nanocore | 71a63ee32124b1be8c33c6ba8a1879409b038af07fba17dc40d2df78614dd40b

General

Target

90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe
Size

1.4MB
MD5

90ed1ecaaf3e45be409db491c473146a
SHA1

1940d4fa5e7a112ef0c47d5fd3be49755f708a4f
SHA256

71a63ee32124b1be8c33c6ba8a1879409b038af07fba17dc40d2df78614dd40b
SHA512

9e833aa8ecc6e3f559a620de468ff64724224af1f9d8c48c6e46b2f1caf2580bd078e6cd75686029c0451b700cb64a60201d0562a134b0817f4d28a62199dbf6
SSDEEP

24576:9AHnh+eWsN3skA4RV1Hom2KXMmHaUpFUp700KCHRr5uaW5:ch+ZkldoPK8YaUZ

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

bnow.duckdns.org:4156

Mutex

fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb

Attributes

activate_away_mode
true
backup_connection_host
bnow.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-20T04:39:27.808758936Z
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
4156
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
fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
bnow.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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
Executes dropped EXE 2 IoCs

Processes:

VsGraphicsDesktopEngine.exeVsGraphicsDesktopEngine.exe

pid process

2820 VsGraphicsDesktopEngine.exe
2264 VsGraphicsDesktopEngine.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

pid	process
2820	VsGraphicsDesktopEngine.exe
2264	VsGraphicsDesktopEngine.exe

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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exeVsGraphicsDesktopEngine.exeVsGraphicsDesktopEngine.exe

description	pid	process	target process
PID 836 set thread context of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 2820 set thread context of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 set thread context of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.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 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2384 schtasks.exe
2628 schtasks.exe
2040 schtasks.exe
1476 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

2436 RegAsm.exe
2436 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2436 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2436 RegAsm.exe

pid	process
2384	schtasks.exe
2628	schtasks.exe
2040	schtasks.exe
1476	schtasks.exe

pid	process
2436	RegAsm.exe
2436	RegAsm.exe

pid	process
2436	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2436	RegAsm.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exeRegAsm.exetaskeng.exeVsGraphicsDesktopEngine.exeVsGraphicsDesktopEngine.exe

description	pid	process	target process
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 836 wrote to memory of 2436	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	RegAsm.exe
PID 2436 wrote to memory of 2384	2436	RegAsm.exe	schtasks.exe
PID 2436 wrote to memory of 2384	2436	RegAsm.exe	schtasks.exe
PID 2436 wrote to memory of 2384	2436	RegAsm.exe	schtasks.exe
PID 2436 wrote to memory of 2384	2436	RegAsm.exe	schtasks.exe
PID 836 wrote to memory of 2628	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	schtasks.exe
PID 836 wrote to memory of 2628	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	schtasks.exe
PID 836 wrote to memory of 2628	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	schtasks.exe
PID 836 wrote to memory of 2628	836	90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe	schtasks.exe
PID 2808 wrote to memory of 2820	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2820	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2820	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2820	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2848	2820	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2820 wrote to memory of 2040	2820	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2820 wrote to memory of 2040	2820	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2820 wrote to memory of 2040	2820	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2820 wrote to memory of 2040	2820	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2808 wrote to memory of 2264	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2264	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2264	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2808 wrote to memory of 2264	2808	taskeng.exe	VsGraphicsDesktopEngine.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 2860	2264	VsGraphicsDesktopEngine.exe	RegAsm.exe
PID 2264 wrote to memory of 1476	2264	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2264 wrote to memory of 1476	2264	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2264 wrote to memory of 1476	2264	VsGraphicsDesktopEngine.exe	schtasks.exe
PID 2264 wrote to memory of 1476	2264	VsGraphicsDesktopEngine.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\90ed1ecaaf3e45be409db491c473146a_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:836

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2436

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2240.tmp"
3⤵
- Creates scheduled task(s)
PID:2384

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn SgrmBroker /tr "C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe" /sc minute /mo 1 /F
2⤵
- Creates scheduled task(s)
PID:2628

C:\Windows\system32\taskeng.exe
taskeng.exe {67D521F9-514C-4565-9D50-A8B91DD9A20E} S-1-5-21-2737914667-933161113-3798636211-1000:PUMARTNR\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2808

C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe
C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2820

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:2848

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn SgrmBroker /tr "C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe" /sc minute /mo 1 /F
3⤵
- Creates scheduled task(s)
PID:2040

C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe
C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:2860

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn SgrmBroker /tr "C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe" /sc minute /mo 1 /F
3⤵
- Creates scheduled task(s)
PID:1476

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2240.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Roaming\catsrv\VsGraphicsDesktopEngine.exe
Filesize
1.4MB

MD5
16d7ec160bb359493765e48d6204f16e

SHA1
b4045764673bca4d2f34677ae3007069a92ef8fb

SHA256
fd6f0b9ad5b855ad1cb06130e18fc94273b9a002268daf5bcbd30d0973d967b7

SHA512
0909e45a06122a5d6ec79bd19764b8901f5a5ca2b773896b286918650c5644168ba62a2dbba4f59121aa64adfced03634fb017bb9d5d38c503f77c7a4e2ad383

Download Submit
memory/836-0-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2436-16-0x0000000073F50000-0x00000000744FB000-memory.dmp

Filesize
5.7MB

Download
memory/2436-3-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/2436-9-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/2436-11-0x0000000073F52000-0x0000000073F54000-memory.dmp

Filesize
8KB

Download
memory/2436-10-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/2436-2-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/2436-18-0x0000000073F52000-0x0000000073F54000-memory.dmp

Filesize
8KB

Download
memory/2436-19-0x0000000073F50000-0x00000000744FB000-memory.dmp

Filesize
5.7MB

Download
memory/2436-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2860-39-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads