nanocore | 87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057

General

Target

87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe
Size

255KB
MD5

788694b7baa26fb737137e7269716a0c
SHA1

28d2a6a371d2a6a97bb805aa6c4fc42b5218333f
SHA256

87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057
SHA512

e037c1377607ce487fb83cd6dabaec5548398c3fb14d7d503e8b4b03fef94c1f74c7f8d778549a43e0ce6390078f205480ed48e2df8271a48caaab67f9e60992
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqW:EeGUA5YZazpXUmZhJW

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

pid	Process
2756	a1punf5t2of.exe
2832	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe
2756	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.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 2756 set thread context of 2832	2756	a1punf5t2of.exe	31

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	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.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

pid	Process
2832	a1punf5t2of.exe
2832	a1punf5t2of.exe
2832	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2832	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2644 wrote to memory of 2756	2644	87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe	30
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31
PID 2756 wrote to memory of 2832	2756	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe
"C:\Users\Admin\AppData\Local\Temp\87116c9c8b3896216d763178a26277ed5ce162217141f7f6025063392d932057.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- 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:2756
- - 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:2832

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
255KB

MD5
a64fdd65aa7e43dfd049cf4fe753543f

SHA1
fe3e1909d2eb04a2fd5ec7a094b27f5ee44f520b

SHA256
5a5927c7904b3ad81113c6ab096abb0e223240da1b001ea2b55033ca5b6bfdbd

SHA512
7ef71ebf20007db80db21980af7cbc1fc86998c5abac5073a3e45b5acff2e83ce9aaaa9c4b143d326709534590a95f7ff7ccd098eaf9aff03f7d62a4a5a7a5fb

Download Submit
memory/2644-0-0x0000000074031000-0x0000000074032000-memory.dmp

Filesize
4KB

Download
memory/2644-1-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-2-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-3-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-4-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-5-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-6-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2644-15-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-19-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-17-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-18-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-16-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-20-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-21-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-41-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2832-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2832-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads