nanocore | 1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9

General

Target

1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe
Size

416KB
MD5

8ee1202070859f2d76314d23d3da915e
SHA1

038d05f716d6ed63977b33ca8395ac77e3c8a1e5
SHA256

1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9
SHA512

aac7016ae7d3ed110aff433d3d8aad141f1eab4ff8cdc0a06cac5cb872f48796c90bea77a721a5ef3d78cf85e7e578672f3d65d94f843e344ded4f72511247af
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7Tw:ITNYrnE3bm/CiejewY5vz

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe

Executes dropped EXE 1 IoCs

pid	Process
3696	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.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 3696 set thread context of 3540	3696	ximo2ubzn1i.exe	85

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	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.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
3540	regasm.exe
3540	regasm.exe
3540	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3540	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3540	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 3696	4304	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe	84
PID 4304 wrote to memory of 3696	4304	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe	84
PID 4304 wrote to memory of 3696	4304	1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe	84
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85
PID 3696 wrote to memory of 3540	3696	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe
"C:\Users\Admin\AppData\Local\Temp\1a949ad62acf5e8d63ef83a18c2cd3ec6adfdff67a560266be0b31f3ca107fa9.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4304
- 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:3696
- - 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:3540

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
88ef9d8401e2d28f319a9c2494eb8e80

SHA1
7c44cc24332f4d98ccd6edca0a569ad7e6ebbab8

SHA256
d211acf9a3b8abaacabecfe3b8f253185d74a43a00ca6f6f61fc776df4d31c79

SHA512
671591aeaf765dbac03a3bbab63310da83e1212d6338f73ae694e8df1a50b5114782eaf16ce9d9ff26c5cd564d0099c6bd32fbcc954953eb6788c82691f8bfb9

Download Submit
memory/3540-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3540-36-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/3540-32-0x00000000060B0000-0x00000000060BA000-memory.dmp

Filesize
40KB

Download
memory/3540-31-0x0000000005E90000-0x0000000005EAE000-memory.dmp

Filesize
120KB

Download
memory/3540-30-0x00000000053E0000-0x00000000053EA000-memory.dmp

Filesize
40KB

Download
memory/3540-28-0x00000000051B0000-0x000000000524C000-memory.dmp

Filesize
624KB

Download
memory/3540-27-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/3540-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3540-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3696-22-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/3696-21-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/3696-33-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/3696-35-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/4304-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/4304-20-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/4304-6-0x0000000005BD0000-0x0000000005C0C000-memory.dmp

Filesize
240KB

Download
memory/4304-5-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/4304-4-0x0000000005640000-0x000000000564A000-memory.dmp

Filesize
40KB

Download
memory/4304-3-0x0000000005690000-0x0000000005722000-memory.dmp

Filesize
584KB

Download
memory/4304-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/4304-1-0x0000000000D00000-0x0000000000D6E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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