nanocore | d0c4b59ecd880d33110f3b73ca0c46c8cfe0b5e92fdf034cd0c53ddb7cb3db47

General

Target

84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
Size

1.1MB
MD5

84619f80f9e8a5854d681bb195a24baf
SHA1

bfb3a24e511609053a80e800b388d2084df0f6b7
SHA256

d0c4b59ecd880d33110f3b73ca0c46c8cfe0b5e92fdf034cd0c53ddb7cb3db47
SHA512

0bd61d86a081f94d023cd86a6722c8a921b5805e58cf0a7a22db629970db973488de1f09a41c27fc420bbad251070d53c1308bba72e5b0740df9621b7d59fdc8
SSDEEP

24576:YoB+JcIfmnDJ5yGGx+P15opE+1LI4EuqoEJnVPHuW1Xj1Pfc8iJgc/PmdXzJEAwv:i6Xz1uxHDPIvy6JNvO

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ceo2020.ddns.net:6779

Mutex

01cac9dd-8ae5-4f85-827f-ec9be58bad8e

Attributes

activate_away_mode
true
backup_connection_host
ceo2020.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-07-05T23:38:03.632879036Z
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
6779
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
01cac9dd-8ae5-4f85-827f-ec9be58bad8e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Subsystem = "C:\\Program Files (x86)\\PCI Subsystem\\pciss.exe"	RegAsm.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4472 set thread context of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\PCI Subsystem\pciss.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\PCI Subsystem\pciss.exe	RegAsm.exe

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2928	schtasks.exe
4068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
2968	RegAsm.exe
2968	RegAsm.exe
2968	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2968	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
Token: SeDebugPrivilege	2968	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 2968	4472	84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe	85
PID 2968 wrote to memory of 4068	2968	RegAsm.exe	88
PID 2968 wrote to memory of 4068	2968	RegAsm.exe	88
PID 2968 wrote to memory of 4068	2968	RegAsm.exe	88
PID 2968 wrote to memory of 2928	2968	RegAsm.exe	90
PID 2968 wrote to memory of 2928	2968	RegAsm.exe	90
PID 2968 wrote to memory of 2928	2968	RegAsm.exe	90

C:\Users\Admin\AppData\Local\Temp\84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\84619f80f9e8a5854d681bb195a24baf_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp90A7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4068
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9135.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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\Temp\tmp90A7.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9135.tmp

Filesize
1KB

MD5
09063e7cc0d66a9aed53f2e2d2409103

SHA1
96f8fa15b5a3b2646f6691770a158c69ea7405a4

SHA256
369b159ef60c988373a3c85e0b10b5ff2178504465f11965ab0d66f14124f9a1

SHA512
c460a3cab70270c5cefe0464df6ddb9d50bb58ac9c49c7e62c9a55cc6bc30b6411cbc28ae418dd91b1ba1190f8394ccd937452ae70d7062740207d2ffc68e2ec

Download Submit
memory/2968-11-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/2968-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2968-9-0x0000000075012000-0x0000000075013000-memory.dmp

Filesize
4KB

Download
memory/2968-10-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/2968-19-0x0000000075012000-0x0000000075013000-memory.dmp

Filesize
4KB

Download
memory/2968-20-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/2968-21-0x0000000075010000-0x00000000755C1000-memory.dmp

Filesize
5.7MB

Download
memory/4472-3-0x0000000002E60000-0x0000000002E6C000-memory.dmp

Filesize
48KB

Download
memory/4472-6-0x00000000054E0000-0x000000000557C000-memory.dmp

Filesize
624KB

Download
memory/4472-5-0x0000000005400000-0x0000000005438000-memory.dmp

Filesize
224KB

Download
memory/4472-0-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

Filesize
4KB

Download
memory/4472-2-0x00000000053C0000-0x0000000005404000-memory.dmp

Filesize
272KB

Download
memory/4472-1-0x0000000000A40000-0x0000000000AEC000-memory.dmp

Filesize
688KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads