nanocore | 301cd4c375459544240e253b5f1fea9e0688d7d1770c69bb06dd9408960543e9

General

Target

JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
Size

737KB
MD5

7ef62831b23949060085a8d2946523cd
SHA1

5e34a833f23867351a509858fff5e74e9f120aa9
SHA256

301cd4c375459544240e253b5f1fea9e0688d7d1770c69bb06dd9408960543e9
SHA512

72b896e77208151be212134b623feb86b748c03a6b7c1d5c5bc457837f9c333677c598fff0361d819ac3483be167b06104b61599f3a1c0e6869bcde793ac81a0
SSDEEP

12288:WNXtZYRSgTrgpGZiGd/rpbK5ITVibUU43Gw7hTQKDfYOdMkuvMNptn0UXqJFTP4:WNYLxiG1pWKTVN3GUTQ8vawqM

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mec.sytes.net:3259

Mutex

9358a53f-433c-42f5-bd3f-14ae4da528cf

Attributes

activate_away_mode
true
backup_connection_host
mec.sytes.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-04T14:41:53.527071936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
3259
default_group
Mine
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
9358a53f-433c-42f5-bd3f-14ae4da528cf
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
mec.sytes.net
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
Nanocore family
nanocore

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7ef62831b23949060085a8d2946523cd.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	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101

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 3 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
4632	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
4632	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
4632	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4632	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
Token: SeDebugPrivilege	4632	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 1000	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	99
PID 2112 wrote to memory of 1000	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	99
PID 2112 wrote to memory of 1000	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	99
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101
PID 2112 wrote to memory of 4632	2112	JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nLQmvzsfrCEI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFABB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1000
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe
  "{path}"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\JaffaCakes118_7ef62831b23949060085a8d2946523cd.exe.log

Filesize
594B

MD5
fdb26b3b547022b45cfaeee57eafd566

SHA1
11c6798b8a59233f404014c5e79b3363cd564b37

SHA256
2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

SHA512
44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFABB.tmp

Filesize
1KB

MD5
a59b5f12d97c3d4ae1226576e326a114

SHA1
34a1f4e5b6439189c3c00c0cee967d5f4c6240a8

SHA256
1a289144c7232d115cad2de66b665901e47882032a0e4026a09a72a267b76fd8

SHA512
89121dd80a7f7e4dd6e840fbbb7491a66c7ecf41f757122545ec95c95dd6f8f0a22fb2f1db4f57f68cddb3065df218f679a2ae76bf71400620a1116486f04b1e

Download Submit
memory/2112-3-0x00000000750D2000-0x00000000750D3000-memory.dmp

Filesize
4KB

Download
memory/2112-0-0x00000000750D2000-0x00000000750D3000-memory.dmp

Filesize
4KB

Download
memory/2112-4-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/2112-5-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/2112-2-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/2112-1-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/2112-14-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4632-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4632-13-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4632-12-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4632-16-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4632-17-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4632-18-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads