nanocore | a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343

General

Target

a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe
Size

416KB
MD5

a900e5b935fb234ab80949e8f294fcff
SHA1

d640f06b8b1470fc0d2011805258b9af0b7612f2
SHA256

a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343
SHA512

8c30347773d7d058fde8f1371914715e902d924941794e20a5a101ff3447192eb63b97eeb7d552f0223c6831f0bc94beb4b140ce9e553eee0a84b40b5630fb2a
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7o:ITNYrnE3bm/CiejewY5vH

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	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.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"	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.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	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	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.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
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	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	30
PID 2552 wrote to memory of 2948	2552	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	30
PID 2552 wrote to memory of 2948	2552	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	30
PID 2552 wrote to memory of 2948	2552	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	30
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31
PID 2948 wrote to memory of 2828	2948	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe
"C:\Users\Admin\AppData\Local\Temp\a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.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

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
057ab368b7f4db0895789498ddda3b1f

SHA1
5ea62881bea35ace7d8b59c501ee6544d269c353

SHA256
55d7840c9803df02eeeada1a8923cdecbf5b32e2bf4c1f000ec2589570d229f1

SHA512
3a60684acfa15371c308cacfd1c1dbc2739a9405e7c3cac31e6f76fab9a439398a8acdcca2d28e7f82df5f13c5f4a0a391ca445e587cc7b51b3a70fb19f92530

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

Filesize
4KB

Download
memory/2552-1-0x0000000001200000-0x000000000126E000-memory.dmp

Filesize
440KB

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

Filesize
6.9MB

Download
memory/2552-3-0x0000000001050000-0x000000000108C000-memory.dmp

Filesize
240KB

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

Filesize
6.9MB

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

Filesize
224KB

Download
memory/2828-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-36-0x0000000000500000-0x000000000050A000-memory.dmp

Filesize
40KB

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

Filesize
224KB

Download
memory/2828-35-0x00000000004E0000-0x00000000004FE000-memory.dmp

Filesize
120KB

Download
memory/2828-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2828-25-0x0000000000400000-0x0000000000438000-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/2828-34-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2948-14-0x0000000000200000-0x000000000026E000-memory.dmp

Filesize
440KB

Download
memory/2948-13-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

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

Filesize
6.9MB

Download
memory/2948-37-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

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