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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe

Executes dropped EXE 1 IoCs

pid	Process
32	ximo2ubzn1i.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-1-5-21-4050598569-1597076380-177084960-1000\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 32 set thread context of 3352	32	ximo2ubzn1i.exe	92

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
3352	regasm.exe
3352	regasm.exe
3352	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3352	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 32	1144	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	90
PID 1144 wrote to memory of 32	1144	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	90
PID 1144 wrote to memory of 32	1144	a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe	90
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92
PID 32 wrote to memory of 3352	32	ximo2ubzn1i.exe	92

C:\Users\Admin\AppData\Local\Temp\a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe
"C:\Users\Admin\AppData\Local\Temp\a634052144ca4c55b40b8a317b87b96ee607247fabc2be5147b4366f68736343.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1144
- 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:32
- - 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:3352

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

Query Registry

1

T1012

System Information Discovery

3

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
af3ab21fe1bda40d5d300ad969d09c5a

SHA1
3982e75171630e2ed5182aee503011fc2b8868c4

SHA256
6f68587eabc87326eb73022ef3a49ac29beaccb31dafb2c1d150b79fc5dd26c3

SHA512
3edcf493e1fb73519304a36b551d729fd4a5d206e40238ba165f2298804bdae58c32205a19d52ceba8b92a76d1e06954c6e41b7df1c12137d9c7582e678f5dbf

Download Submit
memory/32-35-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/32-33-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/32-22-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/32-21-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/1144-5-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/1144-6-0x00000000061A0000-0x00000000061DC000-memory.dmp

Filesize
240KB

Download
memory/1144-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/1144-20-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/1144-4-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/1144-3-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/1144-1-0x0000000000BB0000-0x0000000000C1E000-memory.dmp

Filesize
440KB

Download
memory/1144-2-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/3352-27-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/3352-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3352-28-0x0000000005110000-0x00000000051AC000-memory.dmp

Filesize
624KB

Download
memory/3352-30-0x0000000005230000-0x000000000523A000-memory.dmp

Filesize
40KB

Download
memory/3352-31-0x0000000005240000-0x000000000525E000-memory.dmp

Filesize
120KB

Download
memory/3352-32-0x0000000005FA0000-0x0000000005FAA000-memory.dmp

Filesize
40KB

Download
memory/3352-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3352-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3352-36-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads