nanocore | cb9b9f8d8cac9d52e977d07db47ea77dac2ea3c15054c628036c080e3c40ec12

General

Target

Proforma invoice no.SWR-2021PI011-thailand.scr
Size

641KB
MD5

ddb4202e9c820a4abf3d8429410e299d
SHA1

be01ad74c6b2c4e70c69c8e1a02c0ea3098c690c
SHA256

2fe6ae2a3d5969fbaf2134c6f48c019bb4daff1d1f3c63a5c30fa1e380b6664f
SHA512

d450f5ff463da4e2bfac14e58c6749fd1b9632b9bc071df994594b26a9af13e030b33ef83002a20b8b6c667799ddefb31f7029220199f1d857f940504d5d1295
SSDEEP

12288:PfR8MkASBIXTfC+DVyrgMoZepxNCsHIeaDgwGnCSVfU+dYprLK:x8MaBroExNCsHIBDgRCSVfU+dYpr

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.75:97

Mutex

75237636-ccfc-402a-827d-5ad01371659e

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-24T01:53:34.394429836Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
97
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
75237636-ccfc-402a-827d-5ad01371659e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.140.53.75
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Proforma invoice no.SWR-2021PI011-thailand.scr

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	Proforma invoice no.SWR-2021PI011-thailand.scr

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Proforma invoice no.SWR-2021PI011-thailand.scr

description pid process target process

PID 2212 set thread context of 1968 2212 Proforma invoice no.SWR-2021PI011-thailand.scr RegSvcs.exe

description	pid	process	target process
PID 2212 set thread context of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegSvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
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/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

1452 schtasks.exe
3376 schtasks.exe
2128 schtasks.exe

pid	process
1452	schtasks.exe
3376	schtasks.exe
2128	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

Proforma invoice no.SWR-2021PI011-thailand.scrRegSvcs.exepowershell.exe

pid	process
2212	Proforma invoice no.SWR-2021PI011-thailand.scr
2212	Proforma invoice no.SWR-2021PI011-thailand.scr
2212	Proforma invoice no.SWR-2021PI011-thailand.scr
2212	Proforma invoice no.SWR-2021PI011-thailand.scr
1968	RegSvcs.exe
1968	RegSvcs.exe
1968	RegSvcs.exe
1968	RegSvcs.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1968 RegSvcs.exe

pid	process
1968	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Proforma invoice no.SWR-2021PI011-thailand.scrRegSvcs.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2212	Proforma invoice no.SWR-2021PI011-thailand.scr
Token: SeDebugPrivilege	1968	RegSvcs.exe
Token: SeDebugPrivilege	3716	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Proforma invoice no.SWR-2021PI011-thailand.scrRegSvcs.exe

description	pid	process	target process
PID 2212 wrote to memory of 3716	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	powershell.exe
PID 2212 wrote to memory of 3716	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	powershell.exe
PID 2212 wrote to memory of 3716	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	powershell.exe
PID 2212 wrote to memory of 3376	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	schtasks.exe
PID 2212 wrote to memory of 3376	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	schtasks.exe
PID 2212 wrote to memory of 3376	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	schtasks.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 2212 wrote to memory of 1968	2212	Proforma invoice no.SWR-2021PI011-thailand.scr	RegSvcs.exe
PID 1968 wrote to memory of 2128	1968	RegSvcs.exe	schtasks.exe
PID 1968 wrote to memory of 2128	1968	RegSvcs.exe	schtasks.exe
PID 1968 wrote to memory of 2128	1968	RegSvcs.exe	schtasks.exe
PID 1968 wrote to memory of 1452	1968	RegSvcs.exe	schtasks.exe
PID 1968 wrote to memory of 1452	1968	RegSvcs.exe	schtasks.exe
PID 1968 wrote to memory of 1452	1968	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Proforma invoice no.SWR-2021PI011-thailand.scr
"C:\Users\Admin\AppData\Local\Temp\Proforma invoice no.SWR-2021PI011-thailand.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Proforma invoice no.SWR-2021PI011-thailand.scr"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3716

