nanocore | 51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce

General

Target

51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe
Size

416KB
MD5

c456ba51c61c09e99e4a01b13e0a78e6
SHA1

8e4d25ae9f87d90401adea791a0d9d1f2575d1ee
SHA256

51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce
SHA512

2b241bdecdb7555ea36943e7b6ab26c75147c361b09e1bdbbbb01154724419fffc499e6a79dd6d6ce155fc816de4cd33c54a32b385915d5b4d5b38d47721cf2b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU73:ITNYrnE3bm/CiejewY5v4

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
2720	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.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 2720 set thread context of 2480	2720	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	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2480	regasm.exe
2480	regasm.exe
2480	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2480	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2720	2240	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe	31
PID 2240 wrote to memory of 2720	2240	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe	31
PID 2240 wrote to memory of 2720	2240	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe	31
PID 2240 wrote to memory of 2720	2240	51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe	31
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32
PID 2720 wrote to memory of 2480	2720	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe
"C:\Users\Admin\AppData\Local\Temp\51c2d225d72aa3a0cd2b9ea143cdd5b5ad8f7c601df1bc7c39c7f05fde84a1ce.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- 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:2720
- - 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:2480

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
21c6ece0ca3d12bf58355dc47389cc2b

SHA1
120ce98c35905630236b5515d8a31a11df0a660f

SHA256
166e40294ce3a1cc8bed464e96234d864f865487d5584245600f2ecfd2f9867b

SHA512
28a6727971923ccd282fdd71d5df474ed20c8ee45f7cc38a16015b52ef5c13200828ab2e90e8e7351705b782cf645cb0c03c910446c51bfb6a506aa6befc3e07

Download Submit
memory/2240-12-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2240-1-0x0000000000070000-0x00000000000DE000-memory.dmp

Filesize
440KB

Download
memory/2240-2-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2240-3-0x0000000001FA0000-0x0000000001FDC000-memory.dmp

Filesize
240KB

Download
memory/2240-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

Filesize
4KB

Download
memory/2480-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-32-0x00000000007F0000-0x00000000007FA000-memory.dmp

Filesize
40KB

Download
memory/2480-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-31-0x00000000009A0000-0x00000000009BE000-memory.dmp

Filesize
120KB

Download
memory/2480-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2480-30-0x00000000005D0000-0x00000000005DA000-memory.dmp

Filesize
40KB

Download
memory/2480-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-13-0x0000000001350000-0x00000000013BE000-memory.dmp

Filesize
440KB

Download
memory/2720-14-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-15-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-33-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-34-0x0000000073F20000-0x000000007460E000-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