nanocore | 5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0c

General

Target

5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe
Size

282KB
MD5

b1a4ffa52e3a640f99f45e8596b15620
SHA1

9567d81165ad2a0c83432e020073011f5d17e431
SHA256

5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0c
SHA512

58f9343b2d596ab0be8ea62863c43d41a91aaef9031382e2604ecfefb09534eb0ac93eb9f20d80b1d48b95d1610f1591e1c75dc5ea0fb82a0555ca03d8c26fcc
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfMh:boSeGUA5YZazpXUmZhZ6SN

Score

10^/10

nanocore discovery evasion 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

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

Processes:

5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
2984	a1punf5t2of.exe
2368	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 2984 set thread context of 2368	2984	a1punf5t2of.exe	101

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

Processes:

a1punf5t2of.exe5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid	Process
2368	a1punf5t2of.exe
2368	a1punf5t2of.exe
2368	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
2368	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	2368	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 4404 wrote to memory of 2984	4404	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe	100
PID 4404 wrote to memory of 2984	4404	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe	100
PID 4404 wrote to memory of 2984	4404	5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe	100
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101
PID 2984 wrote to memory of 2368	2984	a1punf5t2of.exe	101

C:\Users\Admin\AppData\Local\Temp\5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe
"C:\Users\Admin\AppData\Local\Temp\5ea576486114111aaf0a27aff5d1d7a2b81484518392e868fa8efc7ea98cff0cN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4404
- 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:2984
- - 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:2368

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
282KB

MD5
670faa610fffa37df8f7e664a5c72242

SHA1
df748fb4d8b92a3b04e0b5ab28898d82a2e5ac19

SHA256
fe9d51b7cd810e286520689ade0ed225ae79484cc9ec8ff8f87cbfeac5f439f1

SHA512
d90bb8526ee6281e2c7057fe4faa56a382bcf2efe3a5331e2f7d19bd4217ddfe7288286951a2582758dc2e040daae66287d45c40171725017e3de008e2eaf92e

Download Submit
memory/2368-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2368-43-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-40-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-39-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-37-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-36-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-35-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2368-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2368-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-26-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-21-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-24-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-25-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-42-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-27-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-28-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-29-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2984-23-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-22-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-7-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-6-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-5-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-4-0x0000000074B72000-0x0000000074B73000-memory.dmp

Filesize
4KB

Download
memory/4404-3-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-2-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4404-0-0x0000000074B72000-0x0000000074B73000-memory.dmp

Filesize
4KB

Download
memory/4404-1-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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