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YpERQbIAzbRggg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB418.tmp"
2⤵
- Creates scheduled task(s)
PID:3376

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBA71.tmp"
3⤵
- Creates scheduled task(s)
PID:2128

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBB7C.tmp"
3⤵
- Creates scheduled task(s)
PID:1452

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1348 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:224

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dey4ojti.g4m.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBA71.tmp
Filesize
1KB

MD5
40b11ef601fb28f9b2e69d36857bf2ec

SHA1
b6454020ad2ceed193f4792b77001d0bd741b370

SHA256
c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

SHA512
e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBB7C.tmp
Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/1968-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1968-11-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/1968-12-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/1968-13-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/1968-70-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/1968-62-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/1968-61-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/1968-26-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/2212-3-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/2212-14-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/2212-2-0x0000000001440000-0x0000000001450000-memory.dmp

Filesize
64KB

Download
memory/2212-0-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/2212-1-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/3716-39-0x0000000006410000-0x0000000006764000-memory.dmp

Filesize
3.3MB

Download
memory/3716-57-0x0000000007D10000-0x0000000007D2A000-memory.dmp

Filesize
104KB

Download
memory/3716-29-0x00000000063A0000-0x0000000006406000-memory.dmp

Filesize
408KB

Download
memory/3716-27-0x0000000005A20000-0x0000000005A42000-memory.dmp

Filesize
136KB

Download
memory/3716-22-0x0000000005D00000-0x0000000006328000-memory.dmp

Filesize
6.2MB

Download
memory/3716-40-0x0000000006A00000-0x0000000006A1E000-memory.dmp

Filesize
120KB

Download
memory/3716-41-0x0000000006E00000-0x0000000006E4C000-memory.dmp

Filesize
304KB

Download
memory/3716-42-0x00000000056C0000-0x00000000056D0000-memory.dmp

Filesize
64KB

Download
memory/3716-43-0x00000000079D0000-0x0000000007A02000-memory.dmp

Filesize
200KB

Download
memory/3716-44-0x0000000071B80000-0x0000000071BCC000-memory.dmp

Filesize
304KB

Download
memory/3716-54-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

Filesize
120KB

Download
memory/3716-55-0x0000000007A10000-0x0000000007AB3000-memory.dmp

Filesize
652KB

Download
memory/3716-56-0x0000000008350000-0x00000000089CA000-memory.dmp

Filesize
6.5MB

Download
memory/3716-28-0x0000000006330000-0x0000000006396000-memory.dmp

Filesize
408KB

Download
memory/3716-58-0x0000000007D80000-0x0000000007D8A000-memory.dmp

Filesize
40KB

Download
memory/3716-59-0x0000000007FB0000-0x0000000008046000-memory.dmp

Filesize
600KB

Download
memory/3716-60-0x0000000007F30000-0x0000000007F41000-memory.dmp

Filesize
68KB

Download
memory/3716-17-0x00000000056C0000-0x00000000056D0000-memory.dmp

Filesize
64KB

Download
memory/3716-16-0x00000000030A0000-0x00000000030D6000-memory.dmp

Filesize
216KB

Download
memory/3716-63-0x0000000007F60000-0x0000000007F6E000-memory.dmp

Filesize
56KB

Download
memory/3716-64-0x0000000007F70000-0x0000000007F84000-memory.dmp

Filesize
80KB

Download
memory/3716-65-0x0000000008070000-0x000000000808A000-memory.dmp

Filesize
104KB

Download
memory/3716-66-0x0000000008050000-0x0000000008058000-memory.dmp

Filesize
32KB

Download
memory/3716-69-0x0000000071350000-0x0000000071B00000-memory.dmp

Filesize
7.7MB

Download
memory/3716-15-0x0000000071350000-0x0000000071B00000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads