nanocore | 83d064ee508b2543d3f9fc16f4ed16fee34cf130713d3cee54d5f20ce7f452cc

General

Target

SolaraV2.1 nano.exe
Size

698KB
MD5

0861b1b5f623ebf122b517cd3250357f
SHA1

6ce6bf05c7bad841edeb1c9c5e4772b4d6de9707
SHA256

83d064ee508b2543d3f9fc16f4ed16fee34cf130713d3cee54d5f20ce7f452cc
SHA512

194852228b7ac1763a37c672c4f139548541b026f2d7835b136e5751c11c82dfb3cbaefbc732b29d02900db33ac0324c8be2fc8ab57b179a06fec8e7c73e8c4d
SSDEEP

12288:0LV6BtpmkBl5sqhmzNgpM/9J67+VDNcuOIJfnQLLm:GApfBl5sqhmzNyM/f6ytOsoLS

Score

10^/10

nanocore discovery 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

T1547.001

Modify Registry

T1112

Processes:

SolaraV2.1 nano.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe"	SolaraV2.1 nano.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

SolaraV2.1 nano.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SolaraV2.1 nano.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SolaraV2.1 nano.exe

Drops file in Program Files directory 2 IoCs

Processes:

SolaraV2.1 nano.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	SolaraV2.1 nano.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	SolaraV2.1 nano.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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:

SolaraV2.1 nano.exeschtasks.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SolaraV2.1 nano.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

3468 schtasks.exe
4776 schtasks.exe

pid	process
3468	schtasks.exe
4776	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

SolaraV2.1 nano.exe

pid	process
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe
1932	SolaraV2.1 nano.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SolaraV2.1 nano.exe

pid process

1932 SolaraV2.1 nano.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SolaraV2.1 nano.exe

description pid process

Token: SeDebugPrivilege 1932 SolaraV2.1 nano.exe
Token: SeDebugPrivilege 1932 SolaraV2.1 nano.exe

description	pid	process
Token: SeDebugPrivilege	1932	SolaraV2.1 nano.exe
Token: SeDebugPrivilege	1932	SolaraV2.1 nano.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

SolaraV2.1 nano.exe

description	pid	process	target process
PID 1932 wrote to memory of 3468	1932	SolaraV2.1 nano.exe	schtasks.exe
PID 1932 wrote to memory of 3468	1932	SolaraV2.1 nano.exe	schtasks.exe
PID 1932 wrote to memory of 3468	1932	SolaraV2.1 nano.exe	schtasks.exe
PID 1932 wrote to memory of 4776	1932	SolaraV2.1 nano.exe	schtasks.exe
PID 1932 wrote to memory of 4776	1932	SolaraV2.1 nano.exe	schtasks.exe
PID 1932 wrote to memory of 4776	1932	SolaraV2.1 nano.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\SolaraV2.1 nano.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraV2.1 nano.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- 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:1932

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp67DD.tmp"
2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3468

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp684B.tmp"
2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4776

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4372,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=1016 /prefetch:8
1⤵
PID:5088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp67DD.tmp

Filesize
1KB

MD5
4bb70ae457112a038573b994ab89c3ae

SHA1
7e5057e0034d70f94c17c10438437b138f055780

SHA256
411a8d9306b8233d8dad43faae19467494e84a5458e6e2c461bc9db4c10a940c

SHA512
aaba48de49eb6fef60ec38e3f9f7ec3b4fc5962ff95259c9362afd01a30c6d290475b4c9c4dc5ba442de106ad4bde38d28768caf3f6aaf309e613cc115711dd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp684B.tmp

Filesize
1KB

MD5
a246b3561d823177f3586e629f144233

SHA1
0f05d12e55a1d2e5e6a4f307c193882fba093315

SHA256
6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52

SHA512
4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

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memory/1932-0-0x0000000074D62000-0x0000000074D63000-memory.dmp

Filesize
4KB

Download
memory/1932-1-0x0000000074D60000-0x0000000075311000-memory.dmp

Filesize
5.7MB

Download
memory/1932-2-0x0000000074D60000-0x0000000075311000-memory.dmp

Filesize
5.7MB

Download
memory/1932-4-0x0000000074D60000-0x0000000075311000-memory.dmp

Filesize
5.7MB

Download
memory/1932-11-0x0000000074D60000-0x0000000075311000-memory.dmp

Filesize
5.7MB

Download
memory/1932-12-0x0000000074D62000-0x0000000074D63000-memory.dmp

Filesize
4KB

Download
memory/1932-13-0x0000000074D60000-0x0000000075311000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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