nanocore | c8b230237028e5c7ed93e21458237528890732bf60167e37e835d4db4e79f9e4

General

Target

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
Size

906KB
MD5

2bc77f66378cf099b87fcfdc26e80ec6
SHA1

e48de2116d9c931aa2051ad81e57af6ec5cfedde
SHA256

c8b230237028e5c7ed93e21458237528890732bf60167e37e835d4db4e79f9e4
SHA512

e298d23b5bcdb854d942eca1273e8ba1f1d97860b346b0ad5d8b488a405d7de87c6a5da4fefbb00def6bcc7c2146ad3b50327c957124b180f3efe3972f7f7958
SSDEEP

24576:kIQrUm0YeCJiiNxg+5OGEK3QP1p2GqiUPb:OULXCkeA+3QGO4

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

new2021.myq-see.com:2021

185.140.53.138:2021

Mutex

4e93981f-5ccc-40a6-ab4d-8d13e34d915c

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.138
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-16T08:01:24.315081336Z
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
2021
default_group
2021
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
4e93981f-5ccc-40a6-ab4d-8d13e34d915c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
new2021.myq-see.com
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Monitor = "C:\\Program Files (x86)\\UDP Monitor\\udpmon.exe"	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	pid	process	target process
PID 1464 set thread context of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\UDP Monitor\udpmon.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
File created	C:\Program Files (x86)\UDP Monitor\udpmon.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

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

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2920 schtasks.exe
2728 schtasks.exe
1880 schtasks.exe

pid	process
2920	schtasks.exe
2728	schtasks.exe
1880	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

pid	process
1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

pid process

2748 2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

pid	process
2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
Token: SeDebugPrivilege	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

description	pid	process	target process
PID 1464 wrote to memory of 2920	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 1464 wrote to memory of 2920	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 1464 wrote to memory of 2920	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 1464 wrote to memory of 2920	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 1464 wrote to memory of 2748	1464	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
PID 2748 wrote to memory of 2728	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 2728	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 2728	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 2728	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 1880	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 1880	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 1880	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe
PID 2748 wrote to memory of 1880	2748	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hCwBlullNXkFm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp675B.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2920

C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
"{path}"
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
- Suspicious use of WriteProcessMemory
PID:2748

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6AB5.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2728

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6D45.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:1880

Network

MITRE ATT&CK Matrix ATT&CK v13

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 Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp675B.tmp
Filesize
1KB

MD5
1a1e846d4985ae7973501aa930cb38b7

SHA1
a8aabb568a71efb6f5f4b30f3e6e748efaaa1275

SHA256
bc7450a5b36757653c625313faf6306b4c030bd1656425d0230217ab2ef86e07

SHA512
071f76991ae7b18ed031c40c74f7eddf4d1167f994070d0b8b641706e1303dc72c3e70ae80c80bb89e02b3ad07279ce39a677b59120b65a0fe313c0317be2632

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6AB5.tmp
Filesize
1KB

MD5
fbc65d39ca3504f5e3038eab4619a55e

SHA1
5fc3077235483cafe9dd293aea7238bf241d5288

SHA256
80dcb492a804034b7159e538dfc6e984af84ded8725c5e585ae688346f5e45c1

SHA512
35b476713f15240d58fd9551c3c410ffbd0672e34e668bb538a2db84c89385d55086c3ab728220ab00ac542ae2e84aebdb11bb04b6b136b1f7a8fc76873039d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6D45.tmp
Filesize
1KB

MD5
179f6a368194b3d8490223f22126274b

SHA1
cc2997c7fde3cfe0dcf267bf3b6338a7e2ecf2d0

SHA256
cdfb59fb9dabcedf57f84d9b3ea596f6ce26f8c559b503b6980a42738cf2f4d8

SHA512
8b1c1b2a8db227db2e741171c29e4bfcaad2919665cde77eb5b4058b45fe7c78b46e2ef1bc5b896aa0e172219c4a43b647d68b62db39c8f51ac0ed159e4f042b

Download Submit
memory/1464-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1464-1-0x0000000001320000-0x0000000001408000-memory.dmp

Filesize
928KB

Download
memory/1464-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1464-3-0x00000000002D0000-0x00000000002DA000-memory.dmp

Filesize
40KB

Download
memory/1464-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1464-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1464-6-0x0000000005740000-0x00000000057C4000-memory.dmp

Filesize
528KB

Download
memory/1464-25-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2748-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-24-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2748-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-26-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2748-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-34-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/2748-35-0x00000000003B0000-0x00000000003CE000-memory.dmp

Filesize
120KB

Download
memory/2748-36-0x00000000003D0000-0x00000000003DA000-memory.dmp

Filesize
40KB

Download
memory/2748-37-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2748-38-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads