nanocore | 5b5a0f32647df552d3337225f9cb3467844987d1ffaeddcf190f524b097abc13

General

Target

3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
Size

315KB
MD5

3d248944ca3304d6c97ab8b934c869d2
SHA1

04b032186ecd5b3099c54bd2eec6e8c7a5fdffff
SHA256

5b5a0f32647df552d3337225f9cb3467844987d1ffaeddcf190f524b097abc13
SHA512

8d556ada681e26418a06214725ebf5647035253b9085f1a3186171e162d8dd10d11d75c3cc943a562de526739556ff5ce83fdffb5017dd2261a83710ccd3342c
SSDEEP

6144:gf5yfbYDms7zY0U5T1tiXt7Mey/oRbw5o07L26:45dDmj55T1gZy/N5o0XJ

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wumpwifi.onthewifi.com:2017

185.56.90.77:2017

Mutex

023952f5-9a94-49ae-b9eb-3069891b2f3b

Attributes

activate_away_mode
true
backup_connection_host
185.56.90.77
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-01-28T00:48:54.002261736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
2017
default_group
Thai Beverage
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
023952f5-9a94-49ae-b9eb-3069891b2f3b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
wumpwifi.onthewifi.com
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Skyppe update.exe.lnk	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	svhost.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	svhost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3664 set thread context of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
4664	svhost.exe
4664	svhost.exe
4664	svhost.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4664	svhost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
Token: SeDebugPrivilege	4664	svhost.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 3632	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	86
PID 3664 wrote to memory of 3632	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	86
PID 3664 wrote to memory of 3632	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	86
PID 3632 wrote to memory of 1196	3632	cmd.exe	88
PID 3632 wrote to memory of 1196	3632	cmd.exe	88
PID 3632 wrote to memory of 1196	3632	cmd.exe	88
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89
PID 3664 wrote to memory of 4664	3664	3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3d248944ca3304d6c97ab8b934c869d2_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3632
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\Skyppe\Skyppe update.exe.lnk" /f
    3⤵
    PID:1196
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4664

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svhost.exe

Filesize
89KB

MD5
84c42d0f2c1ae761bef884638bc1eacd

SHA1
4353881e7f4e9c7610f4e0489183b55bb58bb574

SHA256
331487446653875bf1e628b797a5283e40056654f7ff328eafbe39b0304480d3

SHA512
43c307a38faa3a4b311597034cf75035a4434a1024d2a54e867e6a94b53b677898d71a858438d119000e872a7a6e92c5b31d277a8c207a94375ed4fd3c7beb87

Download Submit
memory/3664-0-0x0000000074412000-0x0000000074413000-memory.dmp

Filesize
4KB

Download
memory/3664-1-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/3664-2-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/3664-22-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4664-14-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-16-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-15-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-20-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-23-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download
memory/4664-24-0x0000000074410000-0x00000000749C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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