nanocore | 2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64d

General

Target

2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe
Size

647KB
MD5

ff2da6a2d2e29d76e8ee869fa07f7530
SHA1

ece7a717f8a6e7973c78cadf87d6449e116fe9f4
SHA256

2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64d
SHA512

03334e7e0903ba6b4c4611443722f5c8cf07c974b7ca36d7e1a0a62a4c83bb13702d5b3761f72c288d2bf1e0fbcc4a878559a864fe3147ce8f51a00345818721
SSDEEP

12288:ra/rmU5El82jSlI/ExacF3gnxbCEjLz35gRHHi3xED:rav5UjSlI/EPFmOmLz35g9H4xED

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

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exefirewall-tmp.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	firewall-tmp.exe

Drops startup file 1 IoCs

Processes:

firewall-tmp.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\firewall-tmp.lnk	firewall-tmp.exe

Executes dropped EXE 3 IoCs

Processes:

firewall-tmp.exefirewall-tmp.exefirewall-tmp.exe

pid	Process
2024	firewall-tmp.exe
4620	firewall-tmp.exe
3624	firewall-tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

firewall-tmp.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DNS Monitor = "C:\\Program Files (x86)\\DNS Monitor\\dnsmon.exe"	firewall-tmp.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

firewall-tmp.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

firewall-tmp.exe

description	pid	Process	procid_target
PID 4620 set thread context of 3624	4620	firewall-tmp.exe	96

Drops file in Program Files directory 2 IoCs

Processes:

firewall-tmp.exe

description	ioc	Process
File created	C:\Program Files (x86)\DNS Monitor\dnsmon.exe	firewall-tmp.exe
File opened for modification	C:\Program Files (x86)\DNS Monitor\dnsmon.exe	firewall-tmp.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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:

2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exefirewall-tmp.execmd.exefirewall-tmp.exefirewall-tmp.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	firewall-tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	firewall-tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	firewall-tmp.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

firewall-tmp.exefirewall-tmp.exe

pid	Process
4620	firewall-tmp.exe
4620	firewall-tmp.exe
3624	firewall-tmp.exe
3624	firewall-tmp.exe
3624	firewall-tmp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

firewall-tmp.exe

pid	Process
3624	firewall-tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

firewall-tmp.exefirewall-tmp.exe

description	pid	Process
Token: SeDebugPrivilege	4620	firewall-tmp.exe
Token: SeDebugPrivilege	3624	firewall-tmp.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exefirewall-tmp.exefirewall-tmp.exe

description	pid	Process	procid_target
PID 2088 wrote to memory of 2024	2088	2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe	82
PID 2088 wrote to memory of 2024	2088	2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe	82
PID 2088 wrote to memory of 2024	2088	2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe	82
PID 2024 wrote to memory of 3272	2024	firewall-tmp.exe	91
PID 2024 wrote to memory of 3272	2024	firewall-tmp.exe	91
PID 2024 wrote to memory of 3272	2024	firewall-tmp.exe	91
PID 2024 wrote to memory of 4620	2024	firewall-tmp.exe	93
PID 2024 wrote to memory of 4620	2024	firewall-tmp.exe	93
PID 2024 wrote to memory of 4620	2024	firewall-tmp.exe	93
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96
PID 4620 wrote to memory of 3624	4620	firewall-tmp.exe	96

C:\Users\Admin\AppData\Local\Temp\2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe
"C:\Users\Admin\AppData\Local\Temp\2a8b2d4cf5f2054a01ea2d5c8d9b71e8f1706f74c251bb16684c98fa25b9a64dN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\firewall-tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\firewall-tmp.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c copy "C:\Users\Admin\AppData\Local\Temp\RarSFX0\*.*" "C:\Users\Admin\AppData\Roaming\Explorer" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3272
- - C:\Users\Admin\AppData\Roaming\Explorer\firewall-tmp.exe
    "C:\Users\Admin\AppData\Roaming\Explorer\firewall-tmp.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4620
  - - C:\Users\Admin\AppData\Roaming\Explorer\firewall-tmp.exe
      "C:\Users\Admin\AppData\Roaming\Explorer\firewall-tmp.exe"
      4⤵
      Executes dropped EXE
      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
      PID:3624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

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\Microsoft\CLR_v2.0_32\UsageLogs\firewall-tmp.exe.log

Filesize
594B

MD5
c94dfeb3fce284a48382d77bcc392730

SHA1
4e7d49492dae8f169d86d9af95f68a9f9cbd3998

SHA256
2f3dbeb392f82563bb0bb8e5a91873fd1fa3bf4fe34e285fcecb8c5cf0530815

SHA512
38eb711c5a4399baa16f667d92d41bd02c27bfc06c1ecf1e26c70a92f69318b05cda6146f6e8d4b357084674e3bbc93a5462eb62f28ca05349af6166e8637d13

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Genagxehdojkiicch.bin

Filesize
225KB

MD5
51f1ce5d176efbe96f90041f021ffc01

SHA1
ea0e79728896bdb069a8415e39870e840016a067

SHA256
608f68fcb0b4cbb3a2e688757ca461d14a1b15eb183f814fcfbeca882d9d1c6d

SHA512
22c19013ee68e7f78633e6e3b1254fe99eb9ad6145dd1c0b0bc6e8dd952405449c55df49ae986d8886d62ce4e18b73764f98c39b806f57c56aadcbca7721619d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ywhrrxoeoaonmsi.bin

Filesize
1024KB

MD5
7f80c68c6a830a70710814f8f826f4f2

SHA1
340d3725bd2fb249ef23b74695383acfc143f518

SHA256
59148dbade1cb116605f776b6cad15e7cdd5fe0303cedaef657768face638f3e

SHA512
77d3d9a24d815b8f3143a594dab9d07ddc77f40f0f26b9e12a7d22986f7505b3e02efe8bbe4caf2acc050777594e00246532bba39d45c451a68049c79cf8143d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\firewall-tmp.exe

Filesize
165KB

MD5
1c8bfc1aa27be1ef777946a6388ba879

SHA1
a375d403558a3e2203237178163f65770f5ac702

SHA256
ea6edfbb4f758fedc4e46256a30300bb80479cb854f83c51501e548b51bbfe72

SHA512
8eccdd4d58008d6d872e3983242d1118c98583c12894dbee4d5fd6e9528cd7d6d73fad2bbc175a0ba57aa8dc6baae8caad2d816347544bda22adcf9468111d4e

Download Submit
memory/2024-16-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/2024-15-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/2024-18-0x0000000072FE2000-0x0000000072FE3000-memory.dmp

Filesize
4KB

Download
memory/2024-19-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/2024-14-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/2024-13-0x0000000072FE2000-0x0000000072FE3000-memory.dmp

Filesize
4KB

Download
memory/2024-34-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/3624-37-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4620-31-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/4620-32-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/4620-33-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download
memory/4620-35-0x0000000072FE0000-0x0000000073591000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads