nanocore | c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36

General

Target

c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe
Size

1.4MB
MD5

7257ada04fb81f4a7cc024eca879188b
SHA1

bb40820a78fa5ac26589e557b2d2f14fac23cf45
SHA256

c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36
SHA512

193c3c73b01fcc7922c92d7162c2cce09ae6170a13d7e88d69978b5ccc93fc20938895df89e56122cf516eb13ceafe1f8c40086f181321ca33dfb6f4a78a5f35
SSDEEP

24576:6AHnh+eWsN3skA4RV1Hom2KXMmHaYDBNkmBRGEMdSR5ADIAsG/jJ45O:Nh+ZkldoPK8YaZSeIAmO

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

bnow.duckdns.org:4156

Mutex

fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb

Attributes

activate_away_mode
true
backup_connection_host
bnow.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-20T04:39:27.808758936Z
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
4156
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
fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
bnow.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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
Executes dropped EXE 2 IoCs

Processes:

igfxEM.exeigfxEM.exe

pid process

2008 igfxEM.exe
1268 igfxEM.exe
Loads dropped DLL 2 IoCs

Processes:

igfxEM.exeigfxEM.exe

pid process

2008 igfxEM.exe
1268 igfxEM.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

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

pid	process
2008	igfxEM.exe
1268	igfxEM.exe

pid	process
2008	igfxEM.exe
1268	igfxEM.exe

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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\WinSAT\igfxEM.exe	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exeigfxEM.exeigfxEM.exe

description	pid	process	target process
PID 1724 set thread context of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 2008 set thread context of 2004	2008	igfxEM.exe	RegAsm.exe
PID 1268 set thread context of 324	1268	igfxEM.exe	RegAsm.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2596 schtasks.exe
1848 schtasks.exe
112 schtasks.exe
2592 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

2356 RegAsm.exe
2356 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2356 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2356 RegAsm.exe

pid	process
2596	schtasks.exe
1848	schtasks.exe
112	schtasks.exe
2592	schtasks.exe

pid	process
2356	RegAsm.exe
2356	RegAsm.exe

pid	process
2356	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2356	RegAsm.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exeRegAsm.exetaskeng.exeigfxEM.exeigfxEM.exe

description	pid	process	target process
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 1724 wrote to memory of 2356	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	RegAsm.exe
PID 2356 wrote to memory of 2592	2356	RegAsm.exe	schtasks.exe
PID 2356 wrote to memory of 2592	2356	RegAsm.exe	schtasks.exe
PID 2356 wrote to memory of 2592	2356	RegAsm.exe	schtasks.exe
PID 2356 wrote to memory of 2592	2356	RegAsm.exe	schtasks.exe
PID 1724 wrote to memory of 2596	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	schtasks.exe
PID 1724 wrote to memory of 2596	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	schtasks.exe
PID 1724 wrote to memory of 2596	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	schtasks.exe
PID 1724 wrote to memory of 2596	1724	c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe	schtasks.exe
PID 2736 wrote to memory of 2008	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 2008	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 2008	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 2008	2736	taskeng.exe	igfxEM.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 2004	2008	igfxEM.exe	RegAsm.exe
PID 2008 wrote to memory of 1848	2008	igfxEM.exe	schtasks.exe
PID 2008 wrote to memory of 1848	2008	igfxEM.exe	schtasks.exe
PID 2008 wrote to memory of 1848	2008	igfxEM.exe	schtasks.exe
PID 2008 wrote to memory of 1848	2008	igfxEM.exe	schtasks.exe
PID 2736 wrote to memory of 1268	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 1268	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 1268	2736	taskeng.exe	igfxEM.exe
PID 2736 wrote to memory of 1268	2736	taskeng.exe	igfxEM.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 324	1268	igfxEM.exe	RegAsm.exe
PID 1268 wrote to memory of 112	1268	igfxEM.exe	schtasks.exe
PID 1268 wrote to memory of 112	1268	igfxEM.exe	schtasks.exe
PID 1268 wrote to memory of 112	1268	igfxEM.exe	schtasks.exe
PID 1268 wrote to memory of 112	1268	igfxEM.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe
"C:\Users\Admin\AppData\Local\Temp\c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1065.tmp"
3⤵
- Creates scheduled task(s)
PID:2592

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F
2⤵
- Creates scheduled task(s)
PID:2596

C:\Windows\system32\taskeng.exe
taskeng.exe {FD5543E9-8149-401B-B93A-B42AF358045A} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2736

C:\Users\Admin\WinSAT\igfxEM.exe
C:\Users\Admin\WinSAT\igfxEM.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:2004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F
3⤵
- Creates scheduled task(s)
PID:1848

C:\Users\Admin\WinSAT\igfxEM.exe
C:\Users\Admin\WinSAT\igfxEM.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:324

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F
3⤵
- Creates scheduled task(s)
PID:112

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

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\tmp1065.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\WinSAT\igfxEM.exe
Filesize
1.4MB

MD5
2a09f22796068af9f846064ad8a324d1

SHA1
a768619316f896a719d144ad6ab7069baf8bdc59

SHA256
3a33402f4eabcb2475e86ee1041af49e9d1fd69f95ea2229d8af3726b316ddea

SHA512
e104ccdec7ad6f709cfb1908b1b18bca60784bffada78efb242f18a848fa4abb071d5e9c0061a46cc65e0e9f81c971314f18236f5db234ff13f16c3d2c9fe656

Download Submit
C:\Users\Admin\azroles.lnk
Filesize
719B

MD5
9bbfaae8d2d3cfee3543797706b51998

SHA1
14fff96bb34825cdcaf6e18d3a01479002eb5837

SHA256
0df33e3f1c2305fc9d0fa00fc00102c4ceef9d733a15786010321897aadf9441

SHA512
a443fef84c86e75d3b5e5f31e915373966d4b1265debfdfcf7627199dcb8d9049cfce36f4af808f68dea6e1a324dbcb8cccdb1b8a2250c1e3d2571f47ad37ac9

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/1724-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2356-10-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2356-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2356-15-0x00000000009A0000-0x00000000009E0000-memory.dmp

Filesize
256KB

Download
memory/2356-19-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-20-0x00000000009A0000-0x00000000009E0000-memory.dmp

Filesize
256KB

Download
memory/2356-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2356-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2356-1-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads