nanocore | 6e9684d4b9c12a050ce73e4da9204e9b3db3cadca1ce03b8b4438dd19d36bd1d

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 04:02

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General

Target

26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe
Size

296KB
MD5

ec03c8da575fa5ee4745506b340968e6
SHA1

357374aa9b28d6571ebcf3b535b3cd8fe85eebba
SHA256

26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7
SHA512

2d01fa27ef375f77db7e3a896877db902ea52578aaa13aaec2aef3ce8a0199b1de56ca70602bac24f4fd2278ed5835e2c373c0626a05e95929deb93abb94137a
SSDEEP

6144:ou+rdxKERB7nPpuU8Dh1tUS/fqLaiU6xVB3Y8TTp6VmSyp7jk:gdxK8B7nAU87tabNNTd6VnypU

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

munan.duckdns.org:3637

munabc.duckdns.org:3637

Mutex

4d5a1bc9-ba60-4ed4-85d1-96a1836c92b0

Attributes

activate_away_mode
true
backup_connection_host
munabc.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-09-24T00:04:44.813706136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3637
default_group
MUNA
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
4d5a1bc9-ba60-4ed4-85d1-96a1836c92b0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
munan.duckdns.org
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

Executes dropped EXE 2 IoCs

pid	Process
5024	DDfiles.exe
180	DDfiles.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 3 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 5024 set thread context of 972	5024	DDfiles.exe	97
PID 180 set thread context of 728	180	DDfiles.exe	106

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3276	schtasks.exe
4672	schtasks.exe
3008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1072	RegAsm.exe
1072	RegAsm.exe
1072	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1072	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	RegAsm.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1072	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	80
PID 2516 wrote to memory of 1412	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	81
PID 2516 wrote to memory of 1412	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	81
PID 2516 wrote to memory of 1412	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	81
PID 2516 wrote to memory of 3396	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	82
PID 2516 wrote to memory of 3396	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	82
PID 2516 wrote to memory of 3396	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	82
PID 2516 wrote to memory of 3308	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	83
PID 2516 wrote to memory of 3308	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	83
PID 2516 wrote to memory of 3308	2516	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	83
PID 3396 wrote to memory of 3276	3396	cmd.exe	87
PID 3396 wrote to memory of 3276	3396	cmd.exe	87
PID 3396 wrote to memory of 3276	3396	cmd.exe	87
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 972	5024	DDfiles.exe	97
PID 5024 wrote to memory of 3164	5024	DDfiles.exe	98
PID 5024 wrote to memory of 3164	5024	DDfiles.exe	98
PID 5024 wrote to memory of 3164	5024	DDfiles.exe	98
PID 5024 wrote to memory of 4536	5024	DDfiles.exe	99
PID 5024 wrote to memory of 4536	5024	DDfiles.exe	99
PID 5024 wrote to memory of 4536	5024	DDfiles.exe	99
PID 5024 wrote to memory of 3572	5024	DDfiles.exe	100
PID 5024 wrote to memory of 3572	5024	DDfiles.exe	100
PID 5024 wrote to memory of 3572	5024	DDfiles.exe	100
PID 4536 wrote to memory of 4672	4536	cmd.exe	104
PID 4536 wrote to memory of 4672	4536	cmd.exe	104
PID 4536 wrote to memory of 4672	4536	cmd.exe	104
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 728	180	DDfiles.exe	106
PID 180 wrote to memory of 2136	180	DDfiles.exe	107
PID 180 wrote to memory of 2136	180	DDfiles.exe	107
PID 180 wrote to memory of 2136	180	DDfiles.exe	107
PID 180 wrote to memory of 320	180	DDfiles.exe	108
PID 180 wrote to memory of 320	180	DDfiles.exe	108
PID 180 wrote to memory of 320	180	DDfiles.exe	108
PID 180 wrote to memory of 1336	180	DDfiles.exe	110
PID 180 wrote to memory of 1336	180	DDfiles.exe	110
PID 180 wrote to memory of 1336	180	DDfiles.exe	110
PID 320 wrote to memory of 3008	320	cmd.exe	113
PID 320 wrote to memory of 3008	320	cmd.exe	113
PID 320 wrote to memory of 3008	320	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe
"C:\Users\Admin\AppData\Local\Temp\26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1072
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
  2⤵
  PID:1412
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3396
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3276
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
  2⤵
  PID:3308

C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:972
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
  2⤵
  PID:3164
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4536
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4672
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
  2⤵
  PID:3572

C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:180
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:728
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
  2⤵
  PID:2136
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:320
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3008
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
  2⤵
  PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\DDfiles.exe.log

Filesize
520B

MD5
03febbff58da1d3318c31657d89c8542

SHA1
c9e017bd9d0a4fe533795b227c855935d86c2092

SHA256
5164770a37b199a79ccd23b399bb3309228973d9f74c589bc2623dc613b37ac4

SHA512
3750c372bbca1892e9c1b34681d592c693e725a8b149c3d6938079cd467628cec42c4293b0d886b57a786abf45f5e7229247b3445001774e3e793ff5a3accfa3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.log

Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe

Filesize
296KB

MD5
ec03c8da575fa5ee4745506b340968e6

SHA1
357374aa9b28d6571ebcf3b535b3cd8fe85eebba

SHA256
26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7

SHA512
2d01fa27ef375f77db7e3a896877db902ea52578aaa13aaec2aef3ce8a0199b1de56ca70602bac24f4fd2278ed5835e2c373c0626a05e95929deb93abb94137a

Download Submit
memory/1072-16-0x00000000053C0000-0x00000000053DE000-memory.dmp

Filesize
120KB

Download
memory/1072-15-0x00000000051E0000-0x00000000051EC000-memory.dmp

Filesize
48KB

Download
memory/1072-9-0x00000000051F0000-0x000000000528C000-memory.dmp

Filesize
624KB

Download
memory/1072-12-0x00000000050A0000-0x00000000050AA000-memory.dmp

Filesize
40KB

Download
memory/1072-8-0x00000000050B0000-0x0000000005142000-memory.dmp

Filesize
584KB

Download
memory/1072-18-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/1072-17-0x0000000005E70000-0x0000000005E7A000-memory.dmp

Filesize
40KB

Download
memory/1072-6-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/1072-14-0x00000000051D0000-0x00000000051DA000-memory.dmp

Filesize
40KB

Download
memory/1072-4-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2516-7-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/2516-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2516-2-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/2516-3-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/2516-1-0x0000000000FC0000-0x0000000001010000-memory.dmp

Filesize
320KB

Download