nanocore | 60736642b3c21361fb3aab74bd57a05a2f1f13f5b19fb7c970466bddafd4925f

General

Target

JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
Size

329KB
MD5

3ab4567f554b6bb6b7d042e79f8ff20d
SHA1

2665f3b61b3689358350b6b1c4133d8c85659280
SHA256

60736642b3c21361fb3aab74bd57a05a2f1f13f5b19fb7c970466bddafd4925f
SHA512

c357a5cce8ebcf195bcaa0e43e201181a74d3e408a13903eacc896ec8fed8ac940dffb32b64f755e4089d0062edbf8961472d012bb3c36361c2acc856c39c76e
SSDEEP

6144:k7rV+JJ8CsHamG5g8fEysBRZunvVZXP/0i1jxDBAQ+KM+yrvdpYiwOeJ+32Qh:srV+z8BIRMBRZ6VhXfjjO+yzPwbJ0

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

quasbackup2017.mywire.org:3847

127.0.0.1:3847

Mutex

decc4a5c-f17e-4e9c-a7cb-718ee9a997be

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
127.0.0.1
buffer_size
65535
build_time
2017-05-14T07:16:35.737114036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
3847
default_group
shaw click
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
decc4a5c-f17e-4e9c-a7cb-718ee9a997be
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
quasbackup2017.mywire.org
primary_dns_server
quasbackup2017.mywire.org
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
Nanocore family
nanocore

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.lnk	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe

Executes dropped EXE 2 IoCs

pid	Process
2188	app.exe
2928	app.exe

Loads dropped DLL 3 IoCs

pid	Process
2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
2808	dw20.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2188 set thread context of 2928	2188	app.exe	31

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

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2188	app.exe
2188	app.exe
2188	app.exe
2928	app.exe
2928	app.exe
2928	app.exe
2928	app.exe
2928	app.exe
2928	app.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	app.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
Token: SeDebugPrivilege	2188	app.exe
Token: SeDebugPrivilege	2928	app.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2188	2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe	30
PID 2296 wrote to memory of 2188	2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe	30
PID 2296 wrote to memory of 2188	2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe	30
PID 2296 wrote to memory of 2188	2296	JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe	30
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2808	2188	app.exe	32
PID 2188 wrote to memory of 2808	2188	app.exe	32
PID 2188 wrote to memory of 2808	2188	app.exe	32
PID 2188 wrote to memory of 2808	2188	app.exe	32
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31
PID 2188 wrote to memory of 2928	2188	app.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3ab4567f554b6bb6b7d042e79f8ff20d.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2928
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 608
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe

Filesize
329KB

MD5
3ab4567f554b6bb6b7d042e79f8ff20d

SHA1
2665f3b61b3689358350b6b1c4133d8c85659280

SHA256
60736642b3c21361fb3aab74bd57a05a2f1f13f5b19fb7c970466bddafd4925f

SHA512
c357a5cce8ebcf195bcaa0e43e201181a74d3e408a13903eacc896ec8fed8ac940dffb32b64f755e4089d0062edbf8961472d012bb3c36361c2acc856c39c76e

Download Submit
memory/2188-13-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-14-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-28-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-21-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-12-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-11-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2188-19-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-17-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-0-0x0000000074931000-0x0000000074932000-memory.dmp

Filesize
4KB

Download
memory/2296-2-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-1-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-3-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2928-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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