nanocore | f061fac750ab351979ae7c937a14b72f91c98af2b7101a200577ea490c127d80

General

Target

ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe
Size

513KB
MD5

ff0afeb2e1ecb89d42ff2bfce8fef52b
SHA1

a3b69f44392c41a8e6ea680f5b3e6429ef0c54d9
SHA256

f061fac750ab351979ae7c937a14b72f91c98af2b7101a200577ea490c127d80
SHA512

8cdd30cada450beb16fc5849fe3000765aeaa79c0b9d7ae2f4d8824f3aa0cbf7399dad87f08b97c42663d6fb8f41bea8429cf0013fb8e7b07f39339fbca66365
SSDEEP

12288:qMrXTVmBMaNOel5dkieibxj0tZLbUDHPp6vcG3+ALfnD:zXTVmqr9ieiBECHh60G3tLf

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

95.141.43.197:1990

127.0.0.1:1990

Mutex

657717bf-3186-46ac-b768-4ebefec20c1b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-17T11:41:28.894134736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1990
default_group
NOVEMBER 5
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
657717bf-3186-46ac-b768-4ebefec20c1b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
95.141.43.197
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

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:

ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

ObiShare.exeObiShare.exe

pid	Process
1788	ObiShare.exe
3388	ObiShare.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ObiShare.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ObiShare = "C:\\Users\\Admin\\AppData\\Local\\ObiShare.exe -boot"	ObiShare.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

ObiShare.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ObiShare.exe

description	pid	Process	procid_target
PID 1788 set thread context of 3388	1788	ObiShare.exe	96

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 5 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:

ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.execmd.execmd.exeObiShare.exeObiShare.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ObiShare.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ObiShare.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ObiShare.exe

pid	Process
3388	ObiShare.exe
3388	ObiShare.exe
3388	ObiShare.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

ObiShare.exe

pid	Process
3388	ObiShare.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exeObiShare.exeObiShare.exe

description	pid	Process
Token: SeDebugPrivilege	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe
Token: SeDebugPrivilege	1788	ObiShare.exe
Token: SeDebugPrivilege	3388	ObiShare.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.execmd.exeObiShare.exe

description	pid	Process	procid_target
PID 1624 wrote to memory of 3680	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	89
PID 1624 wrote to memory of 3680	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	89
PID 1624 wrote to memory of 3680	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	89
PID 1624 wrote to memory of 3340	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	91
PID 1624 wrote to memory of 3340	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	91
PID 1624 wrote to memory of 3340	1624	ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe	91
PID 3340 wrote to memory of 1788	3340	cmd.exe	93
PID 3340 wrote to memory of 1788	3340	cmd.exe	93
PID 3340 wrote to memory of 1788	3340	cmd.exe	93
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96
PID 1788 wrote to memory of 3388	1788	ObiShare.exe	96

C:\Users\Admin\AppData\Local\Temp\ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\ff0afeb2e1ecb89d42ff2bfce8fef52b_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\ObiShare.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\ObiShare.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Users\Admin\AppData\Local\ObiShare.exe
    "C:\Users\Admin\AppData\Local\ObiShare.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\Users\Admin\AppData\Local\ObiShare.exe
      "C:\Users\Admin\AppData\Local\ObiShare.exe"
      4⤵
      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:3388

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\Local\ObiShare.exe

Filesize
513KB

MD5
ff0afeb2e1ecb89d42ff2bfce8fef52b

SHA1
a3b69f44392c41a8e6ea680f5b3e6429ef0c54d9

SHA256
f061fac750ab351979ae7c937a14b72f91c98af2b7101a200577ea490c127d80

SHA512
8cdd30cada450beb16fc5849fe3000765aeaa79c0b9d7ae2f4d8824f3aa0cbf7399dad87f08b97c42663d6fb8f41bea8429cf0013fb8e7b07f39339fbca66365

Download Submit
memory/1624-13-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1624-2-0x0000000005360000-0x00000000053F2000-memory.dmp

Filesize
584KB

Download
memory/1624-3-0x0000000007880000-0x00000000078EC000-memory.dmp

Filesize
432KB

Download
memory/1624-4-0x0000000007F10000-0x00000000084B4000-memory.dmp

Filesize
5.6MB

Download
memory/1624-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1624-6-0x0000000007960000-0x000000000797E000-memory.dmp

Filesize
120KB

Download
memory/1624-7-0x0000000002CB0000-0x0000000002CBA000-memory.dmp

Filesize
40KB

Download
memory/1624-1-0x0000000000940000-0x00000000009CA000-memory.dmp

Filesize
552KB

Download
memory/1624-9-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1624-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1624-8-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1788-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1788-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1788-17-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1788-20-0x0000000009270000-0x000000000930C000-memory.dmp

Filesize
624KB

Download
memory/1788-24-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3388-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3388-26-0x0000000005110000-0x000000000511A000-memory.dmp

Filesize
40KB

Download
memory/3388-27-0x00000000053E0000-0x00000000053FE000-memory.dmp

Filesize
120KB

Download
memory/3388-28-0x0000000005D30000-0x0000000005D3A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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