nanocore | 50e40b11c1d866597929f9b8020a644cc0bdbeb7ca12de0cff68ce78d018a50d

General

Target

img-098765678.exe
Size

1.2MB
MD5

84f0d89c41aa198450c551b715eeec1c
SHA1

a6eb13901ebe55192a224c7ef170892d2f932f79
SHA256

50e40b11c1d866597929f9b8020a644cc0bdbeb7ca12de0cff68ce78d018a50d
SHA512

9930942697767e93273b66459f68e5564aa73f2e6dce3f06a573e9882647c18e2f0d1f7eb4c2abc6db876cbec8d8f97845194c20545f00d3ed875ef57d77f1aa

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

6262.hopto.org:6262

185.140.53.131:6262

Mutex

7b578534-8b04-4a5d-9eb5-d375830cf45d

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.131
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-08-31T05:14:41.931016736Z
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
6262
default_group
6262
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
7b578534-8b04-4a5d-9eb5-d375830cf45d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
6262.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
Executes dropped EXE 2 IoCs

Processes:

img-098765678.exeInstallUtil.exe

pid process

1572 img-098765678.exe
1784 InstallUtil.exe

pid	process
1572	img-098765678.exe
1784	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 3 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral2/memory/2880-121-0x0000000005E90000-0x0000000005EB1000-memory.dmp	agile_net
behavioral2/memory/2880-126-0x0000000004D50000-0x000000000524E000-memory.dmp	agile_net
behavioral2/memory/1572-140-0x0000000005260000-0x000000000575E000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\new open = "C:\\Users\\Admin\\Favorites\\img-098765678.exe"	reg.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

InstallUtil.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA InstallUtil.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

img-098765678.exe

description pid process target process

PID 1572 set thread context of 1784 1572 img-098765678.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

img-098765678.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000_Classes\Local Settings\MuiCache img-098765678.exe

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

description	pid	process	target process
PID 1572 set thread context of 1784	1572	img-098765678.exe	InstallUtil.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000_Classes\Local Settings\MuiCache	img-098765678.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

img-098765678.exeimg-098765678.exeInstallUtil.exe

pid	process
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
2880	img-098765678.exe
1572	img-098765678.exe
1572	img-098765678.exe
1572	img-098765678.exe
1784	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

InstallUtil.exe

pid process

1784 InstallUtil.exe

pid	process
1784	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

img-098765678.exeimg-098765678.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2880	img-098765678.exe
Token: SeDebugPrivilege	1572	img-098765678.exe
Token: SeDebugPrivilege	1784	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

img-098765678.execmd.exeimg-098765678.exe

description	pid	process	target process
PID 2880 wrote to memory of 848	2880	img-098765678.exe	cmd.exe
PID 2880 wrote to memory of 848	2880	img-098765678.exe	cmd.exe
PID 2880 wrote to memory of 848	2880	img-098765678.exe	cmd.exe
PID 848 wrote to memory of 2000	848	cmd.exe	reg.exe
PID 848 wrote to memory of 2000	848	cmd.exe	reg.exe
PID 848 wrote to memory of 2000	848	cmd.exe	reg.exe
PID 2880 wrote to memory of 1572	2880	img-098765678.exe	img-098765678.exe
PID 2880 wrote to memory of 1572	2880	img-098765678.exe	img-098765678.exe
PID 2880 wrote to memory of 1572	2880	img-098765678.exe	img-098765678.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe
PID 1572 wrote to memory of 1784	1572	img-098765678.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\img-098765678.exe
"C:\Users\Admin\AppData\Local\Temp\img-098765678.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2880

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "new open" /t REG_SZ /d "C:\Users\Admin\Favorites\img-098765678.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "new open" /t REG_SZ /d "C:\Users\Admin\Favorites\img-098765678.exe"
3⤵
- Adds Run key to start application
PID:2000

C:\Users\Admin\Favorites\img-098765678.exe
"C:\Users\Admin\Favorites\img-098765678.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1572

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1784

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

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\img-098765678.exe.log
MD5
009b86ab4020fc209c5914515b3aff93

SHA1
780cabb26fba207e4de8a78a89092b5b681d3ef9

SHA256
f866c5c64134450a52ec440545e84269cef199217fb61a640d79c17c5126c951

SHA512
9837fb25e9a72ca4397bef8eb72d0f2820deebfa79b81771ea071a0e853330bc791714795e2096704523b3bdc1a914632b86ae311182c12bcc4d93eb0de0b408

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\Favorites\img-098765678.exe
MD5
84f0d89c41aa198450c551b715eeec1c

SHA1
a6eb13901ebe55192a224c7ef170892d2f932f79

SHA256
50e40b11c1d866597929f9b8020a644cc0bdbeb7ca12de0cff68ce78d018a50d

SHA512
9930942697767e93273b66459f68e5564aa73f2e6dce3f06a573e9882647c18e2f0d1f7eb4c2abc6db876cbec8d8f97845194c20545f00d3ed875ef57d77f1aa

Download Submit
C:\Users\Admin\Favorites\img-098765678.exe
MD5
84f0d89c41aa198450c551b715eeec1c

SHA1
a6eb13901ebe55192a224c7ef170892d2f932f79

SHA256
50e40b11c1d866597929f9b8020a644cc0bdbeb7ca12de0cff68ce78d018a50d

SHA512
9930942697767e93273b66459f68e5564aa73f2e6dce3f06a573e9882647c18e2f0d1f7eb4c2abc6db876cbec8d8f97845194c20545f00d3ed875ef57d77f1aa

Download Submit
memory/848-124-0x0000000000000000-mapping.dmp

Download
memory/1572-142-0x00000000096E0000-0x00000000096E1000-memory.dmp

Filesize
4KB

Download
memory/1572-127-0x0000000000000000-mapping.dmp

Download
memory/1572-136-0x0000000005260000-0x000000000575E000-memory.dmp

Filesize
5.0MB

Download
memory/1572-140-0x0000000005260000-0x000000000575E000-memory.dmp

Filesize
5.0MB

Download
memory/1572-141-0x00000000070D0000-0x00000000070DB000-memory.dmp

Filesize
44KB

Download
memory/1784-143-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1784-155-0x0000000004F10000-0x000000000540E000-memory.dmp

Filesize
5.0MB

Download
memory/1784-154-0x0000000005A90000-0x0000000005AA9000-memory.dmp

Filesize
100KB

Download
memory/1784-153-0x0000000004EF0000-0x0000000004EF5000-memory.dmp

Filesize
20KB

Download
memory/1784-152-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/1784-144-0x000000000041E792-mapping.dmp

Download
memory/2000-125-0x0000000000000000-mapping.dmp

Download
memory/2880-121-0x0000000005E90000-0x0000000005EB1000-memory.dmp

Filesize
132KB

Download
memory/2880-115-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2880-119-0x0000000004D50000-0x0000000004D51000-memory.dmp

Filesize
4KB

Download
memory/2880-118-0x0000000005250000-0x0000000005251000-memory.dmp

Filesize
4KB

Download
memory/2880-117-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

Filesize
4KB

Download
memory/2880-120-0x0000000004D50000-0x000000000524E000-memory.dmp

Filesize
5.0MB

Download
memory/2880-123-0x0000000005F10000-0x0000000005F11000-memory.dmp

Filesize
4KB

Download
memory/2880-126-0x0000000004D50000-0x000000000524E000-memory.dmp

Filesize
5.0MB

Download
memory/2880-122-0x0000000005F50000-0x0000000005F51000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads