nanocore | 640bb73cc2576884be85bb0018497e77fa684493fdda95a711f5936bab002b18

General

Target

FedEx's AWB#5305323204643.exe
Size

20KB
MD5

b3e24269e8f4d613dab013ba26e08f8a
SHA1

81adf63b98379e81b82925ccc64c7a219b81a7fd
SHA256

3dfc4c40e95c69c2f87baf8ce364a350823404e78bb4ed97807330f398753f76
SHA512

477d9eefcd769cceb181df5d11038b8d9ca6b8a42d027b15cdb0c7eb0999e228041b0a86fa746ed26b1adf1e2bc73a83acff9751fba9816570945ca0d23176ea

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.157.160.233:2212

annapro.linkpc.net:2212

Mutex

5c958888-f81c-42a4-939d-31983a2cd9ba

Attributes

activate_away_mode
true
backup_connection_host
annapro.linkpc.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-24T06:39:59.095270636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
2212
default_group
wuzzy122
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
5c958888-f81c-42a4-939d-31983a2cd9ba
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
185.157.160.233
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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
Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Nirsoft 3 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe	Nirsoft
C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe	Nirsoft
C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe	Nirsoft

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

3644 AdvancedRun.exe
2844 AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

FedEx's AWB#5305323204643.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	FedEx's AWB#5305323204643.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\FedEx's AWB#5305323204643.exe = "0"	FedEx's AWB#5305323204643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	FedEx's AWB#5305323204643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	FedEx's AWB#5305323204643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	FedEx's AWB#5305323204643.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	FedEx's AWB#5305323204643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	FedEx's AWB#5305323204643.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	FedEx's AWB#5305323204643.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	FedEx's AWB#5305323204643.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	FedEx's AWB#5305323204643.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs

Processes:

FedEx's AWB#5305323204643.exe

pid	process
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

FedEx's AWB#5305323204643.exe

description pid process target process

PID 4020 set thread context of 2868 4020 FedEx's AWB#5305323204643.exe installutil.exe
Drops file in Windows directory 1 IoCs

Processes:

WerFault.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp WerFault.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4036 4020 WerFault.exe FedEx's AWB#5305323204643.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1292 timeout.exe

description	pid	process	target process
PID 4020 set thread context of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe

description	ioc	process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	WerFault.exe

pid	pid_target	process	target process
4036	4020	WerFault.exe	FedEx's AWB#5305323204643.exe

pid	process
1292	timeout.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exeFedEx's AWB#5305323204643.exeWerFault.exeinstallutil.exe

pid	process
3644	AdvancedRun.exe
3644	AdvancedRun.exe
3644	AdvancedRun.exe
3644	AdvancedRun.exe
2844	AdvancedRun.exe
2844	AdvancedRun.exe
2844	AdvancedRun.exe
2844	AdvancedRun.exe
1308	powershell.exe
4020	FedEx's AWB#5305323204643.exe
1308	powershell.exe
4020	FedEx's AWB#5305323204643.exe
4020	FedEx's AWB#5305323204643.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
4036	WerFault.exe
1308	powershell.exe
2868	installutil.exe
2868	installutil.exe
2868	installutil.exe
2868	installutil.exe
2868	installutil.exe
2868	installutil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

installutil.exe

pid process

2868 installutil.exe

pid	process
2868	installutil.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

FedEx's AWB#5305323204643.exeAdvancedRun.exeAdvancedRun.exepowershell.exeWerFault.exeinstallutil.exe

description	pid	process
Token: SeDebugPrivilege	4020	FedEx's AWB#5305323204643.exe
Token: SeDebugPrivilege	3644	AdvancedRun.exe
Token: SeImpersonatePrivilege	3644	AdvancedRun.exe
Token: SeDebugPrivilege	2844	AdvancedRun.exe
Token: SeImpersonatePrivilege	2844	AdvancedRun.exe
Token: SeDebugPrivilege	1308	powershell.exe
Token: SeRestorePrivilege	4036	WerFault.exe
Token: SeBackupPrivilege	4036	WerFault.exe
Token: SeBackupPrivilege	4036	WerFault.exe
Token: SeDebugPrivilege	4036	WerFault.exe
Token: SeDebugPrivilege	2868	installutil.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

