nanocore | 99b799d28261cdefac2a4fcae6774324bfb9bb9aed868da301fc2292ed4b0902

General

Target

tmp.exe
Size

847KB
MD5

e31699917d9f141413507e5f628c2454
SHA1

9b7ff7f7f0a173f0851b0bcbf3de0654af52b7c9
SHA256

99b799d28261cdefac2a4fcae6774324bfb9bb9aed868da301fc2292ed4b0902
SHA512

018749a0782c4aed731adea492928637df2dad8db6b8813d831540bf7225c487bb3a7275f75dc797c11002cf57c7a9c9d48c453a90a7e45d8c988c81ed474f8d
SSDEEP

24576:sokPPpLnS2i5JEoP9OrozsW02IsPGaUYpF:Ehndi5P9EozsWBIsP/USF

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

craigjonson91211.freedynamicdns.net:2010

Mutex

314e68fd-30e1-43f4-a3e6-582b481b1081

Attributes

activate_away_mode
true
backup_connection_host
craigjonson91211.freedynamicdns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-07-25T15:37:55.685681636Z
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
2010
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
314e68fd-30e1-43f4-a3e6-582b481b1081
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
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:

tmp.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"	tmp.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

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

Processes:

tmp.exe

description pid process target process

PID 1768 set thread context of 1268 1768 tmp.exe tmp.exe

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

description	pid	process	target process
PID 1768 set thread context of 1268	1768	tmp.exe	tmp.exe

Drops file in Program Files directory 2 IoCs

Processes:

tmp.exe

description	ioc	process
File created	C:\Program Files (x86)\AGP Manager\agpmgr.exe	tmp.exe
File opened for modification	C:\Program Files (x86)\AGP Manager\agpmgr.exe	tmp.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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1716 schtasks.exe
380 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

tmp.exe

pid process

1268 tmp.exe
1268 tmp.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

tmp.exe

pid process

1268 tmp.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tmp.exe

description pid process

Token: SeDebugPrivilege 1268 tmp.exe

pid	process
1716	schtasks.exe
380	schtasks.exe

pid	process
1268	tmp.exe
1268	tmp.exe

pid	process
1268	tmp.exe

description	pid	process
Token: SeDebugPrivilege	1268	tmp.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

tmp.exetmp.exe

description	pid	process	target process
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1768 wrote to memory of 1268	1768	tmp.exe	tmp.exe
PID 1268 wrote to memory of 1716	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 1716	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 1716	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 1716	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 380	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 380	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 380	1268	tmp.exe	schtasks.exe
PID 1268 wrote to memory of 380	1268	tmp.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1768

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.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:1268

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "AGP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC208.tmp"
3⤵
- Creates scheduled task(s)
PID:1716

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "AGP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC2F3.tmp"
3⤵
- Creates scheduled task(s)
PID:380

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC208.tmp

Filesize
1KB

MD5
3f4dcafa44c36f23e4db2b2315fd09da

SHA1
8c83089d6f6c887a77af9b42ca09969f3b2f83f6

SHA256
b8475eb97200b8a15eaf07e0a2cddc5c95e5bc3e7a98685364c9796480de57dc

SHA512
e0624dd6cf0d5e014e96a323d2f7ebe13b683af71bd6ddafa3005cdc2f3c764cfca509262d442fc844b4b390d241ccf3eb36d30043d3d6f6e955a2ee9f792678

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC2F3.tmp

Filesize
1KB

MD5
885d6dd30570594e167fadb59d9ca0ea

SHA1
9981e583644c4eb9cf5056615a0e1c2913c8983b

SHA256
7155bc082d1713d77c2797575ee0ade8467fb7012f5376c1d6f4aa618141a7d2

SHA512
1623218143c2c25a7c85fa9da8e0f251f04a5eb848c4d0aa10bfb78688518b82393a2b3c7f287a9dc06a366ef9f46d0d4e2d246ad4cef4554a74c0bb6ff9dd2a

Download Submit
memory/380-74-0x0000000000000000-mapping.dmp

Download
memory/1268-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-78-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/1268-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-66-0x000000000041E792-mapping.dmp

Download
memory/1268-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-77-0x00000000004F0000-0x000000000050E000-memory.dmp

Filesize
120KB

Download
memory/1268-76-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/1716-72-0x0000000000000000-mapping.dmp

Download
memory/1768-57-0x0000000005F10000-0x0000000005FA4000-memory.dmp

Filesize
592KB

Download
memory/1768-56-0x0000000000550000-0x0000000000566000-memory.dmp

Filesize
88KB

Download
memory/1768-55-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1768-58-0x0000000002120000-0x000000000215A000-memory.dmp

Filesize
232KB

Download
memory/1768-54-0x00000000009D0000-0x0000000000AAA000-memory.dmp

Filesize
872KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads