nanocore | 434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3d

General

Target

434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe
Size

416KB
MD5

46a0df8b13b23c016b7ec242430752f0
SHA1

c3b5d5d7009f829b90a4c4e9d5a1cba788b24974
SHA256

434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3d
SHA512

e1e96ad1775fc78f5e10f5530f86b04c0a974e5e2b7355dc8520acd49f0faa7629301d0b52568ecd267495bc9241b4ddf6f3e04f2e1cbd3c826e9764a85fca3d
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU77: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

Executes dropped EXE 1 IoCs

pid	Process
2704	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1204	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.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 2704 set thread context of 2736	2704	ximo2ubzn1i.exe	31

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	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.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
2736	regasm.exe
2736	regasm.exe
2736	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2736	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 2704	1204	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	30
PID 1204 wrote to memory of 2704	1204	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	30
PID 1204 wrote to memory of 2704	1204	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	30
PID 1204 wrote to memory of 2704	1204	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	30
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31
PID 2704 wrote to memory of 2736	2704	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe
"C:\Users\Admin\AppData\Local\Temp\434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1204
- 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:2704
- - 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:2736

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
416KB

MD5
1805dec6f85d8fe9e4f168c7fc507ea2

SHA1
13c208f46a09b2ddc8098c69bfc3671aa099f8a6

SHA256
d28dc48902cd0d58e5d64139da11a43d7fbc9336cc6457f76b820195ca893611

SHA512
d073b123213310f040f7927fd9cfb66bb1cee024f1f4c3378b52af0d67dba8f1bf757e84bafcf261a0e94dc080c2fdb2230773bb7cadd02366864802dcbab679

Download Submit
memory/1204-1-0x0000000000FC0000-0x000000000102E000-memory.dmp

Filesize
440KB

Download
memory/1204-2-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/1204-3-0x0000000000A10000-0x0000000000A4C000-memory.dmp

Filesize
240KB

Download
memory/1204-12-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/1204-0-0x000000007409E000-0x000000007409F000-memory.dmp

Filesize
4KB

Download
memory/2704-33-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-13-0x00000000013B0000-0x000000000141E000-memory.dmp

Filesize
440KB

Download
memory/2704-15-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-14-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-34-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-30-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2736-31-0x0000000000590000-0x00000000005AE000-memory.dmp

Filesize
120KB

Download
memory/2736-32-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2736-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads