719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76

General

Target

719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe
Size

136KB
MD5

8be9a33343c6a2fbf639c13f46b20b20
SHA1

630f21085d77edf2fbdb745ee3576ee8154fe444
SHA256

719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76
SHA512

18e06d22e705ca460c1c0063f4e5ba20d01d27a6ffc4869fc646601aced4f973bc35436f977a13d352fd9b8addf9487e40297239bb992ba39229d5f835881d7f
SSDEEP

1536:+fxvtgixq7OstjzjW6ZdjtETzR77i11GAbRp0BGiEA0O0o:+HIa6KTdNAbzSGiN0OJ

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
15	4680	rundll32.exe
22	4680	rundll32.exe
23	4680	rundll32.exe
24	4680	rundll32.exe
37	4680	rundll32.exe
38	4680	rundll32.exe
41	4680	rundll32.exe
47	4680	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4520	nqyug.exe

Executes dropped EXE 1 IoCs

pid	Process
4520	nqyug.exe

Loads dropped DLL 1 IoCs

pid	Process
4680	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ezhcn\\wrval.dll\",GetWindowClass"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nqyug.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4128	cmd.exe
4928	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4928	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4680	rundll32.exe
4680	rundll32.exe
4680	rundll32.exe
4680	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4680	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1180	719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe
4520	nqyug.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 4128	1180	719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe	82
PID 1180 wrote to memory of 4128	1180	719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe	82
PID 1180 wrote to memory of 4128	1180	719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe	82
PID 4128 wrote to memory of 4928	4128	cmd.exe	84
PID 4128 wrote to memory of 4928	4128	cmd.exe	84
PID 4128 wrote to memory of 4928	4128	cmd.exe	84
PID 4128 wrote to memory of 4520	4128	cmd.exe	85
PID 4128 wrote to memory of 4520	4128	cmd.exe	85
PID 4128 wrote to memory of 4520	4128	cmd.exe	85
PID 4520 wrote to memory of 4680	4520	nqyug.exe	86
PID 4520 wrote to memory of 4680	4520	nqyug.exe	86
PID 4520 wrote to memory of 4680	4520	nqyug.exe	86

C:\Users\Admin\AppData\Local\Temp\719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe
"C:\Users\Admin\AppData\Local\Temp\719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\nqyug.exe "C:\Users\Admin\AppData\Local\Temp\719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4128
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4928
- - \??\c:\nqyug.exe
    c:\nqyug.exe "C:\Users\Admin\AppData\Local\Temp\719eb6418b8fe2371c22761f5a0e07cedc30e6f72d53da44a8220c67d27a3d76N.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4520
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ezhcn\wrval.dll",GetWindowClass c:\nqyug.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\nqyug.exe

Filesize
137KB

MD5
5daa0a482ccd1ee229893d68cba72205

SHA1
f6fdf935135f7de0f49afae60ce57c858395db59

SHA256
5e94fb13a24d10b0d941fb3f4e985898c328e160db20d5ffe4dd66b3fec0465b

SHA512
042b2d92c2b145f79e832837ede2453cf786add500f9c6064b08ae53887ca4f2bc2ab941ce0bfffe16b4fab93de73829fd85c8d50aff229a07b2c3aefcc69608

Download Submit
\??\c:\ezhcn\wrval.dll

Filesize
63KB

MD5
bec93912524f50c6f7c943716c7ef02b

SHA1
69ba8f1dd5a7d6cd94d688c691406cbd54be4486

SHA256
032570414587af2303431e8db5d5f4223e0147f4b63a2160b97d9a6ea531bd81

SHA512
41fb8970e9007c789227740e81a483bda806470ce25476589a3dfceddaaa60b20d890c37b56f8be83defb2a5b774dbd6c2026fc259884e8acf2971b06041f6a6

Download Submit
memory/1180-0-0x0000000000400000-0x0000000000425400-memory.dmp

Filesize
149KB

Download
memory/1180-2-0x0000000000400000-0x0000000000425400-memory.dmp

Filesize
149KB

Download
memory/4520-8-0x0000000000400000-0x0000000000425400-memory.dmp

Filesize
149KB

Download
memory/4680-12-0x0000000001390000-0x0000000001392000-memory.dmp

Filesize
8KB

Download
memory/4680-11-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4680-13-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4680-14-0x0000000001390000-0x0000000001392000-memory.dmp

Filesize
8KB

Download
memory/4680-16-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4680-18-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads