5f3b682c6d70875b05b0c10a1cd96c23c3195d716460f06058db6ce

SHA512
2cf9f979ffab0a464adb4df1f82ec1e5ea08b237000b5b1e09937195d8fc89f22c9631ccf074f55e1192ae2514e643193ff1e9d51ee6082a348ff18cde0f0c48

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA959.tmp
Filesize
1KB

MD5
8cad1b41587ced0f1e74396794f31d58

SHA1
11054bf74fcf5e8e412768035e4dae43aa7b710f

SHA256
3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

SHA512
99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAB2E.tmp
Filesize
1KB

MD5
ffa9e95100598072ca693c672478895f

SHA1
518514c3112c51b2b21d36d3262bec72e83d025d

SHA256
1e45d509d390405f93e9f3b64ff497e61cf9bf791c015dde4499184b7a681eb3

SHA512
010d14ae46a23cef14cf1de9a06c8e6ff26ca86c10ebdd3d5f16f4ffbeacc3df7ca18fafda097e00bf747fb997c5c4f9d62646e47a3b501da7c630689c28d6df

Download Submit
memory/2104-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2104-19-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-38-0x0000000000AC0000-0x0000000000ACA000-memory.dmp

Filesize
40KB

Download
memory/2104-36-0x0000000000610000-0x000000000061C000-memory.dmp

Filesize
48KB

Download
memory/2104-37-0x0000000000620000-0x000000000063E000-memory.dmp

Filesize
120KB

Download
memory/2104-35-0x00000000005C0000-0x00000000005CA000-memory.dmp

Filesize
40KB

Download
memory/2104-21-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-24-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-25-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-26-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-17-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2104-15-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2152-4-0x00000000004B0000-0x00000000004BE000-memory.dmp

Filesize
56KB

Download
memory/2152-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2152-27-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-1-0x00000000003E0000-0x000000000047A000-memory.dmp

Filesize
616KB

Download
memory/2152-3-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download
memory/2152-11-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-6-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2152-5-0x0000000004AE0000-0x0000000004B5C000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads