nanocore | 2891d3f5c09b5c18946ee0dd7b6274b682b32f591c77cdaa140fff29856e1ceb

General

Target

imapsvc.exe
Size

203KB
MD5

338c8ce4ab80bab7070776a6a8f08cf1
SHA1

b83bfb234f8b6c974d4b0ba3a19adfb496ecc537
SHA256

2891d3f5c09b5c18946ee0dd7b6274b682b32f591c77cdaa140fff29856e1ceb
SHA512

8e2d042a4d492d5349bc40d67f87bf8ae7d1ca6bd83201fc5642ab072283310bf986f3c74acc19c8a5b8cdfdf4682b00af95cafee11361eb41f379e125c242bb
SSDEEP

6144:MLV6Bta6dtJmakIM5pMluAJDAxGJg09ossu:MLV6Btpmk6RAioJgz1u

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\DHCP Host = "C:\\Program Files (x86)\\DHCP Host\\dhcphost.exe"	imapsvc.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	imapsvc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DHCP Host\dhcphost.exe	imapsvc.exe
File created	C:\Program Files (x86)\DHCP Host\dhcphost.exe	imapsvc.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	imapsvc.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
3632	schtasks.exe
3996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2060	imapsvc.exe
2060	imapsvc.exe
2060	imapsvc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2060	imapsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	imapsvc.exe
Token: SeDebugPrivilege	2060	imapsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 3996	2060	imapsvc.exe	85
PID 2060 wrote to memory of 3996	2060	imapsvc.exe	85
PID 2060 wrote to memory of 3996	2060	imapsvc.exe	85
PID 2060 wrote to memory of 3632	2060	imapsvc.exe	88
PID 2060 wrote to memory of 3632	2060	imapsvc.exe	88
PID 2060 wrote to memory of 3632	2060	imapsvc.exe	88

C:\Users\Admin\AppData\Local\Temp\imapsvc.exe
"C:\Users\Admin\AppData\Local\Temp\imapsvc.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:2060
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD86E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3996
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD8CD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3632

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\tmpD86E.tmp

Filesize
1KB

MD5
596e28ec651a34651a6593a8d0f38644

SHA1
8bf1a6d3b6c04e65f9fe0910b92650c58ea9d85f

SHA256
2026e95ee5b5d738fe3dcd5e1f173f2bab13a89745af040fdfbecb53e0157d40

SHA512
41dc9f8fb12c0d11a7b065b86136205525f5b0dbc411f2963af8a7a8ba4ac6d741b37b72e2be1d6adb0a5a2a2e972af7c148fbe8d976179740c57741e7541442

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD8CD.tmp

Filesize
1KB

MD5
0479d5f304ef2d7e3c15fb24a99f88c1

SHA1
8edbb1450a656fac5f5e96779ffe440ee8c1aec9

SHA256
112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc

SHA512
537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15

Download Submit
memory/2060-0-0x0000000074B52000-0x0000000074B53000-memory.dmp

Filesize
4KB

Download
memory/2060-1-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/2060-2-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/2060-10-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/2060-11-0x0000000074B52000-0x0000000074B53000-memory.dmp

Filesize
4KB

Download
memory/2060-12-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/2060-13-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/2060-14-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads