nanocore | ce40345a7a091ce1d7cfb88e8d757b80148e29265b43f2dcd7c283767243a783

General

Target

15caf78d05a0fa57a2437e1c8526ae30N.exe
Size

279KB
MD5

15caf78d05a0fa57a2437e1c8526ae30
SHA1

960ff36adc0b2d1f0b58e2158b796a5f9ed7970f
SHA256

ce40345a7a091ce1d7cfb88e8d757b80148e29265b43f2dcd7c283767243a783
SHA512

42c0c706cd97affe215f11b222bae24a7d491813605bd8722396deced7817799f1d7d4beea30f0e07dfbbaf6efff1fe8099359c5e08ee4a3b6483f9694b5ac2d
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fK7:boSeGUA5YZazpXUmZhZ6S7

Score

10^/10

nanocore evasion 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

Executes dropped EXE 2 IoCs

pid	Process
2740	a1punf5t2of.exe
2952	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2716	15caf78d05a0fa57a2437e1c8526ae30N.exe
2740	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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	15caf78d05a0fa57a2437e1c8526ae30N.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2952	2740	a1punf5t2of.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2952	a1punf5t2of.exe
2952	a1punf5t2of.exe
2952	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2952	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2716 wrote to memory of 2740	2716	15caf78d05a0fa57a2437e1c8526ae30N.exe	30
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 2952	2740	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\15caf78d05a0fa57a2437e1c8526ae30N.exe
"C:\Users\Admin\AppData\Local\Temp\15caf78d05a0fa57a2437e1c8526ae30N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2716
- 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
  - Suspicious use of WriteProcessMemory
  PID:2740
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2952

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
279KB

MD5
c5dd2be620d7a87d6c1ded5c9a4bc7fe

SHA1
20faf598d22677d636bb74ad8e47da9cca8187cc

SHA256
23e2b8b4ebdd741bfd4fa6839faf0eb1f3b1303fd4894a087a5b37bb23cb693b

SHA512
4b5326c905ff094d3ef88204b0bea22a75e0265b2039506c94054595743acb1970bdf94b567d13b5be37cc0c721a4fbbbdbdf2bfa01e329df5e7d00f83ce6fa0

Download Submit
memory/2716-0-0x00000000740C1000-0x00000000740C2000-memory.dmp

Filesize
4KB

Download
memory/2716-1-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-2-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-3-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2716-12-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-15-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-13-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-14-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-34-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2952-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2952-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads