nanocore | ef271fbcf09c7dc47c0d6ea9606a78f82d3100deaa4dc3f20263911368f1c0da

General

Target

87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe
Size

579KB
MD5

87ffa6d89b74b90e3abf50e0aeee82fa
SHA1

cd1e0bb9551012800b6f2cc26ab477d96567c384
SHA256

ef271fbcf09c7dc47c0d6ea9606a78f82d3100deaa4dc3f20263911368f1c0da
SHA512

498c714a844a10d1d3d90336b1e5c7a50cf9e44712a714d4d5dd9a03bd34c224fdb2360fc402a4ccbca64bea05836e9b34decf2ebe43a096bceb022a487896c7
SSDEEP

6144:mbs5IphIlEmOpiBzoy0Sa38WKgFoyjEZek:4s5bMiBzowakg3YN

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sams1234.ddns.net:7023

127.0.0.1:7023

Mutex

b37959e3-e94e-4a80-8eb1-c38ff95d68d6

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-05-01T21:45:39.433167436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7023
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
b37959e3-e94e-4a80-8eb1-c38ff95d68d6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sams1234.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe

description pid process target process

PID 1728 set thread context of 4632 1728 87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe MSBuild.exe

description	pid	process	target process
PID 1728 set thread context of 4632	1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	MSBuild.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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:

MSBuild.exeschtasks.exeschtasks.exe87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

2300 schtasks.exe
3408 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid process

4632 MSBuild.exe
4632 MSBuild.exe
4632 MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

4632 MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe

pid process

1728 87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 4632 MSBuild.exe

pid	process
2300	schtasks.exe
3408	schtasks.exe

pid	process
4632	MSBuild.exe
4632	MSBuild.exe
4632	MSBuild.exe

pid	process
4632	MSBuild.exe

pid	process
1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	4632	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exeMSBuild.exe

description	pid	process	target process
PID 1728 wrote to memory of 4632	1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe	MSBuild.exe
PID 1728 wrote to memory of 4632	1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe	MSBuild.exe
PID 1728 wrote to memory of 4632	1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe	MSBuild.exe
PID 1728 wrote to memory of 4632	1728	87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe	MSBuild.exe
PID 4632 wrote to memory of 2300	4632	MSBuild.exe	schtasks.exe
PID 4632 wrote to memory of 2300	4632	MSBuild.exe	schtasks.exe
PID 4632 wrote to memory of 2300	4632	MSBuild.exe	schtasks.exe
PID 4632 wrote to memory of 3408	4632	MSBuild.exe	schtasks.exe
PID 4632 wrote to memory of 3408	4632	MSBuild.exe	schtasks.exe
PID 4632 wrote to memory of 3408	4632	MSBuild.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\87ffa6d89b74b90e3abf50e0aeee82fa_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCD62.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2300
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCDF0.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\Temp\tmpCD62.tmp

Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCDF0.tmp

Filesize
1KB

MD5
7f4b37265a0a4b0fea67999d11d911e8

SHA1
1b8e13e6a27c3768c30cf713b79eaa8a757e1349

SHA256
39b16b3a00b6b43c6820357127228c0768a577153014ce7b0ea3c585244dc08b

SHA512
ef97ccfb663555aedc7fdc4b3ac4cd6536c80a778b4ec3bc6124a09544733988de1dac1e6a3714b0d6e8713e3523e0732d5dfcf674f2c5e1f3eadacb0c8e5e03

Download Submit
memory/1728-1-0x00000000000A0000-0x00000000001A0000-memory.dmp

Filesize
1024KB

Download
memory/1728-2-0x0000000000630000-0x0000000000632000-memory.dmp

Filesize
8KB

Download
memory/4632-4-0x0000000074A82000-0x0000000074A83000-memory.dmp

Filesize
4KB

Download
memory/4632-6-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/4632-5-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/4632-3-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4632-14-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/4632-15-0x0000000074A82000-0x0000000074A83000-memory.dmp

Filesize
4KB

Download
memory/4632-16-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/4632-17-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/4632-18-0x0000000074A80000-0x0000000075031000-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