268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511

General

Target

268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe
Size

160KB
MD5

046569015a20f20f7b650d90d74f09c1
SHA1

a46cc46e325c353726c362b47b75b1caee0b0b1a
SHA256

268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511
SHA512

cd9338b069e00eb2f7273586efa7bac109f32fc36156e3232c14f02120e9ecbd0126155801e034c7ee2be849e3aeba176df0d514a171d3e05e31fa16c643ec6b
SSDEEP

1536:MRiAXaKD5gixq7OstjzjW6ZdjtETzR77i11GAbRp0BGiEA0O0o:6iAXaKD7Ia6KTdNAbzSGiN0OJ

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
24	4928	rundll32.exe
31	4928	rundll32.exe
32	4928	rundll32.exe
33	4928	rundll32.exe
46	4928	rundll32.exe
47	4928	rundll32.exe
55	4928	rundll32.exe
70	4928	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2016	zvzok.exe

Executes dropped EXE 1 IoCs

pid	Process
2016	zvzok.exe

Loads dropped DLL 1 IoCs

pid	Process
4928	rundll32.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\mgsts\\evipwtu.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)	\??\t:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\x:	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zvzok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.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
3696	cmd.exe
1040	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
1040	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4928	rundll32.exe
4928	rundll32.exe
4928	rundll32.exe
4928	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4928	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
496	268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe
2016	zvzok.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 496 wrote to memory of 3696	496	268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe	86
PID 496 wrote to memory of 3696	496	268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe	86
PID 496 wrote to memory of 3696	496	268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe	86
PID 3696 wrote to memory of 1040	3696	cmd.exe	88
PID 3696 wrote to memory of 1040	3696	cmd.exe	88
PID 3696 wrote to memory of 1040	3696	cmd.exe	88
PID 3696 wrote to memory of 2016	3696	cmd.exe	90
PID 3696 wrote to memory of 2016	3696	cmd.exe	90
PID 3696 wrote to memory of 2016	3696	cmd.exe	90
PID 2016 wrote to memory of 4928	2016	zvzok.exe	91
PID 2016 wrote to memory of 4928	2016	zvzok.exe	91
PID 2016 wrote to memory of 4928	2016	zvzok.exe	91

C:\Users\Admin\AppData\Local\Temp\268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe
"C:\Users\Admin\AppData\Local\Temp\268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\zvzok.exe "C:\Users\Admin\AppData\Local\Temp\268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3696
- - 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:1040
- - \??\c:\zvzok.exe
    c:\zvzok.exe "C:\Users\Admin\AppData\Local\Temp\268f0b80587f93f6f62189837f60701bcb2a287b9c9cb57816c6ba39b60f7511.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2016
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\mgsts\evipwtu.dll",GetWindowClass c:\zvzok.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:4928

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

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Downloads

C:\zvzok.exe

Filesize
160KB

MD5
751e04d693ddd990d9dbb1492918841c

SHA1
430cef3d244ba5d36595e9a16bd7498486db4677

SHA256
8d8cd51b8750dd8d07b7daf4903d04c7865eee7d699f7157173cb61406c82d3d

SHA512
3c0d1adf1b961d61b6137f71669ed93c5db601cfeec5d099ccdeb549be1af0f74745b4ab09468b406a99e191c614c93c887aa73abf0652c71fa409a9747826f0

Download Submit
\??\c:\mgsts\evipwtu.dll

Filesize
63KB

MD5
bec93912524f50c6f7c943716c7ef02b

SHA1
69ba8f1dd5a7d6cd94d688c691406cbd54be4486

SHA256
032570414587af2303431e8db5d5f4223e0147f4b63a2160b97d9a6ea531bd81

SHA512
41fb8970e9007c789227740e81a483bda806470ce25476589a3dfceddaaa60b20d890c37b56f8be83defb2a5b774dbd6c2026fc259884e8acf2971b06041f6a6

Download Submit
memory/496-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/496-2-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2016-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4928-10-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4928-11-0x0000000002AA0000-0x0000000002AA2000-memory.dmp

Filesize
8KB

Download
memory/4928-12-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4928-13-0x0000000002AA0000-0x0000000002AA2000-memory.dmp

Filesize
8KB

Download
memory/4928-15-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4928-16-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4928-17-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads