nanocore | 9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c

General

Target

eReceiptpdf.exe
Size

177KB
MD5

c97f7f2dea671626ab1c6d3d1ad59422
SHA1

de5bc22d6558a46f99784598f550a3affab19ada
SHA256

9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c
SHA512

0c9ff6b31c925653c366b9d59a3ddb58a630c8130e6df700216434c38e125663ebc8596cf830aee5b45c31894f014c279aa94aace44560bbc33fe0f2a5f89b08

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zeegod.duckdns.org:8655

Mutex

d49cd953-2518-4f4a-81ab-2e5bbd26887f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-06-24T01:34:29.058466436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8655
default_group
kings
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
d49cd953-2518-4f4a-81ab-2e5bbd26887f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
zeegod.duckdns.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:

eReceiptpdf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Service = "C:\\Program Files (x86)\\SMTP Service\\smtpsvc.exe"	eReceiptpdf.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

eReceiptpdf.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA eReceiptpdf.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs

Processes:

eReceiptpdf.exe

pid	process
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

eReceiptpdf.exe

description pid process target process

PID 1588 set thread context of 876 1588 eReceiptpdf.exe eReceiptpdf.exe

description	pid	process	target process
PID 1588 set thread context of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe

Drops file in Program Files directory 2 IoCs

Processes:

eReceiptpdf.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	eReceiptpdf.exe
File opened for modification	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	eReceiptpdf.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2028 1588 WerFault.exe eReceiptpdf.exe

pid	pid_target	process	target process
2028	1588	WerFault.exe	eReceiptpdf.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

eReceiptpdf.exeWerFault.exeeReceiptpdf.exe

pid	process
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
1588	eReceiptpdf.exe
2028	WerFault.exe
2028	WerFault.exe
2028	WerFault.exe
2028	WerFault.exe
2028	WerFault.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe
876	eReceiptpdf.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

eReceiptpdf.exeWerFault.exe

pid process

876 eReceiptpdf.exe
2028 WerFault.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

eReceiptpdf.exeWerFault.exeeReceiptpdf.exe

description pid process

Token: SeDebugPrivilege 1588 eReceiptpdf.exe
Token: SeDebugPrivilege 2028 WerFault.exe
Token: SeDebugPrivilege 876 eReceiptpdf.exe

pid	process
876	eReceiptpdf.exe
2028	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1588	eReceiptpdf.exe
Token: SeDebugPrivilege	2028	WerFault.exe
Token: SeDebugPrivilege	876	eReceiptpdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

eReceiptpdf.exe

description	pid	process	target process
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 876	1588	eReceiptpdf.exe	eReceiptpdf.exe
PID 1588 wrote to memory of 2028	1588	eReceiptpdf.exe	WerFault.exe
PID 1588 wrote to memory of 2028	1588	eReceiptpdf.exe	WerFault.exe
PID 1588 wrote to memory of 2028	1588	eReceiptpdf.exe	WerFault.exe
PID 1588 wrote to memory of 2028	1588	eReceiptpdf.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\eReceiptpdf.exe
"C:\Users\Admin\AppData\Local\Temp\eReceiptpdf.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588

C:\Users\Admin\AppData\Local\Temp\eReceiptpdf.exe
"C:\Users\Admin\AppData\Local\Temp\eReceiptpdf.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:876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 1592
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2028

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/876-71-0x00000000002C0000-0x00000000002C5000-memory.dmp

Filesize
20KB

Download
memory/876-87-0x0000000002250000-0x000000000225F000-memory.dmp

Filesize
60KB

Download
memory/876-72-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/876-85-0x0000000002180000-0x000000000218A000-memory.dmp

Filesize
40KB

Download
memory/876-86-0x0000000002190000-0x00000000021B9000-memory.dmp

Filesize
164KB

Download
memory/876-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-63-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-65-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-66-0x000000000041E792-mapping.dmp

Download
memory/876-67-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/876-84-0x00000000008A0000-0x00000000008AF000-memory.dmp

Filesize
60KB

Download
memory/876-70-0x0000000004F40000-0x0000000004F41000-memory.dmp

Filesize
4KB

Download
memory/876-77-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/876-73-0x00000000002E0000-0x00000000002F9000-memory.dmp

Filesize
100KB

Download
memory/876-78-0x0000000000750000-0x000000000075C000-memory.dmp

Filesize
48KB

Download
memory/876-74-0x0000000000480000-0x0000000000483000-memory.dmp

Filesize
12KB

Download
memory/876-75-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/876-76-0x00000000006C0000-0x00000000006D5000-memory.dmp

Filesize
84KB

Download
memory/876-80-0x0000000000770000-0x0000000000777000-memory.dmp

Filesize
28KB

Download
memory/876-83-0x0000000000810000-0x0000000000819000-memory.dmp

Filesize
36KB

Download
memory/876-82-0x0000000000780000-0x000000000078D000-memory.dmp

Filesize
52KB

Download
memory/876-79-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/1588-57-0x0000000075321000-0x0000000075323000-memory.dmp

Filesize
8KB

Download
memory/1588-58-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/1588-60-0x0000000000810000-0x0000000000857000-memory.dmp

Filesize
284KB

Download
memory/1588-59-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download
memory/1588-55-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/2028-81-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2028-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads