nanocore | f7f8015efd056bf55fa2fe4562a55c572091506fdc1eb84d1cd05935274cbd41

General

Target

ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
Size

587KB
MD5

ca408fde171ddf4743447c9dd35cb252
SHA1

32eb79d86a3a614170120a04403119110e56da66
SHA256

f7f8015efd056bf55fa2fe4562a55c572091506fdc1eb84d1cd05935274cbd41
SHA512

40504230b65c3a2a2815f74c768d9b2378350967a0c2d63b5b251f8b1c7596eb30d9df76ae903c2b405c33fed90f56061ffc3a1691911bbe9644207d45419ab5
SSDEEP

12288:OpaxROa4fsgJM+wHT+URFh1aTKewgXsuAkztPW8eP0Mr:LgRXwz9RRaTPFXfAQ

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wywtrwbnmhtytrebsgwtfcvzcxgjhyegvbcnmgte.ydns.eu:2486

Mutex

38e550b1-749b-4070-a891-ba3703218cb4

Attributes

activate_away_mode
true
backup_connection_host
wywtrwbnmhtytrebsgwtfcvzcxgjhyegvbcnmgte.ydns.eu
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-12-05T22:55:32.707339436Z
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
2486
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
38e550b1-749b-4070-a891-ba3703218cb4
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\NTFS Manager = "C:\\Program Files (x86)\\NTFS Manager\\ntfsmgr.exe"	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.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	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 956 set thread context of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
File created	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.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	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.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
1772	schtasks.exe
3056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 956 wrote to memory of 4736	956	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	91
PID 4736 wrote to memory of 1772	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	92
PID 4736 wrote to memory of 1772	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	92
PID 4736 wrote to memory of 1772	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	92
PID 4736 wrote to memory of 3056	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	94
PID 4736 wrote to memory of 3056	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	94
PID 4736 wrote to memory of 3056	4736	ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:956
- C:\Users\Admin\AppData\Local\Temp\ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe
  "{path}"
  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:4736
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3E8B.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1772
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NTFS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3EDA.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3056

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\Microsoft\CLR_v2.0_32\UsageLogs\ca408fde171ddf4743447c9dd35cb252_JaffaCakes118.exe.log

Filesize
496B

MD5
cb76b18ebed3a9f05a14aed43d35fba6

SHA1
836a4b4e351846fca08b84149cb734cb59b8c0d6

SHA256
8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

SHA512
7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3E8B.tmp

Filesize
1KB

MD5
8a4364f95fc0662f28a51d974a42697b

SHA1
2a97294e4f799d353fdea38012a9df2a04f53e71

SHA256
1e6fb31073993514ddd4a00f322ea96e3f3995d3945effe9f64dc0d7380014a6

SHA512
c855440ae0680fd541e63b7bf35446387366e5c547f8f59fe7b2903bf72788bcdcb7ccf74866812cbcdb51b4a928f0d62dda77418f65b72b73b18cdc4e76f2de

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3EDA.tmp

Filesize
1KB

MD5
41808f05a9aa523d0ef506d4993f1d6c

SHA1
5a228145decf63ebbbd673c9b7c08a86236a22d4

SHA256
f76bd5da395a725b5998efab9a5d3160657cf2d44a8be83fa24af6ba29acf731

SHA512
7cf71f8fd8dccaa8cf2c724afca3178be8b7a6e0cc6e4b44990e96413bd0dac8248e2bcfa1bb82da05efb6c4b46649722c20ce14cf4a44f1720e18732bd9246e

Download Submit
memory/956-4-0x00000000750E2000-0x00000000750E3000-memory.dmp

Filesize
4KB

Download
memory/956-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

Filesize
4KB

Download
memory/956-5-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/956-3-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/956-9-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/956-2-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/956-1-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/4736-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4736-10-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/4736-11-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/4736-19-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/4736-20-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/4736-21-0x00000000750E0000-0x0000000075691000-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