nanocore | 273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee

General

Target

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe
Size

282KB
MD5

b5a3a966b4bfcd5fecfc8c451424249d
SHA1

a16ae4d96d9b848315dd0aa047dde926a35834f8
SHA256

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee
SHA512

cf59a0e53f534f4799ff526da03543debfbb5af14f34d1ad91a56fc7822b53ef8150061705785a8c09db5a78c656702302bf74db2d5dda93b35b90a737485845
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfl:boSeGUA5YZazpXUmZhZ6SI

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
Nanocore family
nanocore
Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

2956 a1punf5t2of.exe
2884 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exea1punf5t2of.exe

pid process

328 273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe
2956 a1punf5t2of.exe

pid	process
2956	a1punf5t2of.exe
2884	a1punf5t2of.exe

pid	process
328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe
2956	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.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 target process

PID 2956 set thread context of 2884 2956 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	pid	process	target process
PID 2956 set thread context of 2884	2956	a1punf5t2of.exe	a1punf5t2of.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

Processes:

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.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

2884 a1punf5t2of.exe
2884 a1punf5t2of.exe
2884 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

2884 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 2884 a1punf5t2of.exe

pid	process
2884	a1punf5t2of.exe
2884	a1punf5t2of.exe
2884	a1punf5t2of.exe

pid	process
2884	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	2884	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exea1punf5t2of.exe

description	pid	process	target process
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 328 wrote to memory of 2956	328	273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe
PID 2956 wrote to memory of 2884	2956	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe
"C:\Users\Admin\AppData\Local\Temp\273569a36a5df1f734e8870696181e1f2cdcb51e62afb2cf708c0a71a45f6cee.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:328
- 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:2956
- - 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:2884

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

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

Filesize
282KB

MD5
f92567f75753cb0e8880336e015b836d

SHA1
05830670318270942fd47adf04ac05f579629642

SHA256
a3a758d731b9b1c4063df8a70d05d8ef2255bacee693133874df01860b29ed5b

SHA512
371c02746dd3454e91205029e0a6f3a5c5b98f55d7a18a3df0befa236bf7e1775686369548bdcb7f851b95b88f636c4a0624284064676219a16567f5da96ed53

Download Submit
memory/328-0-0x0000000074781000-0x0000000074782000-memory.dmp

Filesize
4KB

Download
memory/328-1-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/328-2-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/328-3-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/328-4-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/328-5-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/328-14-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2956-19-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-18-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-20-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-17-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-15-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-16-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download
memory/2956-40-0x0000000074780000-0x0000000074D2B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads