nanocore | a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1ef

General

Target

a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe
Size

279KB
MD5

7d9db0be8847e1d23604e9583474a720
SHA1

e7c75d7c2ea6e201c6044c7ebe86a08188a76ba1
SHA256

a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1ef
SHA512

adc93793cf7ca95df09b5ad26bcba03a364fac1e3e10cabbe5389d444ba13c421a2fc9795f7ceb9fdc8b9127205e6cbe3d70253b1f3fc78057349a3f1a993cd6
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fE:boSeGUA5YZazpXUmZhZ6s

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
1932	a1punf5t2of.exe
2844	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe
1932	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"	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.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 1932 set thread context of 2844	1932	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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2844	a1punf5t2of.exe
2844	a1punf5t2of.exe
2844	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1268 wrote to memory of 1932	1268	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	31
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32
PID 1932 wrote to memory of 2844	1932	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe
"C:\Users\Admin\AppData\Local\Temp\a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1268
- 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:1932
- - 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:2844

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
279KB

MD5
2bf67319d34597af93ae0e5c9abfa144

SHA1
8086e7dec203aa2483fbb8c2d97bde9727d26dd1

SHA256
f93640b3a61c425fecbf86a4e3ff11af5ae66b4338ae930fd4f62b519934a9ba

SHA512
034c5a738d03cc807cb7192dbb0ff24a76f9e5637f153627970f830f91cc70e48c01b7bf445cabcb835644bb873044069888d62943436d64c39334d9d31627b0

Download Submit
memory/1268-16-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-1-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-2-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-3-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-4-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-5-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-6-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-0-0x0000000074EA1000-0x0000000074EA2000-memory.dmp

Filesize
4KB

Download
memory/1932-19-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-15-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-18-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-17-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-20-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-21-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-43-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download
memory/2844-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads