nanocore | 3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a

General

Target

3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
Size

416KB
MD5

3ccac33b001ff12e4d02d46545877b60
SHA1

4fd29a4c6b19deb87057a191f1636a9e40a49401
SHA256

3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a
SHA512

b7861012a11d7d18db5aefef5fb4be5659cee33b29fd3cf7716b0748676f0fb61d441856e0201d111679219d8ef365bb9e6d05f22b8f1bca4ff7fbd90e4cd6ff
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7A:ITNYrnE3bm/CiejewY5vD

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
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 1 IoCs

pid	Process
2948	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2552	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.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	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 2828	2948	ximo2ubzn1i.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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2828	regasm.exe
2828	regasm.exe
2828	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2828	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2948	2552	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	31
PID 2552 wrote to memory of 2948	2552	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	31
PID 2552 wrote to memory of 2948	2552	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	31
PID 2552 wrote to memory of 2948	2552	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
"C:\Users\Admin\AppData\Local\Temp\3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2948
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2828

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
dfcc10d02859ca8ca781a95afbc3dbc1

SHA1
3b7cf79960612943419c339135079db3c6c7894c

SHA256
304a3c5b40a2b8ee7f6fb6bdf181e6682d31ef1ab55f332c345a137f13ccfd98

SHA512
2c95b8c9a0a47d33b62861a4a3bdb52909a89c57013f31c99f8917d3798f3840af57d0c3ce3735e04f137fddb962c4be21b6ac6d6d200e3564e7af68559b2b75

Download Submit
memory/2552-3-0x00000000020B0000-0x00000000020EC000-memory.dmp

Filesize
240KB

Download
memory/2552-2-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2552-1-0x0000000000060000-0x00000000000CE000-memory.dmp

Filesize
440KB

Download
memory/2552-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/2552-12-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2828-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-37-0x00000000005D0000-0x00000000005DA000-memory.dmp

Filesize
40KB

Download
memory/2828-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-36-0x00000000005B0000-0x00000000005CE000-memory.dmp

Filesize
120KB

Download
memory/2828-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-35-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/2948-13-0x0000000000DA0000-0x0000000000E0E000-memory.dmp

Filesize
440KB

Download
memory/2948-14-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-15-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-38-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-39-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads