nanocore | e74e7232c998a898125a7281c96641ec4f0b2d2c3119aaecf82a725e0bf1bb40

General

Target

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
Size

517KB
MD5

7ed46ef62986500a2c281cd6c8afbe4e
SHA1

eb13c8ca4fae61f7d11267410cdbfb1e9a97f0b7
SHA256

e74e7232c998a898125a7281c96641ec4f0b2d2c3119aaecf82a725e0bf1bb40
SHA512

571f327f1f3325e759002ee813ccbb7905b92f56325f6c803a15e375409a8e90dce79873d0a6ab9545ef45860124e6f8986ff8377a2719b60f94bbd9ca5750a8
SSDEEP

6144:XlMtZ6um4GrihBWEk3Z4SGPokPmpSdDOkUj3KFMWL+u:XytZwihQEkWS0RPmpSdDOkfFMu

Score

10^/10

nanocore agilenet defense_evasion discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zhardyalzabi.ddnsfree.com:2222

sizisizi.freeddns.org:2222

Mutex

45df05e8-cc60-4424-890d-1c0e50760a06

Attributes

activate_away_mode
true
backup_connection_host
sizisizi.freeddns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-22T18:25:51.180931336Z
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
2222
default_group
Group B
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
45df05e8-cc60-4424-890d-1c0e50760a06
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
zhardyalzabi.ddnsfree.com
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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

System Binary Proxy Execution: Regsvcs/Regasm 1 TTPs 2 IoCs

Abuse Regasm to proxy execution of malicious code.

defense_evasion

Regsvcs/Regasm

T1218.009

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe

description	ioc	process
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\RegAsm.exe	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Local\Temp\RegAsm.exe	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

2604 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exeRegAsm.exe

pid process

2276 7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
2604 RegAsm.exe

pid	process
2604	RegAsm.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/2276-6-0x0000000000520000-0x000000000052A000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe

description pid process target process

PID 2276 set thread context of 2604 2276 7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe RegAsm.exe

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

description	pid	process	target process
PID 2276 set thread context of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	RegAsm.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:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exeRegAsm.exeschtasks.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

2856 schtasks.exe
2068 schtasks.exe

pid	process
2856	schtasks.exe
2068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exeRegAsm.exe

pid	process
2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2604 RegAsm.exe

pid	process
2604	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
Token: SeDebugPrivilege	2604	RegAsm.exe
Token: SeDebugPrivilege	2604	RegAsm.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exeRegAsm.exe

description	pid	process	target process
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2276 wrote to memory of 2604	2276	7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe	RegAsm.exe
PID 2604 wrote to memory of 2856	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2856	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2856	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2856	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2068	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2068	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2068	2604	RegAsm.exe	schtasks.exe
PID 2604 wrote to memory of 2068	2604	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7ed46ef62986500a2c281cd6c8afbe4e_JaffaCakes118.exe"
1⤵
- System Binary Proxy Execution: Regsvcs/Regasm
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- 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:2604

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA499.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2856

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA545.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2068

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

System Binary Proxy Execution

1

T1218

Regsvcs/Regasm

1

T1218.009

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA499.tmp

Filesize
1KB

MD5
4cd7da0133ff64f40216341d95fe30bb

SHA1
88146cfd7754b988f50e929d876f33dc9916758f

SHA256
37cce77e24a3c3d5ab28c16f726ef6a62c553acd972e256927f69064c4e1cfde

SHA512
fa5b84f207fd9f20b2eace6cda9124e9d718fc80dc0a5fab31507f372d15ba69e1098a26e2e7036ba559ca52a99cfd804ca99ba68bda0a60386a33197722df8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA545.tmp

Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/2276-29-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-2-0x0000000000410000-0x000000000042E000-memory.dmp

Filesize
120KB

Download
memory/2276-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-6-0x0000000000520000-0x000000000052A000-memory.dmp

Filesize
40KB

Download
memory/2276-7-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-9-0x00000000005D0000-0x00000000005DA000-memory.dmp

Filesize
40KB

Download
memory/2276-3-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-1-0x0000000000BA0000-0x0000000000C26000-memory.dmp

Filesize
536KB

Download
memory/2276-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2276-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2604-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-37-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2604-38-0x00000000006C0000-0x00000000006DE000-memory.dmp

Filesize
120KB

Download
memory/2604-39-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads