nanocore | 181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a

General

Target

181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe
Size

416KB
MD5

5a07735338f03f43aa20a064f3e23fd4
SHA1

024749ae320d59dc8b90b2d5d95e40d90929fcdc
SHA256

181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a
SHA512

0ec4ff12a58953e6b8e913231bfb2f8581eed7a4fa0dff29bf81eb9c5472508bc4f026293414ac50f7596799d547fb6edd6082172dbc2c87027f6b7e8b26b86b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU78:ITNYrnE3bm/CiejewY5v9

Score

10^/10

nanocore defense_evasion discovery 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
2184	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1676	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 2184 set thread context of 2928	2184	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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2928	regasm.exe
2928	regasm.exe
2928	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2184	1676	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	30
PID 1676 wrote to memory of 2184	1676	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	30
PID 1676 wrote to memory of 2184	1676	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	30
PID 1676 wrote to memory of 2184	1676	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	30
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2928	2184	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe
"C:\Users\Admin\AppData\Local\Temp\181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1676
- 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:2184
- - 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:2928

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
9aefb586d8a41de3f8c8d04eec4351be

SHA1
099aa291d9bfd5566da78ab596a6d19c06309615

SHA256
a9f4acacb4dbb6a7e2f8e8e3425e7ce9989cc28a4fccf984b0158fafde02853f

SHA512
fdd391d6347e181e75cf55a136d64e49c3bd66ee6e5ceac9549ab535e92b1fa5b75526c0f176de7d48c9b5a4888ff6615b3966921d31745c693ec34702e7b7f8

Download Submit
memory/1676-1-0x00000000010A0000-0x000000000110E000-memory.dmp

Filesize
440KB

Download
memory/1676-2-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/1676-3-0x0000000000A70000-0x0000000000AAC000-memory.dmp

Filesize
240KB

Download
memory/1676-12-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/1676-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/2184-33-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-15-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-14-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-13-0x0000000000030000-0x000000000009E000-memory.dmp

Filesize
440KB

Download
memory/2184-34-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/2928-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-30-0x0000000000760000-0x000000000076A000-memory.dmp

Filesize
40KB

Download
memory/2928-31-0x00000000008E0000-0x00000000008FE000-memory.dmp

Filesize
120KB

Download
memory/2928-32-0x0000000000850000-0x000000000085A000-memory.dmp

Filesize
40KB

Download
memory/2928-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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