nanocore | e7763c3bb26ac869ce31f856dbd583c7b64979afcadbbcff4618c7d42c1feb6d

Analysis

max time kernel
139s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2022 13:45

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General

Target

tmp.exe
Size

486KB
MD5

9c44d904890df75e5f1b7c3c3ba0b7db
SHA1

2aea8311e7e1178396d5308d3853b6dc0334f849
SHA256

e7763c3bb26ac869ce31f856dbd583c7b64979afcadbbcff4618c7d42c1feb6d
SHA512

bcf9af878879865941d85934df601fb00afc59d8bf2191b609c8d11ccf2205d100aea80c74118783e3e5f19b893a9c3dd2aff4db2792c3205645662661f69788
SSDEEP

12288:XnJYudWsonlmuKAJmK83qCz2B3aTO1EKoDIAzOZ:XJB3AmkmxSBIOZ

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

95.70.139.81:54984

Mutex

2afd92d3-82ee-48f4-9de3-98029fbb1ca4

Attributes

activate_away_mode
false
backup_connection_host
95.70.139.81
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-07-01T08:20:47.457547136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
54984
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
2afd92d3-82ee-48f4-9de3-98029fbb1ca4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
95.70.139.81
primary_dns_server
8.8.8.8
request_elevation
false
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

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\DDP Host = "C:\\Program Files (x86)\\DDP Host\\ddphost.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 4460 set thread context of 2112 4460 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 4460 set thread context of 2112	4460	tmp.exe	tmp.exe

Drops file in Program Files directory 2 IoCs

Processes:

tmp.exe

description	ioc	process
File created	C:\Program Files (x86)\DDP Host\ddphost.exe	tmp.exe
File opened for modification	C:\Program Files (x86)\DDP Host\ddphost.exe	tmp.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

tmp.exe

pid process

2112 tmp.exe
2112 tmp.exe
2112 tmp.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

tmp.exe

pid process

2112 tmp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

tmp.exetmp.exe

description pid process

Token: SeDebugPrivilege 4460 tmp.exe
Token: SeDebugPrivilege 2112 tmp.exe
Token: SeDebugPrivilege 2112 tmp.exe

pid	process
2112	tmp.exe
2112	tmp.exe
2112	tmp.exe

pid	process
2112	tmp.exe

description	pid	process
Token: SeDebugPrivilege	4460	tmp.exe
Token: SeDebugPrivilege	2112	tmp.exe
Token: SeDebugPrivilege	2112	tmp.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.exe
PID 4460 wrote to memory of 2112	4460	tmp.exe	tmp.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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4460

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
PID:2112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tmp.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2112-137-0x0000000000000000-mapping.dmp

Download
memory/2112-138-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4460-132-0x0000000000120000-0x00000000001A0000-memory.dmp

Filesize
512KB

Download
memory/4460-133-0x0000000005170000-0x0000000005714000-memory.dmp

Filesize
5.6MB

Download
memory/4460-134-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/4460-135-0x0000000004B60000-0x0000000004B6A000-memory.dmp

Filesize
40KB

Download
memory/4460-136-0x0000000004E70000-0x0000000004F0C000-memory.dmp

Filesize
624KB

Download