neconyd | 143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1b

General

Target

143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe
Size

35KB
MD5

5652599febc626acdf447b183c0dca30
SHA1

1be7bbe1eb908704eaa1b8540740904be7842c0f
SHA256

143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1b
SHA512

b33ac534ac977837be737d90beb4a73aa240a223a33e9f365a9e60b5c559364f12c5b618a4d0794d6cb7f90c78518f0e51a96593e6f14e5ef9f2d45f6a4fe0d0
SSDEEP

768:K6vjVmakOElpmAsUA7DJHrhto2OsgwAPTUrpiEe7HpB9:J8Z0kA7FHlO2OwOTUtKjpB9

Score

10^/10

neconyd discovery trojan upx

Malware Config

Extracted

Family

neconyd

C2

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 3 IoCs

pid	Process
1604	omsecor.exe
2472	omsecor.exe
2660	omsecor.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 15 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/824-0-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/files/0x0009000000023c8f-4.dat	upx
behavioral2/memory/1604-5-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/824-6-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1604-7-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1604-10-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1604-13-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1604-14-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/files/0x0002000000021f51-17.dat	upx
behavioral2/memory/2472-18-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1604-21-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/files/0x0009000000023c8f-24.dat	upx
behavioral2/memory/2660-25-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/2472-27-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/2660-29-0x0000000000400000-0x000000000042D000-memory.dmp	upx

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	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omsecor.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 1604	824	143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe	82
PID 824 wrote to memory of 1604	824	143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe	82
PID 824 wrote to memory of 1604	824	143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe	82
PID 1604 wrote to memory of 2472	1604	omsecor.exe	92
PID 1604 wrote to memory of 2472	1604	omsecor.exe	92
PID 1604 wrote to memory of 2472	1604	omsecor.exe	92
PID 2472 wrote to memory of 2660	2472	omsecor.exe	93
PID 2472 wrote to memory of 2660	2472	omsecor.exe	93
PID 2472 wrote to memory of 2660	2472	omsecor.exe	93

C:\Users\Admin\AppData\Local\Temp\143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe
"C:\Users\Admin\AppData\Local\Temp\143020eb7c54cab3b7158a39100131aa7bbaf61620b720f4c6e1a7135a270d1bN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Roaming\omsecor.exe
  C:\Users\Admin\AppData\Roaming\omsecor.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\omsecor.exe
    C:\Windows\System32\omsecor.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2472
  - - C:\Users\Admin\AppData\Roaming\omsecor.exe
      C:\Users\Admin\AppData\Roaming\omsecor.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
35KB

MD5
b6c2b84550c2756a186546087b662ea6

SHA1
8e7b6f0edd05b4cf78c28758ada3638ac7890095

SHA256
db5d28650b4901e9d1d12b2073c72dbb69dbd1601de92c5eab644b977e573104

SHA512
42df274e8e1bf05a7ed0a723d766d16a78e7c451a6dab12f8d4bc5b2d248d3d081f8eb57e8e269ac4e63d68658961a6f59429318ef89693ebc7f43225d5e3982

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

Filesize
35KB

MD5
6f360fa092978d45071223abf32936e0

SHA1
a3b33663ceb6a31e062c94f68f9e4d56b1d54c19

SHA256
32b845bcf59cdc06926715dfa32560b92f5eb92e894e8d2787be628aba7b4add

SHA512
9b92373bd2e10776f83ae123cff8177d95db0d1c112f60b093e4fab3140b71aa312191ae6d18d622239913a2ebecbd26ba5d98eb33c14b5b9be77d2a50a41961

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

Filesize
35KB

MD5
4041fee3c1642bcf949a06aa85d9ceab

SHA1
b274a92a3c94434f76c3362befff184609a825bb

SHA256
7bf881fea5b1e25e96e9c3637aabd55aa9c15bb6eaa9e36b55f9a6bf69243ac9

SHA512
cdafd13a45375f7003b02aaea776ac59723ff1884406c04dba351f8fdbf64ca9c59eb67d8595469c7d77dc771477161afbf57604c4e6effb02fe0b954706502a

Download Submit
memory/824-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/824-6-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-13-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-10-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-14-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-7-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-21-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1604-5-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2472-18-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2472-27-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2660-25-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2660-29-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing