nanocore | 1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66

Analysis

max time kernel
146s
max time network
149s
platform
windows10_x64
resource
win10v200722
submitted
27/08/2020, 08:57

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General

Target
RFQ.exe
Size 742KB
Sample200827-pyg5dwe8ne
SHA256 1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66
MD5 d46d72231787f586ec24ebe1b1b7d697
SHA1 94d87ea7c207ad56822174cb1c3a294aebc3ecbb
SHA512 630731e168dd8974930ea41ed1d13c5ae8a3c741687db59c3dff1f60f08fcecaf1ed2ae61d74f2b96cef25d41ab4db4db0231ab448208195263b7f4b764691a9
MD5 SHA1 SHA512

Score

10^/10

keylogger trojan stealer spyware nanocore persistence

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

185.244.30.6:1985

Mutex

dc81dd5d-6ff2-412e-be45-cfb05c2c4f32

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-06-06T00:19:31.102460536Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
1985
default_group
BAT
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
dc81dd5d-6ff2-412e-be45-cfb05c2c4f32
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.244.30.6
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Service = "C:\\Program Files (x86)\\IMAP Service\\imapsv.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3948 set thread context of 3888	3948	RFQ.exe	75
PID 3888 set thread context of 3184	3888	RegSvcs.exe	80
PID 3888 set thread context of 3820	3888	RegSvcs.exe	81

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\IMAP Service\imapsv.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\IMAP Service\imapsv.exe	RegSvcs.exe

Creates scheduled task(s) 1 TTPs 3 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
3900	schtasks.exe
4004	schtasks.exe
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3948	RFQ.exe
3948	RFQ.exe
3948	RFQ.exe
3888	RegSvcs.exe
3888	RegSvcs.exe
3888	RegSvcs.exe
3888	RegSvcs.exe
3888	RegSvcs.exe
3888	RegSvcs.exe
3820	vbc.exe
3820	vbc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3888	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3948	RFQ.exe
Token: SeDebugPrivilege	3888	RegSvcs.exe
Token: SeDebugPrivilege	3888	RegSvcs.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 3900	3948	RFQ.exe	72
PID 3948 wrote to memory of 3900	3948	RFQ.exe	72
PID 3948 wrote to memory of 3900	3948	RFQ.exe	72
PID 3948 wrote to memory of 3908	3948	RFQ.exe	74
PID 3948 wrote to memory of 3908	3948	RFQ.exe	74
PID 3948 wrote to memory of 3908	3948	RFQ.exe	74
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3948 wrote to memory of 3888	3948	RFQ.exe	75
PID 3888 wrote to memory of 4004	3888	RegSvcs.exe	76
PID 3888 wrote to memory of 4004	3888	RegSvcs.exe	76
PID 3888 wrote to memory of 4004	3888	RegSvcs.exe	76
PID 3888 wrote to memory of 3052	3888	RegSvcs.exe	78
PID 3888 wrote to memory of 3052	3888	RegSvcs.exe	78
PID 3888 wrote to memory of 3052	3888	RegSvcs.exe	78
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3184	3888	RegSvcs.exe	80
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81
PID 3888 wrote to memory of 3820	3888	RegSvcs.exe	81

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZZkGyFbArwadUg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7C4A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3900
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3908
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:3888
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp867C.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4004
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86CB.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3052
- - \??\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\lzwocedw.kbt"
    3⤵
    PID:3184
- - \??\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\jbmyqok3.0mg"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Scripting

T1064

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3184-44-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3184-42-0x0000000000400000-0x000000000041B000-memory.dmp

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memory/3820-48-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3820-46-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3888-37-0x0000000006110000-0x000000000611F000-memory.dmp

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memory/3888-34-0x00000000060E0000-0x00000000060E6000-memory.dmp

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memory/3888-15-0x0000000073490000-0x0000000073B7E000-memory.dmp

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memory/3888-41-0x0000000006350000-0x0000000006351000-memory.dmp

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memory/3888-13-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3888-40-0x0000000006180000-0x000000000618F000-memory.dmp

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memory/3888-39-0x0000000006140000-0x0000000006169000-memory.dmp

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memory/3888-26-0x00000000049F0000-0x00000000049F5000-memory.dmp

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memory/3888-27-0x0000000004E50000-0x0000000004E69000-memory.dmp

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memory/3888-28-0x0000000004F10000-0x0000000004F13000-memory.dmp

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memory/3888-29-0x0000000005B50000-0x0000000005B5D000-memory.dmp

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memory/3888-30-0x0000000005B60000-0x0000000005B75000-memory.dmp

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memory/3888-31-0x00000000060A0000-0x00000000060A6000-memory.dmp

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memory/3888-32-0x00000000060C0000-0x00000000060CC000-memory.dmp

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memory/3888-33-0x00000000060D0000-0x00000000060D7000-memory.dmp

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memory/3888-35-0x00000000060F0000-0x00000000060FD000-memory.dmp

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memory/3888-36-0x0000000006100000-0x0000000006109000-memory.dmp

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memory/3888-38-0x0000000006130000-0x000000000613A000-memory.dmp

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memory/3948-0-0x0000000073490000-0x0000000073B7E000-memory.dmp

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memory/3948-10-0x0000000005F30000-0x0000000005F74000-memory.dmp

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memory/3948-9-0x0000000005EC0000-0x0000000005F2D000-memory.dmp

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memory/3948-8-0x0000000005100000-0x000000000510B000-memory.dmp

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memory/3948-7-0x00000000051C0000-0x00000000051C1000-memory.dmp

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memory/3948-6-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

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memory/3948-5-0x0000000005230000-0x0000000005231000-memory.dmp

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memory/3948-4-0x0000000005730000-0x0000000005731000-memory.dmp

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memory/3948-3-0x0000000005050000-0x0000000005051000-memory.dmp

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memory/3948-1-0x0000000000640000-0x0000000000641000-memory.dmp

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