nanocore | a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 02:53

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General

Target

a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
Size

1.0MB
MD5

b3d29fb2f6ee5fa0ce6e777eed56d420
SHA1

6ebd26c9ae4a12e76699682a99b7e47c591481ff
SHA256

a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161
SHA512

3780cf7a0f339f673735ab847a36abc91aa5b3e1d63c7ab18a29507a0384018f2d0dcd62ebea4beb559d73173f763897517a567a27595743532129e26b8b8956
SSDEEP

24576:ou6J33O0c+JY5UZ+XC0kGso6FauUAGhCtti4n0WY:Cu0c++OCvkGs9FauNBttLXY

Score

10^/10

nanocore collection discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

192.177.111.65:7090

Mutex

3ddebdae-a1f4-41b3-9606-ade5cb2cec4c

Attributes

activate_away_mode
true
backup_connection_host
192.177.111.65
backup_dns_server
192.177.111.65
buffer_size
65535
build_time
2024-09-21T08:21:20.013878636Z
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
7090
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
3ddebdae-a1f4-41b3-9606-ade5cb2cec4c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
192.177.111.65
primary_dns_server
192.177.111.65
request_elevation
false
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

Detected Nirsoft tools 4 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/708-37-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/708-39-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/708-40-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/708-44-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft

NirSoft MailPassView 4 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/708-37-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/708-39-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/708-40-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/708-44-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

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 Monitor = "C:\\Program Files (x86)\\SCSI Monitor\\scsimon.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 2124	3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe	85
PID 2124 set thread context of 708	2124	RegSvcs.exe	105
PID 2124 set thread context of 4456	2124	RegSvcs.exe	107

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Monitor\scsimon.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SCSI Monitor\scsimon.exe	RegSvcs.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
3940	schtasks.exe
1624	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2124	RegSvcs.exe
2124	RegSvcs.exe
2124	RegSvcs.exe
2124	RegSvcs.exe
2124	RegSvcs.exe
2124	RegSvcs.exe
4456	vbc.exe
4456	vbc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2124	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 2124	3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe	85
PID 3656 wrote to memory of 2124	3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe	85
PID 3656 wrote to memory of 2124	3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe	85
PID 3656 wrote to memory of 2124	3656	a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe	85
PID 2124 wrote to memory of 3940	2124	RegSvcs.exe	86
PID 2124 wrote to memory of 3940	2124	RegSvcs.exe	86
PID 2124 wrote to memory of 3940	2124	RegSvcs.exe	86
PID 2124 wrote to memory of 1624	2124	RegSvcs.exe	88
PID 2124 wrote to memory of 1624	2124	RegSvcs.exe	88
PID 2124 wrote to memory of 1624	2124	RegSvcs.exe	88
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 708	2124	RegSvcs.exe	105
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107
PID 2124 wrote to memory of 4456	2124	RegSvcs.exe	107

C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
"C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - 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:2124
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAE03.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3940
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAE71.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1624
- - \??\c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
    "c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\gdiq2nuk.fhl"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:708
- - \??\c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
    "c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\y3jge3z5.qfk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\autA807.tmp

Filesize
203KB

MD5
c7ffd1e38d28f553bea2faf8df2dadfe

SHA1
689336226ca2a224d58df97cad0150eef09d7296

SHA256
710cc40bf10d7a602e604243b9d22b00e443bac3ff2e6f767ef56258f92fed30

SHA512
2a47ebb8927b84c94075ccacb8afed7b27d37a3e4d737c014a3a3cce502e0b549c44950b13605ccccaf6e50c35df608bdaf3fa336945a7bd0f40bc8cb0564a03

Download Submit
C:\Users\Admin\AppData\Local\Temp\gdiq2nuk.fhl

Filesize
523B

MD5
69b2a2e17e78d24abee9f1de2f04811a

SHA1
d19c109704e83876ab3527457f9418a7d053aa33

SHA256
1b1491f21e64681f8fdc27b2265e2274fb7813eecb6ad8b446d2e431f6300edd

SHA512
eb7269979bc4187520636fe3d7b3089f2c7c02e81c4ce2a738ade680f72c61c67fe9577eeaa09d3ca93f34b60be8c434d2cfbfed6566e783f6611279f056150f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAE03.tmp

Filesize
1KB

MD5
40b11ef601fb28f9b2e69d36857bf2ec

SHA1
b6454020ad2ceed193f4792b77001d0bd741b370

SHA256
c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

SHA512
e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAE71.tmp

Filesize
1KB

MD5
2862e61d09852ea2886c036af0465051

SHA1
45e30b14543868213f7f1cba0a1e0cc840fb2cd2

SHA256
d4ba6219d0aff5a36d129a8475cf35b00043d205f751f63ddd56a5c7d4a03ff3

SHA512
33dfd9d12adaa19dd3d4dd7013930e233dd3ff1d114e1e86e50d20ffa848a27582eebdffc09ab974b8de86316c01da6f6254f349992ad507d0f8b13cf0e36579

Download Submit
C:\Users\Admin\AppData\Local\Temp\y3jge3z5.qfk

Filesize
3KB

MD5
02524418240369b25b988e9884cd1c54

SHA1
42a33322d952edf6d8431d4cd788bbc863d2b890

SHA256
80b2a0874c2f734dfe1196d7ae2a7bc6ccb30df2d9281513ac33edc529a71a37

SHA512
7c5bbe911f7f0b072d6fdb89ea5759655c2b5cf9ebfddff8f2f67f956141b8ed3697ab0504f60c3992849afbbc79434043a6c04d7cf6ddd958e23354fd3a698f

Download Submit
memory/708-39-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/708-37-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/708-42-0x0000000000420000-0x00000000004E9000-memory.dmp

Filesize
804KB

Download
memory/708-44-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/708-40-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2124-15-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/2124-16-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/2124-33-0x00000000740E2000-0x00000000740E3000-memory.dmp

Filesize
4KB

Download
memory/2124-14-0x00000000740E2000-0x00000000740E3000-memory.dmp

Filesize
4KB

Download
memory/2124-34-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/2124-24-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/2124-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2124-35-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/2124-36-0x00000000740E0000-0x0000000074691000-memory.dmp

Filesize
5.7MB

Download
memory/3656-12-0x00000000040C0000-0x00000000040C4000-memory.dmp

Filesize
16KB

Download
memory/4456-46-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-48-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-49-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download