nanocore | 8fed5e61126a96dc25fb235e8e75b4de8e4674499accf567328b2c2b2e185ddb

General

Target

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
Size

509KB
MD5

4015c517b9adebebdbd3eabc75a1957e
SHA1

78848c7abae8d9315b103a49cd1866eee1681a2b
SHA256

8fed5e61126a96dc25fb235e8e75b4de8e4674499accf567328b2c2b2e185ddb
SHA512

3cb797fb02617e65299f22047168279c182d38be471622a9044e9fb55d900f878ce6ef7ff5f6f2ff1b7deaab15d7b226a7c632370935380b125c7e688af8f3a7
SSDEEP

12288:jc5IcF8kMk3BzQIL2ARx7L/7gXR2taJRFpDVFrd:wJF3XBxf7a7Rz

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chykn.hopto.org:8181

91.192.100.5:8181

Mutex

d4323027-d419-4fa1-b832-15daf5fb40a0

Attributes

activate_away_mode
true
backup_connection_host
91.192.100.5
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-24T07:23:15.169783836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8181
default_group
NOVEMBER
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
d4323027-d419-4fa1-b832-15daf5fb40a0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
chykn.hopto.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

T1547.001

Modify Registry

T1112

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	pid	process	target process
PID 1480 set thread context of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

pid	process
1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

pid process

5012 4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

pid	process
5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
Token: SeDebugPrivilege	5012	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

description	pid	process	target process
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
PID 1480 wrote to memory of 5012	1480	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe	4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480

C:\Users\Admin\AppData\Local\Temp\4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4015c517b9adebebdbd3eabc75a1957e_JaffaCakes118.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:5012

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3740 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:4624

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

memory/1480-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/1480-1-0x0000000000350000-0x00000000003D8000-memory.dmp

Filesize
544KB

Download
memory/1480-2-0x0000000004CE0000-0x0000000004D1A000-memory.dmp

Filesize
232KB

Download
memory/1480-3-0x0000000007850000-0x0000000007DF4000-memory.dmp

Filesize
5.6MB

Download
memory/1480-4-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1480-5-0x0000000007340000-0x00000000073D2000-memory.dmp

Filesize
584KB

Download
memory/1480-6-0x00000000072A0000-0x00000000072C0000-memory.dmp

Filesize
128KB

Download
memory/1480-7-0x00000000074D0000-0x00000000074DA000-memory.dmp

Filesize
40KB

Download
memory/1480-8-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/1480-9-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1480-10-0x0000000009160000-0x00000000091FC000-memory.dmp

Filesize
624KB

Download
memory/5012-11-0x0000000000820000-0x0000000000858000-memory.dmp

Filesize
224KB

Download
memory/5012-12-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5012-13-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5012-16-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/5012-17-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

Filesize
120KB

Download
memory/5012-18-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

Filesize
40KB

Download
memory/5012-19-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5012-20-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads