nanocore | 797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157

General

Target

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe
Size

282KB
MD5

40ee20062ea7c34b5f2d6ad500e6f710
SHA1

0f6b3a858bc89be0b4fedd133266793576f418e7
SHA256

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157
SHA512

8b5b81291650218adbd7165a3fe6753ba865c0b6b2f13f6bf700bc87c6b3915ea94afbdc77a5bc447149c2dff88769725b878710b9efe1655b6a59a825ddd391
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfpG:boSeGUA5YZazpXUmZhZ6St

Score

10^/10

nanocore discovery 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

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
2280	a1punf5t2of.exe
2724	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

Processes:

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exea1punf5t2of.exe

pid	Process
2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe
2280	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 2280 set thread context of 2724	2280	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

Processes:

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid	Process
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
2724	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	2724	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2076 wrote to memory of 2280	2076	797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe	31
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32
PID 2280 wrote to memory of 2724	2280	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe
"C:\Users\Admin\AppData\Local\Temp\797b0eea8f8600968dad3e17f112d28e7f5668e3f883e10796d76ecbc36b5157N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- 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:2280
- - 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:2724

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
282KB

MD5
a0707195e9eb50f671cd976a6f025ecf

SHA1
1f95add6b585a2e3f215f65e819f0cbaf5b6c508

SHA256
83fce95726047d17216df49c10d1e58e00841806437d4f19ca0e43952f63d35c

SHA512
bddc8aa68bf2644534edb6f7ff5af27798da359c7a21e34e8059ca8694caa30ac4693f30d8c9dc2c6849665ae2bb1cd43f3f03bf7030fbdfbc3c0d14c3456054

Download Submit
memory/2076-14-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-1-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-2-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-3-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-4-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-5-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2076-0-0x0000000073FD1000-0x0000000073FD2000-memory.dmp

Filesize
4KB

Download
memory/2280-17-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-15-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-16-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-18-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-19-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-20-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2280-42-0x0000000073FD0000-0x000000007457B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads