nanocore | fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8

General

Target

fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe
Size

280KB
MD5

bace252b49b68a0099f8ecdda382b250
SHA1

49c319ec9fdebe5e8d896a9825fe128bc6a29af9
SHA256

fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8
SHA512

85b88f965fc2f4c4e9bdf34a6846d696f5759d99a8c64db3487d5e9afbfcb8494fd05751361feeed309ea8834526cf83130a535f446b8afac5de9bef111e5ea0
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66f32:boSeGUA5YZazpXUmZhZ6f2

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2484	a1punf5t2of.exe
3024	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe
2484	a1punf5t2of.exe

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\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2484 set thread context of 3024	2484	a1punf5t2of.exe	32

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 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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3024	a1punf5t2of.exe
3024	a1punf5t2of.exe
3024	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3024	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2136 wrote to memory of 2484	2136	fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe	31
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32
PID 2484 wrote to memory of 3024	2484	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe
"C:\Users\Admin\AppData\Local\Temp\fe62431c50ad3f194cc5a51da58d0c1d8281ada4d910f51cb1df27f66a681ab8N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:3024

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

System Information Discovery

2

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

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
280KB

MD5
7b13cfefeb9a4d679e32035e72e5299f

SHA1
2583a0d067c5fd92d2b17bb4cb8d6d00ddd9b14e

SHA256
1daa5ec7857c5d2fc08fd531f7427d82a0fc19a371579d2e913e6be2f18ba9d3

SHA512
3af24f41f17104f69d1c1b94ed93adff9fc886d53b71b4c8e877f2ef097d1075d6cd00f009bf66137503e3d9938533dba2c1ec13e57b4a4e4818b5802ad062dd

Download Submit
memory/2136-14-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-1-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-2-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-3-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-4-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-5-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2136-0-0x00000000741C1000-0x00000000741C2000-memory.dmp

Filesize
4KB

Download
memory/2484-16-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-17-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-15-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-18-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-19-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-20-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-37-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/3024-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3024-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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