nanocore | c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4f

General

Target

c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe
Size

416KB
MD5

d2d948797e97fdd6fb94b9f7e739e200
SHA1

996ca61f7588f8bcce138dca46d890f6c575518c
SHA256

c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4f
SHA512

181b91471977c8ebf14916c1ffdd213f2c320d68454e1a03aeb8d38bbed8f7619df97c12d77d99de6381140822d92193d02fefde982ef3a0a748e87425da171a
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwg:ITNYrnE3bm/CiejewY5v0

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
1968	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.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 1968 set thread context of 2460	1968	ximo2ubzn1i.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	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.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
2460	regasm.exe
2460	regasm.exe
2460	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2460	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1968	2360	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe	30
PID 2360 wrote to memory of 1968	2360	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe	30
PID 2360 wrote to memory of 1968	2360	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe	30
PID 2360 wrote to memory of 1968	2360	c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe	30
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31
PID 1968 wrote to memory of 2460	1968	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe
"C:\Users\Admin\AppData\Local\Temp\c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- 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:1968
- - 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:2460

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
2c4af076cfe34729dbe93ef9aa306d26

SHA1
be6dec0b7142342fcaca68e30916c10e2790af09

SHA256
4622a4993b5c45ae176b9493a2fae75be49d04b184eadc119af68a82bb8fad3a

SHA512
87b98b0115ea6a08bd899ae7db2856b70edf0a1564b1e160a950461b73f1a8349f949a614a755d61210078811208a0810ac5be8ab52f9720bba61dc6f65eeb9e

Download Submit
memory/1968-33-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-13-0x0000000000E80000-0x0000000000EEE000-memory.dmp

Filesize
440KB

Download
memory/1968-15-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-14-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-34-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-1-0x00000000013E0000-0x000000000144E000-memory.dmp

Filesize
440KB

Download
memory/2360-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-3-0x0000000000BE0000-0x0000000000C1C000-memory.dmp

Filesize
240KB

Download
memory/2360-12-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2460-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-30-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2460-31-0x00000000006A0000-0x00000000006BE000-memory.dmp

Filesize
120KB

Download
memory/2460-32-0x0000000000950000-0x000000000095A000-memory.dmp

Filesize
40KB

Download
memory/2460-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads