nanocore | 20751156d821460ab4c7db367bf964831c51daac7bf4a4eecfa4c0cf23816490

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14-06-2024 10:19

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General

Target

a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe
Size

234KB
MD5

a929acb4997a9366c61cb3edcc0b2498
SHA1

77bb8b60b1341f2c0d021b4baefb7e7f6694ccca
SHA256

20751156d821460ab4c7db367bf964831c51daac7bf4a4eecfa4c0cf23816490
SHA512

55e5ea17d289bfae1fbedbc7f5dba812c01f4802442a502c72af28dd5ebed9c7e5d2f2565e19f3e20159aa5a3a566e06ceba746e53d1192ccb0eaf1480e5f231
SSDEEP

6144:CLV6Bta6dtJmakIM5SP2ZCt/YSyHLDe1YO9o+l:CLV6BtpmkvkfvMo

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

googleupdater.duckdns.org:54984

Mutex

cc8a7f9a-5670-4114-ad66-34c412bf2ffc

Attributes

activate_away_mode
false
backup_connection_host
googleupdater.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2016-11-19T22:07:50.740901936Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
54984
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
cc8a7f9a-5670-4114-ad66-34c412bf2ffc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
googleupdater.duckdns.org
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
Executes dropped EXE 1 IoCs

Processes:

Tempexplorer.exe

pid process

1744 Tempexplorer.exe
Loads dropped DLL 2 IoCs

Processes:

a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe

pid process

1736 a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe
1736 a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe
Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

Tempexplorer.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NTFS Monitor = "C:\\Program Files (x86)\\NTFS Monitor\\ntfsmon.exe" Tempexplorer.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Tempexplorer.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Tempexplorer.exe
Drops file in Program Files directory 2 IoCs

Processes:

Tempexplorer.exe

description ioc process

File created C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe Tempexplorer.exe
File opened for modification C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe Tempexplorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2104 schtasks.exe
2776 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Tempexplorer.exe

pid process

1744 Tempexplorer.exe
1744 Tempexplorer.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Tempexplorer.exe

pid process

1744 Tempexplorer.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Tempexplorer.exe

description pid process

Token: SeDebugPrivilege 1744 Tempexplorer.exe
Token: SeDebugPrivilege 1744 Tempexplorer.exe

pid	process
1744	Tempexplorer.exe

pid	process
1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe
1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NTFS Monitor = "C:\\Program Files (x86)\\NTFS Monitor\\ntfsmon.exe"	Tempexplorer.exe

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

description	ioc	process
File created	C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe	Tempexplorer.exe
File opened for modification	C:\Program Files (x86)\NTFS Monitor\ntfsmon.exe	Tempexplorer.exe

pid	process
2104	schtasks.exe
2776	schtasks.exe

pid	process
1744	Tempexplorer.exe
1744	Tempexplorer.exe

pid	process
1744	Tempexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1744	Tempexplorer.exe
Token: SeDebugPrivilege	1744	Tempexplorer.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exeTempexplorer.exe

description	pid	process	target process
PID 1736 wrote to memory of 1744	1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe	Tempexplorer.exe
PID 1736 wrote to memory of 1744	1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe	Tempexplorer.exe
PID 1736 wrote to memory of 1744	1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe	Tempexplorer.exe
PID 1736 wrote to memory of 1744	1736	a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe	Tempexplorer.exe
PID 1744 wrote to memory of 2104	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2104	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2104	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2104	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2776	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2776	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2776	1744	Tempexplorer.exe	schtasks.exe
PID 1744 wrote to memory of 2776	1744	Tempexplorer.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a929acb4997a9366c61cb3edcc0b2498_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736

C:\Users\Admin\AppData\Local\Tempexplorer.exe
"C:\Users\Admin\AppData\Local\Tempexplorer.exe"
2⤵
- Executes dropped EXE
- 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:1744

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NTFS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1F24.tmp"
3⤵
- Creates scheduled task(s)
PID:2104

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NTFS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1FC1.tmp"
3⤵
- Creates scheduled task(s)
PID:2776

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1F24.tmp
Filesize
1KB

MD5
c32c74e937be74259424933c09985921

SHA1
b0a7f3b2609bd66e695181e492a904c994c40553

SHA256
1ae1a9bb3477f5dcb9c0be4a919e54eca05647e254725af8e9a552628b255cef

SHA512
96e17111f01c88c2b8edaa2ec08b4cd5dd40f4e0b78dcf316d7c3ca3b69267fd63a4f91ddf01baa50ddcee7b4fa393d91e4ba80087010caf7accf47dac29889e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1FC1.tmp
Filesize
1KB

MD5
981e126601526eaa5b0ad45c496c4465

SHA1
d610d6a21a8420cc73fcd3e54ddae75a5897b28b

SHA256
11ae277dfa39e7038b782ca6557339e7fe88533fe83705c356a1500a1402d527

SHA512
a59fb704d931ccb7e1ec1a7b98e24ccd8708be529066c6de4b673098cdebef539f7f50d9e051c43954b5a8e7f810862b3a4ede170f131e080dadc3e763ed4bdb

Download Submit
\Users\Admin\AppData\Local\Tempexplorer.exe
Filesize
203KB

MD5
2a10ebef275e2d24c8f3e3d8dd01e929

SHA1
5d82da79265984af7399c6d19766b9d3afb4fe59

SHA256
226de25b7d0372d2f18c5f080d58a2766b50b70bb2f4f4505071acd45407abaa

SHA512
06fe337e2444b15a3ac0a16645a9b114033f4c6ebc0465c660a739615a7d1e134dfebfc630565a8d5df11aa3e7d38a186a1a36e7746322492f7f65031ae2b32c

Download Submit
memory/1736-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/1736-1-0x0000000000E80000-0x0000000000EC2000-memory.dmp

Filesize
264KB

Download
memory/1736-2-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/1736-13-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-14-0x000000006FF31000-0x000000006FF32000-memory.dmp

Filesize
4KB

Download
memory/1744-15-0x000000006FF30000-0x00000000704DB000-memory.dmp

Filesize
5.7MB

Download
memory/1744-16-0x000000006FF30000-0x00000000704DB000-memory.dmp

Filesize
5.7MB

Download
memory/1744-24-0x000000006FF30000-0x00000000704DB000-memory.dmp

Filesize
5.7MB

Download