nanocore | b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b

General

Target

b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe
Size

414KB
MD5

8719c0071a8d23bf30bfc185c5779f2d
SHA1

4293a093d19bbc16803a65fbe4d7269ef9466d11
SHA256

b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b
SHA512

dc473209180194006d20c5d89bdb45e88aa498ee302f74e83f971827dab3719ae49a1b77ffd2a7a267c70c5dae31b12cd36374276f36c774e819f0162465bc75
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7U:ITNYrnE3bm/CiejewY5vD

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

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe

Executes dropped EXE 1 IoCs

pid	Process
3092	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.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 3092 set thread context of 4716	3092	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	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.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
4716	regasm.exe
4716	regasm.exe
4716	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4716	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 3092	4840	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	86
PID 4840 wrote to memory of 3092	4840	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	86
PID 4840 wrote to memory of 3092	4840	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	86
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87
PID 3092 wrote to memory of 4716	3092	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe
"C:\Users\Admin\AppData\Local\Temp\b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4840
- 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:3092
- - 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:4716

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
414KB

MD5
6aa38a021d4eab4252caec3876552350

SHA1
2b0a5a2858d1c2d15e265f9ac14a0e2320d3d1c4

SHA256
f32075ca0cbf53650721f15f9d61244c7c1afbdaf694501faf6f0da8f51539a0

SHA512
bc4fd5d9b7f2a4f881a6603b078baac2f32063969f26ac14de8da97cefe9ee7ad21bde378d687f0a765d0de2456d7122bc57f75c39d2f99b8cde6e10dd9b9dc8

Download Submit
memory/3092-35-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3092-33-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3092-22-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/3092-21-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4716-28-0x0000000005860000-0x00000000058FC000-memory.dmp

Filesize
624KB

Download
memory/4716-32-0x0000000006700000-0x000000000670A000-memory.dmp

Filesize
40KB

Download
memory/4716-36-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4716-31-0x0000000005AD0000-0x0000000005AEE000-memory.dmp

Filesize
120KB

Download
memory/4716-30-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

Filesize
40KB

Download
memory/4716-27-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4716-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4716-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4716-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4840-3-0x0000000004AE0000-0x0000000004B72000-memory.dmp

Filesize
584KB

Download
memory/4840-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/4840-4-0x0000000004AC0000-0x0000000004ACA000-memory.dmp

Filesize
40KB

Download
memory/4840-20-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4840-6-0x0000000004FC0000-0x0000000004FFC000-memory.dmp

Filesize
240KB

Download
memory/4840-2-0x0000000005090000-0x0000000005634000-memory.dmp

Filesize
5.6MB

Download
memory/4840-1-0x0000000000060000-0x00000000000CE000-memory.dmp

Filesize
440KB

Download
memory/4840-5-0x00000000748E0000-0x0000000075090000-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