nanocore | 93fbd22736e6ace7b4ce940c844da401612c65ddf3cd0f41730dfc6f806be9f1

General

Target

order 201233.exe
Size

247KB
MD5

11631f12ae7944e8d4441bfce27616c7
SHA1

76c25fc619e8b493fef04c6bc8eaa51e7e2d18be
SHA256

d5cf0f84fb06a4d4295186edda23d54c7bbc694770c916875c7b5f4a1b9472ad
SHA512

43c86d25b6a293442f49cdbb3d681700e6633aa1daf6f77c5196e47f43b2f3e3687a1c4955885cbf0816ed7fb6b021585917d4875a31e5023b7a22fea97ffb69
SSDEEP

6144:no/hzvKTHlLCnyCOMFGaISfxFaLklWgq1AWZQjkAqZ:nVTFAyCFIuFaOWHFgkRZ

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.0.0

C2

new555.ddns.net:9033

Mutex

8c6886dd-00a9-4e78-8687-7d54c16b36b3

Attributes

activate_away_mode
true
backup_connection_host
new555.ddns.net
backup_dns_server
buffer_size
65535
build_time
2014-08-19T18:58:32.196379736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
9033
default_group
german
enable_debug_mode
true
gc_threshold
1.0448576e+08
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0448576e+08
mutex
8c6886dd-00a9-4e78-8687-7d54c16b36b3
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
new555.ddns.net
primary_dns_server
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
1.2.0.0
wan_timeout
8000

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\nSZU8duT\\od92plM.exe,explorer.exe"	reg.exe

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Executes dropped EXE 1 IoCs

Processes:

order 201233.exe

pid process

4908 order 201233.exe

pid	process
4908	order 201233.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

order 201233.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	order 201233.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

order 201233.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Manager = "C:\\Program Files (x86)\\PCI Manager\\pcimgr.exe"	order 201233.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

order 201233.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA order 201233.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

order 201233.exe

description pid process target process

PID 1636 set thread context of 4908 1636 order 201233.exe order 201233.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	order 201233.exe

description	pid	process	target process
PID 1636 set thread context of 4908	1636	order 201233.exe	order 201233.exe

Drops file in Program Files directory 2 IoCs

Processes:

order 201233.exe

description	ioc	process
File created	C:\Program Files (x86)\PCI Manager\pcimgr.exe	order 201233.exe
File opened for modification	C:\Program Files (x86)\PCI Manager\pcimgr.exe	order 201233.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

order 201233.exeorder 201233.exe

pid	process
1636	order 201233.exe
1636	order 201233.exe
4908	order 201233.exe
4908	order 201233.exe
4908	order 201233.exe
4908	order 201233.exe
4908	order 201233.exe
4908	order 201233.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

order 201233.exe

pid process

4908 order 201233.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

order 201233.exeorder 201233.exe

description pid process

Token: SeDebugPrivilege 1636 order 201233.exe
Token: SeDebugPrivilege 4908 order 201233.exe

pid	process
4908	order 201233.exe

description	pid	process
Token: SeDebugPrivilege	1636	order 201233.exe
Token: SeDebugPrivilege	4908	order 201233.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

order 201233.execmd.exe

description	pid	process	target process
PID 1636 wrote to memory of 948	1636	order 201233.exe	cmd.exe
PID 1636 wrote to memory of 948	1636	order 201233.exe	cmd.exe
PID 1636 wrote to memory of 948	1636	order 201233.exe	cmd.exe
PID 948 wrote to memory of 4644	948	cmd.exe	reg.exe
PID 948 wrote to memory of 4644	948	cmd.exe	reg.exe
PID 948 wrote to memory of 4644	948	cmd.exe	reg.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe
PID 1636 wrote to memory of 4908	1636	order 201233.exe	order 201233.exe

C:\Users\Admin\AppData\Local\Temp\order 201233.exe
"C:\Users\Admin\AppData\Local\Temp\order 201233.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\nSZU8duT\od92plM.exe,explorer.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\nSZU8duT\od92plM.exe,explorer.exe"
3⤵
- Modifies WinLogon for persistence
PID:4644

C:\Users\Admin\AppData\Local\Temp\order 201233.exe
"C:\Users\Admin\AppData\Local\Temp\order 201233.exe"
2⤵
- Executes dropped EXE
- 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
PID:4908

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\order 201233.exe
Filesize
247KB

MD5
11631f12ae7944e8d4441bfce27616c7

SHA1
76c25fc619e8b493fef04c6bc8eaa51e7e2d18be

SHA256
d5cf0f84fb06a4d4295186edda23d54c7bbc694770c916875c7b5f4a1b9472ad

SHA512
43c86d25b6a293442f49cdbb3d681700e6633aa1daf6f77c5196e47f43b2f3e3687a1c4955885cbf0816ed7fb6b021585917d4875a31e5023b7a22fea97ffb69

Download Submit
memory/948-134-0x0000000000000000-mapping.dmp

Download
memory/1636-132-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1636-133-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1636-139-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4644-135-0x0000000000000000-mapping.dmp

Download
memory/4908-136-0x0000000000000000-mapping.dmp

Download
memory/4908-137-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4908-140-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4908-141-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads