nanocore | a898127d2c98fda1751d317cdf3a1d85f79de8fe762edb2415ec04e7c1c53a6f

General

Target

1017fcdd21ff4ee2a5ac3d90b680d2fe.exe
Size

627KB
MD5

1017fcdd21ff4ee2a5ac3d90b680d2fe
SHA1

b9e040314eb74c24ad9f42ce37032ad238a37649
SHA256

a898127d2c98fda1751d317cdf3a1d85f79de8fe762edb2415ec04e7c1c53a6f
SHA512

a14a8ba5d52b4e206fe25dd7f889061baf6d56f2fface2121254bf3b3ba24062d342d0f196347af6055261961b1a9b56a8b8b52c3f65843ed3c32e30644384db
SSDEEP

12288:pToPWBv/cpGrU3yJDwlNm2n+d6twT2/FRXJbIMp8NDSjt/:pTbBv5rUGGm5UtwT29EMp8J+/

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

justkowir.duckdns.org:8550

Mutex

513a9907-f4ca-4a36-8f25-fcb7088c00a5

Attributes

activate_away_mode
true
backup_connection_host
justkowir.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-01-03T15:53:14.690945336Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8550
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
513a9907-f4ca-4a36-8f25-fcb7088c00a5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
justkowir.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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	1017fcdd21ff4ee2a5ac3d90b680d2fe.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	fpipnlvahva.exe

Loads dropped DLL 1 IoCs

pid	Process
3600	fpipnlvahva.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iimn = "C:\\Users\\Admin\\AppData\\Roaming\\riyheotkjtu\\amrhioao.exe"	fpipnlvahva.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 3600	2892	fpipnlvahva.exe	88

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
224	2892	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3600	fpipnlvahva.exe
3600	fpipnlvahva.exe
3600	fpipnlvahva.exe
3600	fpipnlvahva.exe
3600	fpipnlvahva.exe
3600	fpipnlvahva.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3600	fpipnlvahva.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3600	fpipnlvahva.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2892	2228	1017fcdd21ff4ee2a5ac3d90b680d2fe.exe	86
PID 2228 wrote to memory of 2892	2228	1017fcdd21ff4ee2a5ac3d90b680d2fe.exe	86
PID 2228 wrote to memory of 2892	2228	1017fcdd21ff4ee2a5ac3d90b680d2fe.exe	86
PID 2892 wrote to memory of 3600	2892	fpipnlvahva.exe	88
PID 2892 wrote to memory of 3600	2892	fpipnlvahva.exe	88
PID 2892 wrote to memory of 3600	2892	fpipnlvahva.exe	88
PID 2892 wrote to memory of 3600	2892	fpipnlvahva.exe	88

C:\Users\Admin\AppData\Local\Temp\1017fcdd21ff4ee2a5ac3d90b680d2fe.exe
"C:\Users\Admin\AppData\Local\Temp\1017fcdd21ff4ee2a5ac3d90b680d2fe.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe
  "C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe
    "C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe"
    3⤵
    - Loads dropped DLL
    - Checks whether UAC is enabled
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:3600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 604
    3⤵
    - Program crash
    PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2892 -ip 2892
1⤵
PID:1140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ajzuctgwhq.rm

Filesize
6KB

MD5
653b6698f08c05f61382fd9abb47d3ff

SHA1
5b5a6dbe0f2a4dfe96a942e59e7530e398735526

SHA256
a8ead7b3bbd1c745ddf6bdd56754abef6c0b1e5c89c307a9a96271cf60b8a204

SHA512
f7e12a7fba40c14df31e52f25c763bd665e67ae3cf1d225fa102a7b1617fa3d4738cdcda3a9d0d6102abedd69be12c048d208d6e2a568257e86315e74c4d413d

Download Submit
C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe

Filesize
56KB

MD5
87db5b2fefc7222378a104d7f19a2fe6

SHA1
3b8cee98e2c9995b1f272a440a579292ad1494fb

SHA256
0a35fca48936fd55902f1c27b15232bb77dc3b8ddaf51717d537c7d51480c5e0

SHA512
5f63bbf8e89228e8e6d2c906caf1699ef8029c285066520728077b926dc15943d88a7551e404e67e8b3070204ec6615a77ee46ceae1e2f3cc574a6e16302a3c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe

Filesize
56KB

MD5
87db5b2fefc7222378a104d7f19a2fe6

SHA1
3b8cee98e2c9995b1f272a440a579292ad1494fb

SHA256
0a35fca48936fd55902f1c27b15232bb77dc3b8ddaf51717d537c7d51480c5e0

SHA512
5f63bbf8e89228e8e6d2c906caf1699ef8029c285066520728077b926dc15943d88a7551e404e67e8b3070204ec6615a77ee46ceae1e2f3cc574a6e16302a3c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe

Filesize
56KB

MD5
87db5b2fefc7222378a104d7f19a2fe6

SHA1
3b8cee98e2c9995b1f272a440a579292ad1494fb

SHA256
0a35fca48936fd55902f1c27b15232bb77dc3b8ddaf51717d537c7d51480c5e0

SHA512
5f63bbf8e89228e8e6d2c906caf1699ef8029c285066520728077b926dc15943d88a7551e404e67e8b3070204ec6615a77ee46ceae1e2f3cc574a6e16302a3c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\fpipnlvahva.exe

Filesize
56KB

MD5
87db5b2fefc7222378a104d7f19a2fe6

SHA1
3b8cee98e2c9995b1f272a440a579292ad1494fb

SHA256
0a35fca48936fd55902f1c27b15232bb77dc3b8ddaf51717d537c7d51480c5e0

SHA512
5f63bbf8e89228e8e6d2c906caf1699ef8029c285066520728077b926dc15943d88a7551e404e67e8b3070204ec6615a77ee46ceae1e2f3cc574a6e16302a3c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tdruo.j

Filesize
280KB

MD5
4b6c6f48f5821d454e178621b0e1ac81

SHA1
31ea40a6563dc7b0007faf50de68e2f52dded053

SHA256
d8d01e1f71f56f8d39386e5346efac30fe9480370974127e409d61b648cd7afd

SHA512
88487b71d1558a0dce462b71244452db14c37878ff44dde9935d304b23c6cf9c73f38795ddcfbbaf0d9e9cc9f7ce585d054f2b24e7ba7610119ba7f240ef75ce

Download Submit
memory/2892-155-0x00000000005E0000-0x00000000005E2000-memory.dmp

Filesize
8KB

Download
memory/3600-156-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-165-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-157-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download
memory/3600-159-0x0000000005730000-0x00000000057CC000-memory.dmp

Filesize
624KB

Download
memory/3600-160-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/3600-162-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-163-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-158-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-166-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/3600-167-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-168-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-169-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3600-171-0x0000000007180000-0x00000000071E6000-memory.dmp

Filesize
408KB

Download
memory/3600-154-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads