nanocore | 081307b860934719907ae64af6f2c8fd956551a9063c1c7e8473cd39b6aebc03

General

Target

lock.exe
Size

203KB
MD5

1e580ebd974116d8d4242db8434cded4
SHA1

95bd510fb31a0c8fb7dd40b3250578ebe69cccc1
SHA256

081307b860934719907ae64af6f2c8fd956551a9063c1c7e8473cd39b6aebc03
SHA512

8b51aeba6c7c2dd9d1d795a18d44c3501ea875d3a5c3d1466853f9897951c83547b1332479d9c23cf14e1614c421e73f3374894e2bd685f3228134c22296d672
SSDEEP

6144:sLV6Bta6dtJmakIM5b8GL+1WUQ52F+/8Ej4e5:sLV6BtpmkjGLUcQsEEj4w

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
Nanocore family
nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Service = "C:\\Program Files (x86)\\WAN Service\\wansv.exe"	lock.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	lock.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WAN Service\wansv.exe	lock.exe
File opened for modification	C:\Program Files (x86)\WAN Service\wansv.exe	lock.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lock.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

pid	Process
4116	schtasks.exe
4284	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe
3904	lock.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3904	lock.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	lock.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3904 wrote to memory of 4116	3904	lock.exe	77
PID 3904 wrote to memory of 4116	3904	lock.exe	77
PID 3904 wrote to memory of 4116	3904	lock.exe	77
PID 3904 wrote to memory of 4284	3904	lock.exe	79
PID 3904 wrote to memory of 4284	3904	lock.exe	79
PID 3904 wrote to memory of 4284	3904	lock.exe	79

C:\Users\Admin\AppData\Local\Temp\lock.exe
"C:\Users\Admin\AppData\Local\Temp\lock.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:3904
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6CC4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4116
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6D22.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4284

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\tmp6CC4.tmp

Filesize
1KB

MD5
0b696aa2117af404b05770c65805488a

SHA1
054ebfb033ec7cc3fed17a40d823538d5bd160ff

SHA256
caffa6d576e930d7efd7bfdfa8f985183ccf152407e23cf64dbc82205d2bf656

SHA512
45146fc309085dd8fb3b5796241ab699f53eb55d79ae5be77c9e097a97ab2f7e722603dde06fc270c0184fb35f9bb4e331bcbde42e54731522afb5bab22dfbc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6D22.tmp

Filesize
1KB

MD5
eb527779d4a920bac8c3c59e8f4b4b4c

SHA1
4c9c48fd4ab89a983c87d810577133dc281160b4

SHA256
97a200adfccc855ed435941fe1453a6add1a66b8390d033279c2f1a6a64c26a2

SHA512
a48c1ca2310a4bceacca90d3b8748fdecc0169738905e0bc62a665ab048c1ae6bb801dc99f0f04d85287993c27bfd0a4e7f59d27a1c233b6662d6ba3ca586da0

Download Submit
memory/3904-0-0x0000000074521000-0x0000000074522000-memory.dmp

Filesize
4KB

Download
memory/3904-1-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download
memory/3904-2-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download
memory/3904-10-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download
memory/3904-11-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download
memory/3904-12-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download
memory/3904-13-0x0000000074520000-0x0000000074AD1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads