nanocore | 075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685

General

Target

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe
Size

413KB
MD5

40589e95b838e591668adef85793cdc0
SHA1

7c6a8dd522ae4e2b95607f75947b0d46b3b7d53a
SHA256

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685
SHA512

37d42778e59afe4681b7baf5caf7716d00fd1451c48554675a3e2a73a9bc9ea55c9943dad95010535311335f3b2174718c4c5f3dda16c68a8a4cba1397e9f09f
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUU:ITNYrnE3bm/CiejewY5vv

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

Processes:

ximo2ubzn1i.exe

pid	Process
308	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe

pid	Process
2288	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

regasm.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ximo2ubzn1i.exe

description	pid	Process	procid_target
PID 308 set thread context of 1644	308	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

Processes:

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.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

Processes:

regasm.exe

pid	Process
1644	regasm.exe
1644	regasm.exe
1644	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
1644	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	1644	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2288 wrote to memory of 308	2288	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe	28
PID 2288 wrote to memory of 308	2288	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe	28
PID 2288 wrote to memory of 308	2288	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe	28
PID 2288 wrote to memory of 308	2288	075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe	28
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29
PID 308 wrote to memory of 1644	308	ximo2ubzn1i.exe	29

C:\Users\Admin\AppData\Local\Temp\075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe
"C:\Users\Admin\AppData\Local\Temp\075a903e2fe6bb505b10b34e65bd92fdc8a14ca032fff72be35afb8a87429685N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- 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:308
- - 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:1644

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
413KB

MD5
4f902e48285b383cf1fd71d9b0c9d36b

SHA1
b28da07b66b88eb69c50d2b40d87e3849ce758c4

SHA256
2b77728412c5995e1957824d3026acffa45c99f1cb53add343992df276739b50

SHA512
250e5d11ac4ef0b413a452995183c33f8282faeab2d62e83f6d055839571c58e11e529a9ccb15458aeeb3e8261250a2ce3f4b32c26f8578fa6c8b9b64f85621b

Download Submit
memory/308-13-0x0000000000BD0000-0x0000000000C3E000-memory.dmp

Filesize
440KB

Download
memory/308-39-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/308-38-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/308-15-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/308-14-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/1644-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-37-0x00000000006E0000-0x00000000006EA000-memory.dmp

Filesize
40KB

Download
memory/1644-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-36-0x00000000006C0000-0x00000000006DE000-memory.dmp

Filesize
120KB

Download
memory/1644-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1644-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1644-35-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2288-3-0x0000000004B40000-0x0000000004B7C000-memory.dmp

Filesize
240KB

Download
memory/2288-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/2288-12-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-2-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-1-0x0000000000150000-0x00000000001BE000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads