nanocore | 29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2

General

Target

29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
Size

255KB
MD5

0972c71f0ba1298d064bdebc27f9b159
SHA1

90ac2c8a7385644b3affc6b78b77c584ba9f929e
SHA256

29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2
SHA512

3024efc90a4558004d0be87bc072c2ed7e36d914a9fc89ad6dd2febaebb8ee8ec6dc745f79dde4b03cba125a1dab7497bc768fc53eef4a5da42e3372020a409e
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQSz:EeGUA5YZazpXUmZhdz

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
2828	a1punf5t2of.exe
2704	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
2828	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.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 2828 set thread context of 2704	2828	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	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.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
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 3036 wrote to memory of 2828	3036	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	31
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32
PID 2828 wrote to memory of 2704	2828	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
"C:\Users\Admin\AppData\Local\Temp\29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2828
- - 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:2704

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
255KB

MD5
cc4fc94895e94035a7c84e8ccfc36bed

SHA1
a2d7b082c54f94d958458925ed1f6af6ad63af66

SHA256
a3ac29a540773ba35c5282e134deff054bb8f41a4d31d28d8d0689b16faeafe1

SHA512
91282858ca97618da9bd6da5f2e74fc93baeebfe82fc574b9e228170731ed06433916b17f53a4bdd00dd266a0bc1cd4a9eaf69fa668f1d95046ba2001622e89c

Download Submit
memory/2704-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-19-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-15-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-18-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-43-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-20-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-21-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/2828-17-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-16-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-6-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-5-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-4-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-3-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-2-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-1-0x00000000743E0000-0x000000007498B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-0-0x00000000743E1000-0x00000000743E2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads