nanocore | 1acdc78e037fc8506cc2fb9b9031c33cd23d33a3feffff24d24d80157d488206

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
26/02/2024, 06:59

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General

Target
a5b7a2266d4da6fd22e5d719a2abf9ab.exe
Size 910KB
Sample240226-hsj67sfe88
SHA256 1acdc78e037fc8506cc2fb9b9031c33cd23d33a3feffff24d24d80157d488206
MD5 a5b7a2266d4da6fd22e5d719a2abf9ab
SHA1 495c8ce78078160a83491e5add68c53985b961e9
SHA512 5491194ae604ffa14f8e67e78eebb06bcb4d9ea484050881057dd9f3cb00f7ccd390ea1e03afecca7a6e4ae7eb7073217c11e3933eac402ce11b34563651115e
SSDEEP 12288:XAMtUFWxJFsjMF5KhfD/jGjNuBMyB4aZrGxQWxvzWhSk/3dN6t2NjF5:XAzMnefTmv+Z6OWBzkNN6MNjj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

tunneddd.ydns.eu:4982

Mutex

433a9cb9-e8c9-4c81-84a0-673692642d97

Attributes

activate_away_mode
true
backup_connection_host
tunneddd.ydns.eu
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-05-15T14:19:22.456096436Z
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
4982
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
433a9cb9-e8c9-4c81-84a0-673692642d97
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
tunneddd.ydns.eu
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

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\SCSI Manager = "C:\\Program Files (x86)\\SCSI Manager\\scsimgr.exe"	a5b7a2266d4da6fd22e5d719a2abf9ab.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	a5b7a2266d4da6fd22e5d719a2abf9ab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Manager\scsimgr.exe	a5b7a2266d4da6fd22e5d719a2abf9ab.exe
File opened for modification	C:\Program Files (x86)\SCSI Manager\scsimgr.exe	a5b7a2266d4da6fd22e5d719a2abf9ab.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4184	schtasks.exe
2980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe
1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe
1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 2464 wrote to memory of 1032	2464	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	93
PID 1032 wrote to memory of 4184	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	95
PID 1032 wrote to memory of 4184	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	95
PID 1032 wrote to memory of 4184	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	95
PID 1032 wrote to memory of 2980	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	96
PID 1032 wrote to memory of 2980	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	96
PID 1032 wrote to memory of 2980	1032	a5b7a2266d4da6fd22e5d719a2abf9ab.exe	96

C:\Users\Admin\AppData\Local\Temp\a5b7a2266d4da6fd22e5d719a2abf9ab.exe
"C:\Users\Admin\AppData\Local\Temp\a5b7a2266d4da6fd22e5d719a2abf9ab.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Local\Temp\a5b7a2266d4da6fd22e5d719a2abf9ab.exe
  "C:\Users\Admin\AppData\Local\Temp\a5b7a2266d4da6fd22e5d719a2abf9ab.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp148D.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4184
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp14CC.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

a5b7a2266d4da6fd22e5d719a2abf9ab.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\a5b7a2266d4da6fd22e5d719a2abf9ab.exe.log
Size 496B
SHA256 8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349
MD5 cb76b18ebed3a9f05a14aed43d35fba6
SHA1 836a4b4e351846fca08b84149cb734cb59b8c0d6
SHA512 7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c
MD5 SHA1 SHA512

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tmp148D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp148D.tmp
Size 1KB
SHA256 7d45b381912126756d0e9e1f826eec8da25bf3306cec5e128ba8aa474a988a73
MD5 a3da92d830221844e122ee21b2238ae2
SHA1 8bbe786b8017496999457407353a308f877f4aa3
SHA512 0b13c93ad75272b17de4be691e59ad004bc17a62ef8348d6cabe76de5a798373f87fc6d1bd8896109cc00b56cad0efc84de01c238a96500c702b17064a355fd2
MD5 SHA1 SHA512

Submit Download

tmp14CC.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp14CC.tmp
Size 1KB
SHA256 fc83a4838c8f389314d453d7803a77d31926592ee8e8c1b8dfca71f8f68518c8
MD5 f852c93e083d04e21605d65da8fc6b36
SHA1 cd0ee83b34e18e41a4f7f75c51285a81e502e966
SHA512 bcb3b0767f46c5882d812159fed9475bf0e88e62a986a14761cebb60b7ce2b71f7caca2c3fafaf9d03556c93d6fe37fa8053215618734a5121a84e08bfd6e250
MD5 SHA1 SHA512

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memory/1032-9-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/1032-19-0x0000000001990000-0x00000000019A0000-memory.dmp

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memory/1032-5-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-22-0x0000000001990000-0x00000000019A0000-memory.dmp

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memory/1032-21-0x0000000001990000-0x00000000019A0000-memory.dmp

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memory/1032-20-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/1032-10-0x0000000001990000-0x00000000019A0000-memory.dmp

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memory/1032-11-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/2464-2-0x0000000001630000-0x0000000001640000-memory.dmp

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memory/2464-1-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/2464-4-0x0000000001630000-0x0000000001640000-memory.dmp

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memory/2464-0-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/2464-8-0x0000000075560000-0x0000000075B11000-memory.dmp

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memory/2464-3-0x0000000075560000-0x0000000075B11000-memory.dmp

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