nanocore | 0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1

General

Target

0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe
Size

280KB
MD5

64569030b8be9c07b18326c0a6b18579
SHA1

78db9e66b212e22002ff50605d821a9232b448e7
SHA256

0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1
SHA512

36d3d63a093307a6a76ee05bd33917f9e2c976e79d4a72ecb921e79b52f12aa71cff21a6fb0e91efb7814dfffb650203175b62ffacd467b8a867e3b635c42705
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fd:boSeGUA5YZazpXUmZhZ6F

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe

Executes dropped EXE 2 IoCs

pid	Process
456	a1punf5t2of.exe
4332	a1punf5t2of.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 456 set thread context of 4332	456	a1punf5t2of.exe	97

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	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4332	a1punf5t2of.exe
4332	a1punf5t2of.exe
4332	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4332	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 456	5060	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe	96
PID 5060 wrote to memory of 456	5060	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe	96
PID 5060 wrote to memory of 456	5060	0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe	96
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97
PID 456 wrote to memory of 4332	456	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe
"C:\Users\Admin\AppData\Local\Temp\0169f051733bfe2ac117a72b1d67be9b32c809d9e3cc44cc4b400c406a2becf1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:456
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4332

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

Query Registry

1

T1012

System Information Discovery

3

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
280KB

MD5
6b5a783e82208994c6c1c99e9f8aca1d

SHA1
39328f6e6c037c86df54b96984099db863a73f38

SHA256
f20591d94d8871054cb5c4e86f58e04cf61f0f27849fabc8f8c2521039180583

SHA512
e0b92aa72ec59dda0e6dd79e4e38fb0d8d8dd01691445eed88ae65027f250088aa2fe3db8209dcbb27b606fad28856d174e13ba3de8bc23a0593f4e43996f414

Download Submit
memory/456-40-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-27-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-26-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-25-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-23-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-24-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/456-21-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4332-35-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-41-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-38-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-37-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-34-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-33-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4332-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4332-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5060-2-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-0-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

Filesize
4KB

Download
memory/5060-3-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-4-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

Filesize
4KB

Download
memory/5060-22-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-5-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-6-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-1-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-7-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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