nanocore | 4ea8a94f582fea233440b0943d6315abf6703c14b35f453ab6381f08e817b38a

General

Target

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
Size

1.8MB
MD5

484b479433f60e32a3c9b3e2f55e6852
SHA1

6236ae3c305dcdf29c42c0a443239b7587967fda
SHA256

4ea8a94f582fea233440b0943d6315abf6703c14b35f453ab6381f08e817b38a
SHA512

0705ac2ee10511bbbccf6345549f749cef2eb993fa60a091263edc743e292b4c4fc3ee9087a493c99df354ddf904b804748d508a347eff04e236144838cceb24
SSDEEP

6144:kYQMRl56N2MycDSP3Ihcy3ZUD1nuNMJ1YFTCtmTxu2YMYjOqyW+BCFseJhl2zk8X:kT

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.6:1212

Mutex

e6456746-0727-46dd-ad3f-daedf005468e

Attributes

activate_away_mode
true
backup_connection_host
79.134.225.6
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-06T13:51:53.653503436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1212
default_group
gg
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
e6456746-0727-46dd-ad3f-daedf005468e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.6
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

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:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Subsystem = "C:\\Program Files (x86)\\NAT Subsystem\\natss.exe"	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

pid	process
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	pid	process	target process
PID 772 set thread context of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	ioc	process
File created	C:\Program Files (x86)\NAT Subsystem\natss.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\NAT Subsystem\natss.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

348 772 WerFault.exe 484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3180 timeout.exe

pid	pid_target	process	target process
348	772	WerFault.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

pid	process
3180	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

pid	process
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
748	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
748	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
748	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

pid process

748 484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

pid	process
748	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
Token: SeDebugPrivilege	748	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.execmd.exe

description	pid	process	target process
PID 772 wrote to memory of 1560	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	cmd.exe
PID 772 wrote to memory of 1560	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	cmd.exe
PID 772 wrote to memory of 1560	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	cmd.exe
PID 1560 wrote to memory of 3180	1560	cmd.exe	timeout.exe
PID 1560 wrote to memory of 3180	1560	cmd.exe	timeout.exe
PID 1560 wrote to memory of 3180	1560	cmd.exe	timeout.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
PID 772 wrote to memory of 748	772	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe	484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1560

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:3180

C:\Users\Admin\AppData\Local\Temp\484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\484b479433f60e32a3c9b3e2f55e6852_JaffaCakes118.exe"
2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 1432
2⤵
- Program crash
PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 772 -ip 772
1⤵
PID:4448

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/748-14-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

Filesize
120KB

Download
memory/748-7-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/748-8-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/748-18-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/748-9-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/748-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/748-6-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/748-10-0x00000000033A0000-0x00000000033AA000-memory.dmp

Filesize
40KB

Download
memory/748-15-0x0000000005BE0000-0x0000000005BEA000-memory.dmp

Filesize
40KB

Download
memory/748-13-0x0000000003410000-0x000000000341A000-memory.dmp

Filesize
40KB

Download
memory/772-5-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/772-4-0x0000000006200000-0x00000000067A4000-memory.dmp

Filesize
5.6MB

Download
memory/772-0-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/772-2-0x0000000004F30000-0x0000000004FCC000-memory.dmp

Filesize
624KB

Download
memory/772-16-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/772-1-0x00000000003D0000-0x000000000059C000-memory.dmp

Filesize
1.8MB

Download
memory/772-3-0x00000000028B0000-0x00000000028F8000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads