nanocore | 7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df

General

Target

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
Size

191KB
MD5

002852f0383cf0a97a3b174fbe7ecaee
SHA1

eccbeeed0d5b50991aa8113e7401fa1234a5f5b3
SHA256

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df
SHA512

9855fd6a567cefd68d1c795217f3265861517fd54c920428fc2c260b97810395bda57d90ee2373d13931f1c512bec10b7e93f6cdde1f97d540deb3729729d7a0
SSDEEP

3072:H5Pto80z+vFMCnOzS9FL9sGR2uRyR7QPMtdVhdaPRHpevWkXyxgCvPUHOREoP:HM80mniiLU7QPerORHQW8yKCkHOREoP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files\\DHCP Subsystem\\dhcpss.exe"	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

Drops file in Program Files directory 2 IoCs

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

description	ioc	process
File created	C:\Program Files\DHCP Subsystem\dhcpss.exe	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
File opened for modification	C:\Program Files\DHCP Subsystem\dhcpss.exe	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.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

Processes:

schtasks.exeschtasks.exe

pid process

3764 schtasks.exe
4876 schtasks.exe

pid	process
3764	schtasks.exe
4876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

pid	process
2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

pid process

2824 7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

description	pid	process
Token: SeDebugPrivilege	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
Token: SeDebugPrivilege	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe

description	pid	process	target process
PID 2824 wrote to memory of 3764	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe	schtasks.exe
PID 2824 wrote to memory of 3764	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe	schtasks.exe
PID 2824 wrote to memory of 4876	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe	schtasks.exe
PID 2824 wrote to memory of 4876	2824	7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe
"C:\Users\Admin\AppData\Local\Temp\7e37cd55264fa7ff3570d0c35ead3ded1d9f53408672ffc74fa05898955882df.exe"
1⤵
- 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
PID:2824

C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD1EB.tmp"
2⤵
- Creates scheduled task(s)
PID:3764

C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD288.tmp"
2⤵
- Creates scheduled task(s)
PID:4876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD1EB.tmp

Filesize
1KB

MD5
521ce81fe209432c8566387890d5863d

SHA1
883563a879cf2a256e8edf49dafccf017982963d

SHA256
c0e028035e44fc03cfc2418b2174997159e731ced518d6126b16032b6ba4776e

SHA512
efc0ddccd46abf521d423b67afa67f4f632bf8e8057f338d49116f3614a5dac79abbf8dfd7d08141b6f0380cb9431b76ed1a7d1afcf20bdf8ee851f2847b9ae4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD288.tmp

Filesize
1KB

MD5
0fbd9807f0c83972cb1427b4e01f2d12

SHA1
9a1852011cc1771b3e40f3430bbf9ba3713c7c7d

SHA256
5f9a59be7c04f1de60e0fb648b3fa989c62dcefda47c08f2ec31eec42c644535

SHA512
81c962b71040be6d5185435ad661514dd1586ff859218a6a58844d20a77596f349ed96b60d3b62e48456492afd4f546491fdf6ddad4c2d8a0ba33c3ecd5a4d87

Download Submit
memory/2824-132-0x00007FFFC84A0000-0x00007FFFC8ED6000-memory.dmp

Filesize
10.2MB

Download
memory/2824-137-0x000000001C090000-0x000000001C190000-memory.dmp

Filesize
1024KB

Download
memory/2824-138-0x000000001C090000-0x000000001C190000-memory.dmp

Filesize
1024KB

Download
memory/3764-133-0x0000000000000000-mapping.dmp

Download
memory/4876-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads