nanocore | 99f9974d7d26d72a09760f3337451e1f094cb07439ead254674f29030f80de69

General

Target

BLWhbk1QHVWt40L46pdf.scr.exe
Size

915KB
MD5

b96b781520a1ae7bf775f59132666ead
SHA1

a5ce921bb5bf24b0537b4750191d59a794c24789
SHA256

99f9974d7d26d72a09760f3337451e1f094cb07439ead254674f29030f80de69
SHA512

23174a91247a52d94ea1def63fecdace294773eb410424f8377fc09d19a0d85930af1cc6a4162ab4c7e2bc9922f9614e48b47d9d262a549bef58a84cf78b84e6
SSDEEP

12288:r3V65m/hXgCdd8hbnEfelWrlJr9OPwQF+kUQD2ZfEu587+k4ee:rKm/h18hbhGltywQoU

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

power22.myftp.org:3421

Mutex

dbdb690f-8b48-40aa-8353-6db2541a2119

Attributes

activate_away_mode
true
backup_connection_host
power22.myftp.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-08-01T11:35:16.039173836Z
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
3421
default_group
WIN$$
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
dbdb690f-8b48-40aa-8353-6db2541a2119
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
power22.myftp.org
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

BLWhbk1QHVWt40L46pdf.scr.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AGP Manager = "C:\\Program Files (x86)\\AGP Manager\\agpmgr.exe"	BLWhbk1QHVWt40L46pdf.scr.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

BLWhbk1QHVWt40L46pdf.scr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	BLWhbk1QHVWt40L46pdf.scr.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exe

description pid process target process

PID 832 set thread context of 1860 832 BLWhbk1QHVWt40L46pdf.scr.exe BLWhbk1QHVWt40L46pdf.scr.exe

description	pid	process	target process
PID 832 set thread context of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe

Drops file in Program Files directory 2 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exe

description	ioc	process
File created	C:\Program Files (x86)\AGP Manager\agpmgr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
File opened for modification	C:\Program Files (x86)\AGP Manager\agpmgr.exe	BLWhbk1QHVWt40L46pdf.scr.exe

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

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
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

468 schtasks.exe
948 schtasks.exe
1600 schtasks.exe

pid	process
468	schtasks.exe
948	schtasks.exe
1600	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exepowershell.exeBLWhbk1QHVWt40L46pdf.scr.exe

pid	process
832	BLWhbk1QHVWt40L46pdf.scr.exe
832	BLWhbk1QHVWt40L46pdf.scr.exe
832	BLWhbk1QHVWt40L46pdf.scr.exe
1164	powershell.exe
1860	BLWhbk1QHVWt40L46pdf.scr.exe
1860	BLWhbk1QHVWt40L46pdf.scr.exe
1860	BLWhbk1QHVWt40L46pdf.scr.exe
1860	BLWhbk1QHVWt40L46pdf.scr.exe
1860	BLWhbk1QHVWt40L46pdf.scr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exe

pid process

1860 BLWhbk1QHVWt40L46pdf.scr.exe

pid	process
1860	BLWhbk1QHVWt40L46pdf.scr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exepowershell.exeBLWhbk1QHVWt40L46pdf.scr.exe

description	pid	process
Token: SeDebugPrivilege	832	BLWhbk1QHVWt40L46pdf.scr.exe
Token: SeDebugPrivilege	1164	powershell.exe
Token: SeDebugPrivilege	1860	BLWhbk1QHVWt40L46pdf.scr.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

BLWhbk1QHVWt40L46pdf.scr.exeBLWhbk1QHVWt40L46pdf.scr.exe

description	pid	process	target process
PID 832 wrote to memory of 1164	832	BLWhbk1QHVWt40L46pdf.scr.exe	powershell.exe
PID 832 wrote to memory of 1164	832	BLWhbk1QHVWt40L46pdf.scr.exe	powershell.exe
PID 832 wrote to memory of 1164	832	BLWhbk1QHVWt40L46pdf.scr.exe	powershell.exe
PID 832 wrote to memory of 1164	832	BLWhbk1QHVWt40L46pdf.scr.exe	powershell.exe
PID 832 wrote to memory of 468	832	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 832 wrote to memory of 468	832	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 832 wrote to memory of 468	832	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 832 wrote to memory of 468	832	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 832 wrote to memory of 1860	832	BLWhbk1QHVWt40L46pdf.scr.exe	BLWhbk1QHVWt40L46pdf.scr.exe
PID 1860 wrote to memory of 948	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 948	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 948	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 948	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 1600	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 1600	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 1600	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe
PID 1860 wrote to memory of 1600	1860	BLWhbk1QHVWt40L46pdf.scr.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\BLWhbk1QHVWt40L46pdf.scr.exe
"C:\Users\Admin\AppData\Local\Temp\BLWhbk1QHVWt40L46pdf.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OGaPrntx.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1164

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OGaPrntx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA96A.tmp"
2⤵
- Creates scheduled task(s)
PID:468

C:\Users\Admin\AppData\Local\Temp\BLWhbk1QHVWt40L46pdf.scr.exe
"C:\Users\Admin\AppData\Local\Temp\BLWhbk1QHVWt40L46pdf.scr.exe"
2⤵
- 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:1860

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "AGP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB27E.tmp"
3⤵
- Creates scheduled task(s)
PID:948

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "AGP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB369.tmp"
3⤵
- Creates scheduled task(s)
PID:1600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA96A.tmp

Filesize
1KB

MD5
efcb0f0fe024fcafad42dd3ef5dfa800

SHA1
a119ea670677db953e514495def7b068317316c6

SHA256
bc27feda04347eb919ab3758b7f08346cf4a7e2b4f796979639350cd2c5e805e

SHA512
5c15969c4bead6c76b8f513c0f99fd7bafee683683c6b225f8a49f9847100d0cc3509b5134161c972e1261c0c3677b8277cec0c8e93ec82179ce529c1ec2039f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB27E.tmp

Filesize
1KB

MD5
04f59a991f71e5f990df15c9bb24e6fd

SHA1
084babe0fb6fba12e0c830235314131f036dd027

SHA256
0addc222295d6e9ce719edae3cd6b9763dbfa7d7c61f740569f408f7c5505fc3

SHA512
492b07b46e731cb055c5b9653523cbeb54b96a22c41dd17d62b02e51cb77d5959a2f96810d6811fcaf609039a7851258cd5649342ce0f4b304ffe557dcd734da

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB369.tmp

Filesize
1KB

MD5
885d6dd30570594e167fadb59d9ca0ea

SHA1
9981e583644c4eb9cf5056615a0e1c2913c8983b

SHA256
7155bc082d1713d77c2797575ee0ade8467fb7012f5376c1d6f4aa618141a7d2

SHA512
1623218143c2c25a7c85fa9da8e0f251f04a5eb848c4d0aa10bfb78688518b82393a2b3c7f287a9dc06a366ef9f46d0d4e2d246ad4cef4554a74c0bb6ff9dd2a

Download Submit
memory/468-60-0x0000000000000000-mapping.dmp

Download
memory/832-57-0x00000000002F0000-0x00000000002FC000-memory.dmp

Filesize
48KB

Download
memory/832-58-0x0000000004EE0000-0x0000000004F74000-memory.dmp

Filesize
592KB

Download
memory/832-63-0x00000000048D0000-0x000000000490A000-memory.dmp

Filesize
232KB

Download
memory/832-54-0x00000000009E0000-0x0000000000ACC000-memory.dmp

Filesize
944KB

Download
memory/832-56-0x0000000000640000-0x0000000000658000-memory.dmp

Filesize
96KB

Download
memory/832-55-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/948-77-0x0000000000000000-mapping.dmp

Download
memory/1164-59-0x0000000000000000-mapping.dmp

Download
memory/1164-85-0x000000006EE30000-0x000000006F3DB000-memory.dmp

Filesize
5.7MB

Download
memory/1164-81-0x000000006EE30000-0x000000006F3DB000-memory.dmp

Filesize
5.7MB

Download
memory/1600-79-0x0000000000000000-mapping.dmp

Download
memory/1860-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-86-0x0000000000460000-0x0000000000472000-memory.dmp

Filesize
72KB

Download
memory/1860-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-71-0x000000000041E792-mapping.dmp

Download
memory/1860-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-82-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/1860-83-0x0000000000350000-0x000000000036E000-memory.dmp

Filesize
120KB

Download
memory/1860-84-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/1860-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-75-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1860-87-0x0000000000580000-0x000000000059A000-memory.dmp

Filesize
104KB

Download
memory/1860-89-0x00000000006B0000-0x00000000006C2000-memory.dmp

Filesize
72KB

Download
memory/1860-88-0x00000000004C0000-0x00000000004CE000-memory.dmp

Filesize
56KB

Download
memory/1860-90-0x00000000006C0000-0x00000000006CE000-memory.dmp

Filesize
56KB

Download
memory/1860-91-0x00000000006D0000-0x00000000006DC000-memory.dmp

Filesize
48KB

Download
memory/1860-92-0x0000000000720000-0x0000000000734000-memory.dmp

Filesize
80KB

Download
memory/1860-93-0x0000000000730000-0x0000000000740000-memory.dmp

Filesize
64KB

Download
memory/1860-94-0x00000000008F0000-0x0000000000904000-memory.dmp

Filesize
80KB

Download
memory/1860-95-0x0000000000900000-0x000000000090E000-memory.dmp

Filesize
56KB

Download
memory/1860-96-0x0000000000960000-0x000000000098E000-memory.dmp

Filesize
184KB

Download
memory/1860-97-0x0000000000990000-0x00000000009A4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads