nanocore | e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44

General

Target

Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
Size

701KB
MD5

87e76b3ab65fafd1506f411841c73e94
SHA1

3810482f5a3187ccf1dbc8ce4fc0752bb7e44c18
SHA256

e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44
SHA512

c51ab6b12270d827de00eaccd212468e24ce5510b9b8e8fda36efc7792ed72d1c2321af7a6552a576e9dcb0bb0dbed7ba5345cb959a4460b8a934f6fc67521d3
SSDEEP

12288:AYyPYswecl9ZzHS49uH5hYLl4D4i4uS8zpAzh33gyAmLxOjrIy6NYxYQL:cweKyILwXRA133gK2rIw

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.92.240.88:2777

Mutex

25449be1-a962-4d47-a9f7-c613578ec634

Attributes

activate_away_mode
true
backup_connection_host
91.92.240.88
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-04-19T10:57:33.704241736Z
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
2777
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
25449be1-a962-4d47-a9f7-c613578ec634
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.92.240.88
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
Nanocore family
nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Manager = "C:\\Program Files (x86)\\DOS Manager\\dosmgr.exe"	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4688 set thread context of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DOS Manager\dosmgr.exe	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
File opened for modification	C:\Program Files (x86)\DOS Manager\dosmgr.exe	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3236	schtasks.exe
3592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
Token: SeDebugPrivilege	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 4688 wrote to memory of 748	4688	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	91
PID 748 wrote to memory of 3236	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	92
PID 748 wrote to memory of 3236	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	92
PID 748 wrote to memory of 3236	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	92
PID 748 wrote to memory of 3592	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	94
PID 748 wrote to memory of 3592	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	94
PID 748 wrote to memory of 3592	748	Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe	94

C:\Users\Admin\AppData\Local\Temp\Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe
  "C:\Users\Admin\AppData\Local\Temp\Sigmanly_e207ac84a52789e4f93b901bdc24a0b9930759d50aab651cc3d5d1f3be7a3e44.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:748
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA4DB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3236
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA51A.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA4DB.tmp

Filesize
1KB

MD5
d911a26d11fbfea52ac5469fab8644d6

SHA1
961bd486ebb84714ac294857d2ab30117d736272

SHA256
717147419a0a78893c180b1d71223473db3776848ce54fd8af0c09543ed3f22c

SHA512
fc01cda0d900e93adf6e2556b09fb7f5be3a310e8b290326ca2b9c2807aaf99b9948f430f160cfa95e0d673da3c37c942af87120c57d30d01ba1566f24ddac5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA51A.tmp

Filesize
1KB

MD5
8f5713b14cee3089852f6c8d2a7a7d57

SHA1
8bffbea05715c6434ad593cce8a2c737f80ff788

SHA256
ab3ce102242c3144f87bcbfe83984a478821cd09e62c0e5211b2ab37dde02d2c

SHA512
82bd2378c2d6bb34a1ad3f2d26bfea583fc8403691bed6668521ba3e8bc7bdbdf142f872ddbc8e5251550f47c9bbee4eb3d0d6096f80d85259082cf68a454c72

Download Submit
memory/748-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-27-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/748-26-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/748-25-0x0000000006B80000-0x0000000006B8A000-memory.dmp

Filesize
40KB

Download
memory/748-24-0x0000000006A60000-0x0000000006A7E000-memory.dmp

Filesize
120KB

Download
memory/748-23-0x0000000005C40000-0x0000000005C4A000-memory.dmp

Filesize
40KB

Download
memory/748-15-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/748-13-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4688-5-0x0000000005410000-0x00000000054AC000-memory.dmp

Filesize
624KB

Download
memory/4688-10-0x0000000002AA0000-0x0000000002B1E000-memory.dmp

Filesize
504KB

Download
memory/4688-9-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4688-14-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4688-8-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4688-7-0x00000000054C0000-0x00000000054DE000-memory.dmp

Filesize
120KB

Download
memory/4688-6-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4688-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4688-4-0x00000000050E0000-0x00000000050EA000-memory.dmp

Filesize
40KB

Download
memory/4688-3-0x0000000005110000-0x00000000051A2000-memory.dmp

Filesize
584KB

Download
memory/4688-2-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/4688-1-0x0000000000640000-0x00000000006F6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads