neconyd | f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47e

Analysis

max time kernel
115s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2025 20:36

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General

Target

f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
Size

96KB
MD5

3076cf51738ce95e89569894b2fc7b40
SHA1

7d60990e226390257d7627dc0bb21ae491a21391
SHA256

f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47e
SHA512

cc311f8be8e08e1b1fbda869352201283671fedadd89b9fd7b9d3af7591d11d0273a1941793e372b948431f4a8170a687148714f2aee3e17824bfbeffc949d10
SSDEEP

1536:EnAHcBbLmdvduLd8IDiaP/8A68YaiIv2RwEYqlwi+BzdAeV9b5ADbyxxL:EGs8cd8eXlYairZYqMddH13L

Score

10^/10

neconyd discovery trojan

Malware Config

Extracted

Family

neconyd

http://ow5dirasuek.com/

http://mkkuei4kdsz.com/

http://lousta.net/

Signatures

Neconyd
Neconyd is a trojan written in C++.
trojan neconyd
Neconyd family
neconyd

Executes dropped EXE 6 IoCs

pid	Process
2508	omsecor.exe
3960	omsecor.exe
4320	omsecor.exe
1376	omsecor.exe
4448	omsecor.exe
4708	omsecor.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\omsecor.exe	omsecor.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4048 set thread context of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 2508 set thread context of 3960	2508	omsecor.exe	87
PID 4320 set thread context of 1376	4320	omsecor.exe	109
PID 4448 set thread context of 4708	4448	omsecor.exe	113

Program crash 4 IoCs

pid	pid_target	Process	procid_target
2916	2508	WerFault.exe	86
4160	4048	WerFault.exe	82
2128	4320	WerFault.exe	108
3900	4448	WerFault.exe	111

System Location Discovery: System Language Discovery 1 TTPs 8 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	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 4048 wrote to memory of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 4048 wrote to memory of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 4048 wrote to memory of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 4048 wrote to memory of 2028	4048	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	83
PID 2028 wrote to memory of 2508	2028	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	86
PID 2028 wrote to memory of 2508	2028	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	86
PID 2028 wrote to memory of 2508	2028	f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe	86
PID 2508 wrote to memory of 3960	2508	omsecor.exe	87
PID 2508 wrote to memory of 3960	2508	omsecor.exe	87
PID 2508 wrote to memory of 3960	2508	omsecor.exe	87
PID 2508 wrote to memory of 3960	2508	omsecor.exe	87
PID 2508 wrote to memory of 3960	2508	omsecor.exe	87
PID 3960 wrote to memory of 4320	3960	omsecor.exe	108
PID 3960 wrote to memory of 4320	3960	omsecor.exe	108
PID 3960 wrote to memory of 4320	3960	omsecor.exe	108
PID 4320 wrote to memory of 1376	4320	omsecor.exe	109
PID 4320 wrote to memory of 1376	4320	omsecor.exe	109
PID 4320 wrote to memory of 1376	4320	omsecor.exe	109
PID 4320 wrote to memory of 1376	4320	omsecor.exe	109
PID 4320 wrote to memory of 1376	4320	omsecor.exe	109
PID 1376 wrote to memory of 4448	1376	omsecor.exe	111
PID 1376 wrote to memory of 4448	1376	omsecor.exe	111
PID 1376 wrote to memory of 4448	1376	omsecor.exe	111
PID 4448 wrote to memory of 4708	4448	omsecor.exe	113
PID 4448 wrote to memory of 4708	4448	omsecor.exe	113
PID 4448 wrote to memory of 4708	4448	omsecor.exe	113
PID 4448 wrote to memory of 4708	4448	omsecor.exe	113
PID 4448 wrote to memory of 4708	4448	omsecor.exe	113

C:\Users\Admin\AppData\Local\Temp\f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
"C:\Users\Admin\AppData\Local\Temp\f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Users\Admin\AppData\Local\Temp\f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
  C:\Users\Admin\AppData\Local\Temp\f5e99fb8061cf5e593ecb45ce3c4cfe95e1a9e1a0f84814f41b69eaea99cc47eN.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Users\Admin\AppData\Roaming\omsecor.exe
    C:\Users\Admin\AppData\Roaming\omsecor.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2508
  - - C:\Users\Admin\AppData\Roaming\omsecor.exe
      C:\Users\Admin\AppData\Roaming\omsecor.exe
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3960
    - - C:\Windows\SysWOW64\omsecor.exe
        
        C:\Windows\System32\omsecor.exe
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4320
      - C:\Windows\SysWOW64\omsecor.exe
        
        C:\Windows\SysWOW64\omsecor.exe
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1376
        
        C:\Users\Admin\AppData\Roaming\omsecor.exe
        
        C:\Users\Admin\AppData\Roaming\omsecor.exe
        7⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4448
        
        C:\Users\Admin\AppData\Roaming\omsecor.exe
        
        C:\Users\Admin\AppData\Roaming\omsecor.exe
        8⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4708
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 268
        8⤵
        Program crash
        
        PID:3900
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4320 -s 292
        6⤵
        Program crash
        
        PID:2128
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 288
      4⤵
      Program crash
      PID:2916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 288
  2⤵
  - Program crash
  PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4048 -ip 4048
1⤵
PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2508 -ip 2508
1⤵
PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4320 -ip 4320
1⤵
PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4448 -ip 4448
1⤵
PID:1772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\omsecor.exe

Filesize
96KB

MD5
3e0e4d4d5fffc731d420fe61f20c769d

SHA1
515bb8221e0eedbad374f796485a74237ef0d473

SHA256
9bbfc9093910dfb2d76e43c3dded8110d582f3cd84a6045441cd6a339f1ebdab

SHA512
521f02a9b14fbdfe4285250463f5545cc63649cfd133d0a6dd77513b5e71a4314b5e89944c19b0436fe5fcffa2593ac76e7eb86e97d71210f17e5cccc556c63c

Download Submit
C:\Users\Admin\AppData\Roaming\omsecor.exe

Filesize
96KB

MD5
5380557f87dbdce5df6b891ee51953ca

SHA1
3bf0eb859e6cf123bb090297e8b99fb23580810a

SHA256
cab388cb4ff5ea21173816d2f7f694f83137c0b08ffd51dc20bc3b249173bac6

SHA512
729c20863b1f4dbdadff127e4706d4785e6ac721f50afeafb91ec14ff15a94430b11e225848c06df8af06253c808178ff56b70ac268cbe28c0b90bbfdce229ea

Download Submit
C:\Windows\SysWOW64\omsecor.exe

Filesize
96KB

MD5
5d28b1ce2414106be79e33cf44ae9326

SHA1
e10c58d9bf52c2ec05f08afc18e0f929ea4137d2

SHA256
20e048911584d5368855eb8befd13483f78bb58880d93d63f065af024e07bc1e

SHA512
86f9f1391f5ea33f91867e932f733ffcbed2fb0835360ca3318b553f1f747f6c45fe0c7b670a03a74f114e996b64719d1bc03b51af4018ba3f59ffa2be816505

Download Submit
memory/1376-42-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1376-38-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1376-37-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2028-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2028-3-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2028-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2028-10-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2508-11-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2508-17-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/3960-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-14-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-27-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-31-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-26-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-23-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3960-20-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4048-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4048-19-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4320-33-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4320-52-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4448-45-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4448-54-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4708-50-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4708-49-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4708-55-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download