nanocore | 9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380

General

Target

9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe
Size

416KB
MD5

f5f61aa2182eb8707744095a1e65aaeb
SHA1

68d375f660ebd5c0204a77e237fb05410f511980
SHA256

9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380
SHA512

634653742cfff7a03bbdb637b4158570630824386d6501376151e45c2cf55b9f13f5afef1cf200a2329cfecfdb546c65b79ee8030a6536daa435a5134e98093f
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

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe

Executes dropped EXE 1 IoCs

pid	Process
4108	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.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 4108 set thread context of 2100	4108	ximo2ubzn1i.exe	87

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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2100	regasm.exe
2100	regasm.exe
2100	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2100	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 4108	3336	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe	86
PID 3336 wrote to memory of 4108	3336	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe	86
PID 3336 wrote to memory of 4108	3336	9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe	86
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87
PID 4108 wrote to memory of 2100	4108	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe
"C:\Users\Admin\AppData\Local\Temp\9522d75f57fb10033030a30ae704d30865f54817cd5bd0e26be69ffcee061380.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3336
- 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:4108
- - 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:2100

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
1e39bc4343c352ccdd4ca1de875c4955

SHA1
1340e6b5be5f27c39a88cf988e431436d3c953fa

SHA256
ae5a53da9c2c45a5d885513851a888e857f6e0d5cf64aea798460665d9a9a64d

SHA512
971a3f855b02c14bc0fc14ad776d822e98ca74af74e17e937c1ce257c5f8299a8e4ab7fabf6e5e9fa8251f10d9061a7949e79eba5684ffed5282c865a0fc8bd0

Download Submit
memory/2100-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-36-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2100-32-0x0000000005E20000-0x0000000005E2A000-memory.dmp

Filesize
40KB

Download
memory/2100-31-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

Filesize
120KB

Download
memory/2100-30-0x00000000052A0000-0x00000000052AA000-memory.dmp

Filesize
40KB

Download
memory/2100-28-0x0000000004F80000-0x000000000501C000-memory.dmp

Filesize
624KB

Download
memory/2100-27-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2100-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2100-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3336-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3336-20-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3336-6-0x0000000005710000-0x000000000574C000-memory.dmp

Filesize
240KB

Download
memory/3336-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/3336-4-0x00000000052E0000-0x00000000052EA000-memory.dmp

Filesize
40KB

Download
memory/3336-3-0x0000000005140000-0x00000000051D2000-memory.dmp

Filesize
584KB

Download
memory/3336-2-0x00000000058B0000-0x0000000005E54000-memory.dmp

Filesize
5.6MB

Download
memory/3336-1-0x0000000000820000-0x000000000088E000-memory.dmp

Filesize
440KB

Download
memory/4108-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4108-21-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4108-33-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4108-35-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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