nanocore | b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31

General

Target

b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
Size

254KB
MD5

9ebc6b75390c63799ca45bdceccb1e44
SHA1

6a7fefdfb98c9e5ef12cf157fb6c18911e990b45
SHA256

b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31
SHA512

6b6888211f99165a65f082acbd94c1c75de78e90ffbbad6ceb4ddde6577c742fd4b3addd21203bc26108c92fe30e0c189f1fd9d85fa34656641fe7803fcaa2cf
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQNE:EeGUA5YZazpXUmZhqE

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
Nanocore family
nanocore

Executes dropped EXE 2 IoCs

pid	Process
2684	a1punf5t2of.exe
2336	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
2684	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 2336	2684	a1punf5t2of.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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2336	a1punf5t2of.exe
2336	a1punf5t2of.exe
2336	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2336	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2616 wrote to memory of 2684	2616	b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe	30
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31
PID 2684 wrote to memory of 2336	2684	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
"C:\Users\Admin\AppData\Local\Temp\b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2684
- - 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:2336

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
e8affefcc07ab3470fc6dc928b15c1ca

SHA1
7d55cedfd7d3e811d0b5678c51d61b2740c17c7e

SHA256
c427130ae416747a5f22b43758c0d807429e1e758a4a1c75bb2c9da0009c86ac

SHA512
0842093f4ef1d0b2328eaae457cd82794bafea1f26276e63c3d6bc4f2ed88ce357cd197fb799169124303424b084f5d7ca27e94f2744d63aeb9dc02ec475c2eb

Download Submit
memory/2336-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2336-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2336-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2616-5-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-3-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-1-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-2-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-4-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-15-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-0-0x0000000074051000-0x0000000074052000-memory.dmp

Filesize
4KB

Download
memory/2616-6-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-16-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-20-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-17-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-19-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-18-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-37-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads