nanocore | 003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787

General

Target

003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe
Size

416KB
MD5

6b7cb82e31f5df945d6e3b30f835bf90
SHA1

f2eacb1b8e9b0a075c9e7887cf2c3d33c3053b9c
SHA256

003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787
SHA512

0202fd3eb61ed388eb83c29b2aebe7d449436911c66fdea4c6aa9f4c63502df0d19d7ad078fcd6fe8eb3dced6738b6827c8f59e066c075fbad435ef0bd191f59
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUb:ITNYrnE3bm/CiejewY5v4

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
2200	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1488	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.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 2200 set thread context of 2108	2200	ximo2ubzn1i.exe	30

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	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.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
2108	regasm.exe
2108	regasm.exe
2108	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2108	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2200	1488	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	29
PID 1488 wrote to memory of 2200	1488	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	29
PID 1488 wrote to memory of 2200	1488	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	29
PID 1488 wrote to memory of 2200	1488	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	29
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30
PID 2200 wrote to memory of 2108	2200	ximo2ubzn1i.exe	30

C:\Users\Admin\AppData\Local\Temp\003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe
"C:\Users\Admin\AppData\Local\Temp\003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1488
- 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:2200
- - 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:2108

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

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
8a542b05975e697bb8af7b98b44aabc1

SHA1
47cbfaac3c42455e3e3ae15b6cebc665ddc9507b

SHA256
089c34c742a3ec93b8df8ab710784e86c14b5c3ba2d02d314842c6a52410f194

SHA512
89a67f51753013c0895917ba54a06b18b3965314ee8a6873d4640abd495c5a623f3d64e2a560d18582679b3202c699e6b12e96dfc2739ba4077595abcdf87a9a

Download Submit
memory/1488-15-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/1488-1-0x0000000001150000-0x00000000011BE000-memory.dmp

Filesize
440KB

Download
memory/1488-2-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/1488-3-0x0000000001070000-0x00000000010AC000-memory.dmp

Filesize
240KB

Download
memory/1488-0-0x0000000073C4E000-0x0000000073C4F000-memory.dmp

Filesize
4KB

Download
memory/2108-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-37-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2108-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2108-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-36-0x00000000003C0000-0x00000000003DE000-memory.dmp

Filesize
120KB

Download
memory/2108-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2108-35-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2108-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2200-12-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2200-14-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2200-13-0x0000000001120000-0x000000000118E000-memory.dmp

Filesize
440KB

Download
memory/2200-38-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2200-39-0x0000000073C40000-0x000000007432E000-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