nanocore | 26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7

Analysis

max time kernel
136s
max time network
153s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
30/06/2024, 01:05

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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

Detects executables packed with SmartAssembly 4 IoCs

resource	yara_rule
behavioral1/memory/2420-1-0x0000000000850000-0x00000000008A0000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly
behavioral1/files/0x002b00000001454e-36.dat	INDICATOR_EXE_Packed_SmartAssembly
behavioral1/memory/2032-38-0x00000000010A0000-0x00000000010F0000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly
behavioral1/memory/1964-65-0x0000000000220000-0x0000000000270000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Executes dropped EXE 3 IoCs

pid	Process
2032	DDfiles.exe
2168	DDfiles.exe
1964	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 4 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2032 set thread context of 648	2032	DDfiles.exe	38
PID 2168 set thread context of 2508	2168	DDfiles.exe	49
PID 1964 set thread context of 996	1964	DDfiles.exe	58

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
612	schtasks.exe
2156	schtasks.exe
2628	schtasks.exe
1920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3020	RegAsm.exe
3020	RegAsm.exe
3020	RegAsm.exe
3020	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3020	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	RegAsm.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 3020	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	28
PID 2420 wrote to memory of 1148	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	29
PID 2420 wrote to memory of 1148	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	29
PID 2420 wrote to memory of 1148	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	29
PID 2420 wrote to memory of 1148	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	29
PID 2420 wrote to memory of 1440	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	30
PID 2420 wrote to memory of 1440	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	30
PID 2420 wrote to memory of 1440	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	30
PID 2420 wrote to memory of 1440	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	30
PID 2420 wrote to memory of 2616	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	32
PID 2420 wrote to memory of 2616	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	32
PID 2420 wrote to memory of 2616	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	32
PID 2420 wrote to memory of 2616	2420	26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7.exe	32
PID 1440 wrote to memory of 2628	1440	cmd.exe	35
PID 1440 wrote to memory of 2628	1440	cmd.exe	35
PID 1440 wrote to memory of 2628	1440	cmd.exe	35
PID 1440 wrote to memory of 2628	1440	cmd.exe	35
PID 2308 wrote to memory of 2032	2308	taskeng.exe	37
PID 2308 wrote to memory of 2032	2308	taskeng.exe	37
PID 2308 wrote to memory of 2032	2308	taskeng.exe	37
PID 2308 wrote to memory of 2032	2308	taskeng.exe	37
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 648	2032	DDfiles.exe	38
PID 2032 wrote to memory of 2816	2032	DDfiles.exe	39
PID 2032 wrote to memory of 2816	2032	DDfiles.exe	39
PID 2032 wrote to memory of 2816	2032	DDfiles.exe	39
PID 2032 wrote to memory of 2816	2032	DDfiles.exe	39
PID 2032 wrote to memory of 2840	2032	DDfiles.exe	40
PID 2032 wrote to memory of 2840	2032	DDfiles.exe	40
PID 2032 wrote to memory of 2840	2032	DDfiles.exe	40
PID 2032 wrote to memory of 2840	2032	DDfiles.exe	40
PID 2032 wrote to memory of 2820	2032	DDfiles.exe	41
PID 2032 wrote to memory of 2820	2032	DDfiles.exe	41
PID 2032 wrote to memory of 2820	2032	DDfiles.exe	41
PID 2032 wrote to memory of 2820	2032	DDfiles.exe	41
PID 2840 wrote to memory of 1920	2840	cmd.exe	45
PID 2840 wrote to memory of 1920	2840	cmd.exe	45
PID 2840 wrote to memory of 1920	2840	cmd.exe	45
PID 2840 wrote to memory of 1920	2840	cmd.exe	45
PID 2308 wrote to memory of 2168	2308	taskeng.exe	48
PID 2308 wrote to memory of 2168	2308	taskeng.exe	48
PID 2308 wrote to memory of 2168	2308	taskeng.exe	48
PID 2308 wrote to memory of 2168	2308	taskeng.exe	48

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:2420
- 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:3020
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
  2⤵
  PID:1148
- 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:1440
- - 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:2628
- 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:2616

C:\Windows\system32\taskeng.exe
taskeng.exe {78507145-3419-41CB-91AC-98B8F26A667D} S-1-5-21-39690363-730359138-1046745555-1000:EILATWEW\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:648
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
    3⤵
    PID:2816
- - 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
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2840
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:1920
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
    3⤵
    PID:2820
- C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:2168
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2508
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
    3⤵
    PID:2252
- - 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
    3⤵
    PID:2256
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:612
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
    3⤵
    PID:2192
- C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1964
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:996
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\DDfiles"
    3⤵
    PID:1932
- - 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
    3⤵
    PID:1428
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe'" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2156
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe" "C:\Users\Admin\AppData\Roaming\DDfiles\DDfiles.exe"
    3⤵
    PID:2428

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

Replay Monitor

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Downloads

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

Filesize
296KB

MD5
ec03c8da575fa5ee4745506b340968e6

SHA1
357374aa9b28d6571ebcf3b535b3cd8fe85eebba

SHA256
26321ed18abb4d44668e157dcb9a123debe3b7477d95055d20e5f5d997bf60d7

SHA512
2d01fa27ef375f77db7e3a896877db902ea52578aaa13aaec2aef3ce8a0199b1de56ca70602bac24f4fd2278ed5835e2c373c0626a05e95929deb93abb94137a

Download Submit
memory/1964-65-0x0000000000220000-0x0000000000270000-memory.dmp

Filesize
320KB

Download
memory/2032-38-0x00000000010A0000-0x00000000010F0000-memory.dmp

Filesize
320KB

Download
memory/2420-14-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-1-0x0000000000850000-0x00000000008A0000-memory.dmp

Filesize
320KB

Download
memory/2420-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/3020-20-0x00000000004B0000-0x00000000004CE000-memory.dmp

Filesize
120KB

Download
memory/3020-26-0x0000000000BE0000-0x0000000000BEE000-memory.dmp

Filesize
56KB

Download
memory/3020-3-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-11-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-18-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/3020-19-0x0000000000770000-0x000000000077C000-memory.dmp

Filesize
48KB

Download
memory/3020-4-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-21-0x0000000000A70000-0x0000000000A7A000-memory.dmp

Filesize
40KB

Download
memory/3020-24-0x0000000000A80000-0x0000000000A8C000-memory.dmp

Filesize
48KB

Download
memory/3020-25-0x0000000000BC0000-0x0000000000BDA000-memory.dmp

Filesize
104KB

Download
memory/3020-13-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-30-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/3020-29-0x0000000000DB0000-0x0000000000DBE000-memory.dmp

Filesize
56KB

Download
memory/3020-31-0x0000000000DD0000-0x0000000000DE4000-memory.dmp

Filesize
80KB

Download
memory/3020-28-0x0000000000DA0000-0x0000000000DAC000-memory.dmp

Filesize
48KB

Download
memory/3020-27-0x0000000000D90000-0x0000000000DA2000-memory.dmp

Filesize
72KB

Download
memory/3020-33-0x0000000000FD0000-0x0000000000FFE000-memory.dmp

Filesize
184KB

Download
memory/3020-32-0x0000000000EF0000-0x0000000000EFE000-memory.dmp

Filesize
56KB

Download
memory/3020-34-0x0000000000F10000-0x0000000000F24000-memory.dmp

Filesize
80KB

Download
memory/3020-5-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-6-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3020-9-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download