nanocore | 881c500e546e1321c5dc627a77800f0fa8986740cd9f1c880d1ca51b1b735735

General

Target

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
Size

763KB
MD5

487ebcf62e60ac87c55d75e9ea14de1c
SHA1

a75384cb4759f6f13e8511bfc4af7f689e8af0d2
SHA256

881c500e546e1321c5dc627a77800f0fa8986740cd9f1c880d1ca51b1b735735
SHA512

d81e241d067dc8905318a2a9069b9562bad06b090d61879e27250dcc35a7c63bbf6d22bb000ad9fa8008bf2e201b5fafb3972953c5ab2f462474e7f327976a1e
SSDEEP

12288:ZZi9709qfXjGoIrfGjaRJJtwH+40kk9kTHe8xAPzMXu1nbgh:ZZ4IrGj4J8a0HZ81lk

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.176:3765

Mutex

82fc2933-5a5f-4489-9daa-c2dc48469e2f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-06T00:47:56.924731936Z
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
3765
default_group
BIZ SALES
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
82fc2933-5a5f-4489-9daa-c2dc48469e2f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.140.53.176
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:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	pid	process	target process
PID 2668 set thread context of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

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

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2552 schtasks.exe
2576 schtasks.exe
2836 schtasks.exe

pid	process
2552	schtasks.exe
2576	schtasks.exe
2836	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

pid	process
292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

pid process

292 487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 292 487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe

description	pid	process	target process
PID 2668 wrote to memory of 2552	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 2668 wrote to memory of 2552	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 2668 wrote to memory of 2552	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 2668 wrote to memory of 2552	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 2668 wrote to memory of 292	2668	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
PID 292 wrote to memory of 2576	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2576	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2576	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2576	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2836	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2836	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2836	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe
PID 292 wrote to memory of 2836	292	487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YzyVekc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9972.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2552

C:\Users\Admin\AppData\Local\Temp\487ebcf62e60ac87c55d75e9ea14de1c_JaffaCakes118.exe
"{path}"
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:292

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9BF1.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2576

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9CEC.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2836

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9972.tmp
Filesize
1KB

MD5
d3c5963b7291e9b344b323cc01637c0c

SHA1
6eb3b662e585fa5328a3b56c353f1c503f49ff35

SHA256
816b20c7412dd1478ff478fde2fd0d90c6ce231ec675e23b1592021151342db7

SHA512
d1ba96df2ccd7f2a2d1dd163233ba4e800183e7b0ba6cf4f286da700c1a90a2d921259be6596bcffe2664da059ddef61fadd833ce8d5e8cfd6e1bf7d4c7a0bce

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9BF1.tmp
Filesize
1KB

MD5
05ece91625dd985e362a733dcf8f6311

SHA1
f40d181119735ad7b81eee3350adf6e109d26c18

SHA256
115aeaa41aca77817ba70fc58ea65dcdb42571b2415b59a30030f2317efe7912

SHA512
279f58563b052269d51535391050cec3e75fdd4a99dcaa00aaa23da5097627c40de6c7e14490f71d4e913e793b0aab83fd3d67f85e9f5234967279adbca6295f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9CEC.tmp
Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
memory/292-28-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/292-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-40-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/292-39-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/292-38-0x00000000006A0000-0x00000000006AA000-memory.dmp

Filesize
40KB

Download
memory/292-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/292-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-37-0x0000000000A90000-0x0000000000AAE000-memory.dmp

Filesize
120KB

Download
memory/292-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/292-36-0x0000000000680000-0x000000000068A000-memory.dmp

Filesize
40KB

Download
memory/292-26-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2668-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2668-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2668-1-0x00000000011C0000-0x0000000001284000-memory.dmp

Filesize
784KB

Download
memory/2668-27-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2668-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2668-3-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2668-6-0x0000000007EE0000-0x0000000007F6C000-memory.dmp

Filesize
560KB

Download
memory/2668-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads