nanocore | 8d74938e682b578cb67074aaf00f50034cdbcd2484c3f31bc9934f7afa3d9ce1

General

Target

TELEX-BL-393984-DRAFTCOP-POPDF093.scr
Size

326KB
MD5

1a45ff6479799c6275b1395806331dac
SHA1

96d8fb6eb1f570fa0c79b9afdab5f39d36281d13
SHA256

141cf9cb6a35eaba2eaf7285f891ee0cb1e25f2a8c02d99e681e3538f1921ac2
SHA512

cf478a183521b1007028cc9a3397351de3b15ac4234f17fb0c5f68231db9714a7528a65ef5c408c043475e9b5031a0e67eb2d1f23d695b85f0006ca7d18a8d72
SSDEEP

6144:l2SvdgnzDIUnrl92dtL8sYPE2Q7WgyvZhWd:l2SvuzEUnrlgdtlYsF7WgyvZC

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ijehawele.duckdns.org:1333

Mutex

8f20f6f8-5993-4e83-bf83-09b570dfe6eb

Attributes

activate_away_mode
true
backup_connection_host
ijehawele.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-11-28T22:24:48.363512636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1333
default_group
MUCHMONEY
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
8f20f6f8-5993-4e83-bf83-09b570dfe6eb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ijehawele.duckdns.org
primary_dns_server
8.8.8.8
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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2624-0-0x0000000000860000-0x00000000008E6000-memory.dmp	upx
behavioral1/memory/2624-4-0x0000000000860000-0x00000000008E6000-memory.dmp	upx
behavioral1/memory/2624-25-0x0000000000860000-0x00000000008E6000-memory.dmp	upx

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 2624 set thread context of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TELEX-BL-393984-DRAFTCOP-POPDF093.scr

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr
2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr
2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr
2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr
2692	RegAsm.exe
2692	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2692	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31
PID 2624 wrote to memory of 2692	2624	TELEX-BL-393984-DRAFTCOP-POPDF093.scr	31

C:\Users\Admin\AppData\Local\Temp\TELEX-BL-393984-DRAFTCOP-POPDF093.scr
"C:\Users\Admin\AppData\Local\Temp\TELEX-BL-393984-DRAFTCOP-POPDF093.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\TELEX-BL-393984-DRAFTCOP-POPDF093.scr" /S
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2624-10-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-18-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-0-0x0000000000860000-0x00000000008E6000-memory.dmp

Filesize
536KB

Download
memory/2624-19-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-9-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-17-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-16-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-8-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-14-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-13-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-12-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-11-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-2-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-1-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-15-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-7-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-4-0x0000000000860000-0x00000000008E6000-memory.dmp

Filesize
536KB

Download
memory/2624-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-20-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2624-25-0x0000000000860000-0x00000000008E6000-memory.dmp

Filesize
536KB

Download
memory/2692-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing