nanocore | 3adcbf8f4f72a3ec533cfd175c624b8b1d9404e72ab95f4ec8056968922cfff9

General

Target

PO#43-2018-VFT-FPS.scr
Size

594KB
MD5

3e469125a53065043e66127c9e071c69
SHA1

acaeb4b3c50034f660d01a830736dab98ba85846
SHA256

28de94cf55c15c8a694fafdfdf1e4a8a50a028dc3b590b578a25f6ebb51043c5
SHA512

065560482700c7a65491d24e95dce67583ad19e3b34e44a1aca20668a7395e4c12bbf9fc8aef7aa4c088a6dc7820b23bf60d63f9dcb92097db88a78721bc8cc7
SSDEEP

12288:i73YMO3LL8BfeMeTX+3iTEbW5gqtcL/Eh0/UIWu/gq:moRL4z3iyWKqtcoiX

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.163.100.9:87

Mutex

f1126821-b7e6-4ac2-a8d5-f1ace13fc56f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-06-14T07:44:20.112036436Z
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
87
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
f1126821-b7e6-4ac2-a8d5-f1ace13fc56f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.163.100.9
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
Executes dropped EXE 3 IoCs

Processes:

filename.exefilename.exefilename.exe

pid process

4084 filename.exe
4148 filename.exe
1952 filename.exe

pid	process
4084	filename.exe
4148	filename.exe
1952	filename.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exefilename.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Update = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\Update.txt \| cmd"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe"	filename.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

filename.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA filename.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

filename.exe

description pid process target process

PID 4084 set thread context of 1952 4084 filename.exe filename.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	filename.exe

description	pid	process	target process
PID 4084 set thread context of 1952	4084	filename.exe	filename.exe

Drops file in Program Files directory 2 IoCs

Processes:

filename.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	filename.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	filename.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

Processes:

schtasks.exeschtasks.exe

pid process

2360 schtasks.exe
3212 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

filename.exe

pid process

1952 filename.exe
1952 filename.exe
1952 filename.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

filename.exe

pid process

1952 filename.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO#43-2018-VFT-FPS.scrfilename.exefilename.exe

description pid process

Token: SeDebugPrivilege 3016 PO#43-2018-VFT-FPS.scr
Token: SeDebugPrivilege 4084 filename.exe
Token: SeDebugPrivilege 1952 filename.exe

pid	process
2360	schtasks.exe
3212	schtasks.exe

pid	process
1952	filename.exe
1952	filename.exe
1952	filename.exe

pid	process
1952	filename.exe

description	pid	process
Token: SeDebugPrivilege	3016	PO#43-2018-VFT-FPS.scr
Token: SeDebugPrivilege	4084	filename.exe
Token: SeDebugPrivilege	1952	filename.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

PO#43-2018-VFT-FPS.scrcmd.exefilename.execmd.exefilename.exe

description	pid	process	target process
PID 3016 wrote to memory of 3920	3016	PO#43-2018-VFT-FPS.scr	cmd.exe
PID 3016 wrote to memory of 3920	3016	PO#43-2018-VFT-FPS.scr	cmd.exe
PID 3016 wrote to memory of 3920	3016	PO#43-2018-VFT-FPS.scr	cmd.exe
PID 3920 wrote to memory of 4084	3920	cmd.exe	filename.exe
PID 3920 wrote to memory of 4084	3920	cmd.exe	filename.exe
PID 3920 wrote to memory of 4084	3920	cmd.exe	filename.exe
PID 4084 wrote to memory of 3884	4084	filename.exe	cmd.exe
PID 4084 wrote to memory of 3884	4084	filename.exe	cmd.exe
PID 4084 wrote to memory of 3884	4084	filename.exe	cmd.exe
PID 3884 wrote to memory of 5032	3884	cmd.exe	reg.exe
PID 3884 wrote to memory of 5032	3884	cmd.exe	reg.exe
PID 3884 wrote to memory of 5032	3884	cmd.exe	reg.exe
PID 4084 wrote to memory of 4148	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 4148	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 4148	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 4084 wrote to memory of 1952	4084	filename.exe	filename.exe
PID 1952 wrote to memory of 2360	1952	filename.exe	schtasks.exe
PID 1952 wrote to memory of 2360	1952	filename.exe	schtasks.exe
PID 1952 wrote to memory of 2360	1952	filename.exe	schtasks.exe
PID 1952 wrote to memory of 3212	1952	filename.exe	schtasks.exe
PID 1952 wrote to memory of 3212	1952	filename.exe	schtasks.exe
PID 1952 wrote to memory of 3212	1952	filename.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\PO#43-2018-VFT-FPS.scr
"C:\Users\Admin\AppData\Local\Temp\PO#43-2018-VFT-FPS.scr" /S
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016

C:\Windows\SysWOW64\cmd.exe
"cmd"
2⤵
- Suspicious use of WriteProcessMemory
PID:3920

C:\Users\Admin\Desktop\filename.exe
"C:\Users\Admin\Desktop\filename.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084

C:\Windows\SysWOW64\cmd.exe
"cmd"
4⤵
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\SysWOW64\reg.exe
reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Update" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\Update.txt" | cmd"
5⤵
- Adds Run key to start application
PID:5032

C:\Users\Admin\Desktop\filename.exe
"C:\Users\Admin\Desktop\filename.exe"
4⤵
- Executes dropped EXE
PID:4148

C:\Users\Admin\Desktop\filename.exe
"C:\Users\Admin\Desktop\filename.exe"
4⤵
- Executes dropped EXE
- 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:1952

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4BDE.tmp"
5⤵
- Creates scheduled task(s)
PID:2360

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4C7B.tmp"
5⤵
- Creates scheduled task(s)
PID:3212

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\filename.exe.log
Filesize
223B

MD5
cde6529abeea500fb852f29ba0da6115

SHA1
45f2f48492417ae6a0eade8aaa808d3d1d760743

SHA256
d7f4964443470b6729865676d76f5f1f416da633033071c34ea5eb19cdea53b5

SHA512
c95fa7faf6a90f32060dba70f79c4d66c68d6eec587306fb98f36fc3ba5d377ebf9dabf47298b71db208fb10f7ccb4e0ed82236c8f26bcc746552588bbb38234

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4BDE.tmp
Filesize
1KB

MD5
3e69cfdc97414457ef33010fb54c2ede

SHA1
3cd07f08434a402260b205263eb1de499853b1a1

SHA256
b55422096b144e40a6061d9e894cdb17d2690792ed8939329c4755099a0d73d8

SHA512
01f50c544e2bb42c36aed9bedf6202a204187cc247cf4c76b5071127f4098e635eb25c4fd922aea64cd34abd728fcea3491af658286db1eda2f3e89e547a282c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4C7B.tmp
Filesize
1KB

MD5
c4aecdef99eba873119e79616df3f4b0

SHA1
b1b3af52655fb633eed909dfed05b64fbbfac37c

SHA256
24fd0d87bea36a024449a95f808aaa174e4ed9003cb8a427b67c02411b8a2e0b

SHA512
e3f44b07267fccf4f5abd4efe80f2b037ddadc4cb898bdfca9d21ac5d79fcac828950065c2060d3ce125ee971fc3096183afee5287ba9951fbbda7257d8ed8d4

Download Submit
C:\Users\Admin\Desktop\filename.exe
Filesize
594KB

MD5
3e469125a53065043e66127c9e071c69

SHA1
acaeb4b3c50034f660d01a830736dab98ba85846

SHA256
28de94cf55c15c8a694fafdfdf1e4a8a50a028dc3b590b578a25f6ebb51043c5

SHA512
065560482700c7a65491d24e95dce67583ad19e3b34e44a1aca20668a7395e4c12bbf9fc8aef7aa4c088a6dc7820b23bf60d63f9dcb92097db88a78721bc8cc7

Download Submit
memory/1952-29-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/1952-21-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/1952-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1952-19-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/1952-20-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3016-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

Filesize
4KB

Download
memory/3016-9-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3016-2-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3016-1-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4084-8-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4084-18-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4084-11-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4084-10-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads