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

Executes dropped EXE 1 IoCs

pid	Process
2672	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.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-1-5-21-4177215427-74451935-3209572229-1000\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 2672 set thread context of 2464	2672	ximo2ubzn1i.exe	29

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 2 IoCs

pid	Process
2464	regasm.exe
2464	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2464	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2672	2080	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	28
PID 2080 wrote to memory of 2672	2080	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	28
PID 2080 wrote to memory of 2672	2080	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	28
PID 2080 wrote to memory of 2672	2080	b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe	28
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29
PID 2672 wrote to memory of 2464	2672	ximo2ubzn1i.exe	29

C:\Users\Admin\AppData\Local\Temp\b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe
"C:\Users\Admin\AppData\Local\Temp\b88d0d35d337464fa0c7c889fd52cf8adefba802800759087f3798739ac68b7b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- 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:2672
- - 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:2464

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
414KB

MD5
0e25ff88be871f26bbf505087ea3937a

SHA1
3e923374e34cde3767a79f5edd70df1882f8f3d5

SHA256
312928f4b57b12e10fc7d3c92064ffbad6bf8f33e7c1d8bb41c5781789230f73

SHA512
3ab09f34d5151a8fa0790bb63323c239e0fd709021d302eeeae88ed93eba48224ae7f3d7ce7db8e44babc6a011d50cb7867175f0cb5260ceb76e95f90ac184cf

Download Submit
memory/2080-12-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-1-0x00000000010C0000-0x000000000112E000-memory.dmp

Filesize
440KB

Download
memory/2080-2-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-3-0x0000000000B50000-0x0000000000B8C000-memory.dmp

Filesize
240KB

Download
memory/2080-0-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2464-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-36-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/2464-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2464-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-35-0x0000000000630000-0x000000000064E000-memory.dmp

Filesize
120KB

Download
memory/2464-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2464-34-0x0000000000620000-0x000000000062A000-memory.dmp

Filesize
40KB

Download
memory/2464-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2672-13-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-14-0x0000000001200000-0x000000000126E000-memory.dmp

Filesize
440KB

Download
memory/2672-15-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-37-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-38-0x0000000074E90000-0x000000007557E000-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