FedEx's AWB#5305323204643.exeAdvancedRun.execmd.exe

description	pid	process	target process
PID 4020 wrote to memory of 3644	4020	FedEx's AWB#5305323204643.exe	AdvancedRun.exe
PID 4020 wrote to memory of 3644	4020	FedEx's AWB#5305323204643.exe	AdvancedRun.exe
PID 4020 wrote to memory of 3644	4020	FedEx's AWB#5305323204643.exe	AdvancedRun.exe
PID 3644 wrote to memory of 2844	3644	AdvancedRun.exe	AdvancedRun.exe
PID 3644 wrote to memory of 2844	3644	AdvancedRun.exe	AdvancedRun.exe
PID 3644 wrote to memory of 2844	3644	AdvancedRun.exe	AdvancedRun.exe
PID 4020 wrote to memory of 1308	4020	FedEx's AWB#5305323204643.exe	powershell.exe
PID 4020 wrote to memory of 1308	4020	FedEx's AWB#5305323204643.exe	powershell.exe
PID 4020 wrote to memory of 1308	4020	FedEx's AWB#5305323204643.exe	powershell.exe
PID 4020 wrote to memory of 2948	4020	FedEx's AWB#5305323204643.exe	cmd.exe
PID 4020 wrote to memory of 2948	4020	FedEx's AWB#5305323204643.exe	cmd.exe
PID 4020 wrote to memory of 2948	4020	FedEx's AWB#5305323204643.exe	cmd.exe
PID 2948 wrote to memory of 1292	2948	cmd.exe	timeout.exe
PID 2948 wrote to memory of 1292	2948	cmd.exe	timeout.exe
PID 2948 wrote to memory of 1292	2948	cmd.exe	timeout.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe
PID 4020 wrote to memory of 2868	4020	FedEx's AWB#5305323204643.exe	installutil.exe

C:\Users\Admin\AppData\Local\Temp\FedEx's AWB#5305323204643.exe
"C:\Users\Admin\AppData\Local\Temp\FedEx's AWB#5305323204643.exe"
1⤵
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020

C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3644

C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe" /SpecialRun 4101d8 3644
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2844

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\FedEx's AWB#5305323204643.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1308

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:2948

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1292

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 2072
2⤵
- Drops file in Windows directory
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Disabling Security Tools

3

T1089

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\f4c06bb1-11cb-454f-ba4d-2543aa49c69f\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
memory/1292-21-0x0000000000000000-mapping.dmp

Download
memory/1308-33-0x0000000007DE0000-0x0000000007DE1000-memory.dmp

Filesize
4KB

Download
memory/1308-26-0x0000000007460000-0x0000000007461000-memory.dmp

Filesize
4KB

Download
memory/1308-48-0x0000000006F83000-0x0000000006F84000-memory.dmp

Filesize
4KB

Download
memory/1308-40-0x0000000008580000-0x0000000008581000-memory.dmp

Filesize
4KB

Download
memory/1308-34-0x00000000086D0000-0x00000000086D1000-memory.dmp

Filesize
4KB

Download
memory/1308-29-0x0000000007F00000-0x0000000007F01000-memory.dmp

Filesize
4KB

Download
memory/1308-28-0x0000000007BF0000-0x0000000007BF1000-memory.dmp

Filesize
4KB

Download
memory/1308-27-0x0000000007C60000-0x0000000007C61000-memory.dmp

Filesize
4KB

Download
memory/1308-25-0x0000000006F82000-0x0000000006F83000-memory.dmp

Filesize
4KB

Download
memory/1308-18-0x0000000000000000-mapping.dmp

Download
memory/1308-24-0x0000000006F80000-0x0000000006F81000-memory.dmp

Filesize
4KB

Download
memory/1308-20-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/1308-22-0x0000000004A80000-0x0000000004A81000-memory.dmp

Filesize
4KB

Download
memory/1308-23-0x00000000075C0000-0x00000000075C1000-memory.dmp

Filesize
4KB

Download
memory/2844-16-0x0000000000000000-mapping.dmp

Download
memory/2868-44-0x0000000005A30000-0x0000000005A49000-memory.dmp

Filesize
100KB

Download
memory/2868-43-0x00000000051C0000-0x00000000051C5000-memory.dmp

Filesize
20KB

Download
memory/2868-32-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/2868-47-0x0000000004F03000-0x0000000004F05000-memory.dmp

Filesize
8KB

Download
memory/2868-46-0x0000000004F00000-0x0000000004F01000-memory.dmp

Filesize
4KB

Download
memory/2868-31-0x000000000041E792-mapping.dmp

Download
memory/2868-30-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2868-45-0x0000000005C60000-0x0000000005C63000-memory.dmp

Filesize
12KB

Download
memory/2948-19-0x0000000000000000-mapping.dmp

Download
memory/3644-13-0x0000000000000000-mapping.dmp

Download
memory/4020-12-0x0000000005400000-0x0000000005401000-memory.dmp

Filesize
4KB

Download
memory/4020-9-0x0000000005D80000-0x0000000005E29000-memory.dmp

Filesize
676KB

Download
memory/4020-11-0x0000000009180000-0x0000000009181000-memory.dmp

Filesize
4KB

Download
memory/4020-3-0x0000000000B70000-0x0000000000B71000-memory.dmp

Filesize
4KB

Download
memory/4020-10-0x00000000095A0000-0x00000000095A1000-memory.dmp

Filesize
4KB

Download
memory/4020-5-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download
memory/4020-6-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

Filesize
4KB

Download
memory/4020-2-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/4036-42-0x00000000043D0000-0x00000000043D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads