nanocore | 152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685

General

Target

152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe
Size

3.5MB
MD5

72541dff5041b2d243e0502ecb452ef1
SHA1

8afb4d29dee980bedefb058453ed11e1c151f938
SHA256

152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685
SHA512

f4877723eb06c98b0ede4868331cc0a64a09e7c02cebad044f3b6e5d1e741d45393ee7d1937fa031e26c463dc1370037ecb0bbe3eb42fd7dda8868c844bfd7d0
SSDEEP

49152:KOb699GhOeeYrHhxNg0Dobuh9CYW/jgFdfUH8SIP1wJ5+BPtk6S:q9vYrdnw8SIKJYBP

Score

10^/10

nanocore collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

arkseven7002.ddns.net:7727

Mutex

10a66da6-234d-4e15-acda-574830a08fca

Attributes

activate_away_mode
true
backup_connection_host
arkseven7002.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-04-18T01:03:25.467183836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
7727
default_group
BLESSED BOTS
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
10a66da6-234d-4e15-acda-574830a08fca
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
arkseven7002.ddns.net
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

NirSoft MailPassView 4 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/2656-44-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2656-42-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2656-45-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2656-47-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

Nirsoft 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2656-44-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2656-42-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2656-45-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2656-47-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\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

Processes:

jsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Monitor = "C:\\Program Files (x86)\\SMTP Monitor\\smtpmon.exe"	jsc.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exejsc.exe

description	pid	process	target process
PID 2064 set thread context of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2520 set thread context of 2656	2520	jsc.exe	vbc.exe
PID 2520 set thread context of 2372	2520	jsc.exe	vbc.exe

Drops file in Program Files directory 2 IoCs

Processes:

jsc.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Monitor\smtpmon.exe	jsc.exe
File opened for modification	C:\Program Files (x86)\SMTP Monitor\smtpmon.exe	jsc.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

jsc.exevbc.exe

pid process

2520 jsc.exe
2520 jsc.exe
2520 jsc.exe
2520 jsc.exe
2520 jsc.exe
2520 jsc.exe
2372 vbc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

jsc.exe

pid process

2520 jsc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

jsc.exe

description pid process

Token: SeDebugPrivilege 2520 jsc.exe

pid	process
2520	jsc.exe
2520	jsc.exe
2520	jsc.exe
2520	jsc.exe
2520	jsc.exe
2520	jsc.exe
2372	vbc.exe

pid	process
2520	jsc.exe

description	pid	process
Token: SeDebugPrivilege	2520	jsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exejsc.exe

description	pid	process	target process
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 3068	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	regsvcs.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2064 wrote to memory of 2520	2064	152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe	jsc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2656	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe
PID 2520 wrote to memory of 2372	2520	jsc.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe
"C:\Users\Admin\AppData\Local\Temp\152831911e38d9e20c6c82b22cd65258fab41c3c1017d2127854b91c8331a685.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2064

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
PID:3068

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520

\??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
"c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\lk32o0q0.nxv"
3⤵
- Accesses Microsoft Outlook accounts
PID:2656

\??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
"c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\erlqbewj.bb4"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:2372

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

1

T1064

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\erlqbewj.bb4
Filesize
926B

MD5
919e671c3d5959a91ef2d4c377d2b2ff

SHA1
b1202b19512bbd390d3d5164792501c87bb42c41

SHA256
d2e079df7cf6388315368ba79bf099ad2ff5428af51bf5abf2d99a2d7c5eb651

SHA512
f3298256372beab8efe81b2e08d3b3869281f625de1ee13189c6b95eb2134d223df6f64cc9e490dd6b52a53aa936adc17bd5dfe4e50ee0fe420f3ebae276381c

Download Submit
C:\Users\Admin\AppData\Local\Temp\lk32o0q0.nxv
Filesize
523B

MD5
69b2a2e17e78d24abee9f1de2f04811a

SHA1
d19c109704e83876ab3527457f9418a7d053aa33

SHA256
1b1491f21e64681f8fdc27b2265e2274fb7813eecb6ad8b446d2e431f6300edd

SHA512
eb7269979bc4187520636fe3d7b3089f2c7c02e81c4ce2a738ade680f72c61c67fe9577eeaa09d3ca93f34b60be8c434d2cfbfed6566e783f6611279f056150f

Download Submit
memory/2372-68-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-62-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-59-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2372-63-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-60-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2372-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-29-0x0000000073E70000-0x000000007455E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-15-0x00000000005E0000-0x00000000005F2000-memory.dmp

Filesize
72KB

Download
memory/2520-21-0x0000000002050000-0x0000000002064000-memory.dmp

Filesize
80KB

Download
memory/2520-20-0x0000000001FC0000-0x0000000001FCC000-memory.dmp

Filesize
48KB

Download
memory/2520-22-0x0000000002060000-0x0000000002070000-memory.dmp

Filesize
64KB

Download
memory/2520-23-0x0000000002070000-0x0000000002084000-memory.dmp

Filesize
80KB

Download
memory/2520-24-0x0000000002080000-0x000000000208E000-memory.dmp

Filesize
56KB

Download
memory/2520-25-0x0000000004330000-0x000000000435E000-memory.dmp

Filesize
184KB

Download
memory/2520-26-0x00000000020A0000-0x00000000020B4000-memory.dmp

Filesize
80KB

Download
memory/2520-28-0x0000000073E7E000-0x0000000073E7F000-memory.dmp

Filesize
4KB

Download
memory/2520-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2520-30-0x0000000073E70000-0x000000007455E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2520-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2520-5-0x0000000073E7E000-0x0000000073E7F000-memory.dmp

Filesize
4KB

Download
memory/2520-6-0x0000000073E70000-0x000000007455E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-9-0x0000000000290000-0x000000000029A000-memory.dmp

Filesize
40KB

Download
memory/2520-10-0x00000000003A0000-0x00000000003BE000-memory.dmp

Filesize
120KB

Download
memory/2520-11-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/2520-12-0x0000000073E70000-0x000000007455E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-18-0x0000000001FA0000-0x0000000001FB2000-memory.dmp

Filesize
72KB

Download
memory/2520-16-0x0000000000970000-0x000000000098A000-memory.dmp

Filesize
104KB

Download
memory/2520-19-0x0000000001FB0000-0x0000000001FBE000-memory.dmp

Filesize
56KB

Download
memory/2520-17-0x0000000001F80000-0x0000000001F8E000-memory.dmp

Filesize
56KB

Download
memory/2656-47-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-45-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-35-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-37-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-39-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-42-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-44-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-33-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2656-31-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads