151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431

General

Target

151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe
Size

97KB
MD5

43b20472b7911a90ec60287bb9f80870
SHA1

6b98a64034117f7579b9920c8f15d3934621659a
SHA256

151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431
SHA512

73d1e83059ff672c8ae2297e2f3101a64acb4b1b4736cee1d728adb490260c2f5c1af0759c77a085ec90057007cb07eeaf6b0c04e4e047df660bef6f6b22edbd
SSDEEP

1536:Eo3S0ZwRyAEd0tA6O+taBpDmuZfHEXmOoPIVK+S:EoiqwRxO0tA6vGsa6cPIVK+S

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
20	1388	rundll32.exe
32	1388	rundll32.exe
33	1388	rundll32.exe
34	1388	rundll32.exe
48	1388	rundll32.exe
52	1388	rundll32.exe
56	1388	rundll32.exe
61	1388	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3356	xjyzg.exe

Executes dropped EXE 1 IoCs

pid	Process
3356	xjyzg.exe

Loads dropped DLL 1 IoCs

pid	Process
1388	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\jytye\\dvnwm.dll\",DoVirusScan"	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	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	xjyzg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.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
1628	cmd.exe
3360	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3360	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1388	rundll32.exe
1388	rundll32.exe
1388	rundll32.exe
1388	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1388	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3396	151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe
3356	xjyzg.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 1628	3396	151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe	89
PID 3396 wrote to memory of 1628	3396	151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe	89
PID 3396 wrote to memory of 1628	3396	151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe	89
PID 1628 wrote to memory of 3360	1628	cmd.exe	91
PID 1628 wrote to memory of 3360	1628	cmd.exe	91
PID 1628 wrote to memory of 3360	1628	cmd.exe	91
PID 1628 wrote to memory of 3356	1628	cmd.exe	92
PID 1628 wrote to memory of 3356	1628	cmd.exe	92
PID 1628 wrote to memory of 3356	1628	cmd.exe	92
PID 3356 wrote to memory of 1388	3356	xjyzg.exe	93
PID 3356 wrote to memory of 1388	3356	xjyzg.exe	93
PID 3356 wrote to memory of 1388	3356	xjyzg.exe	93

C:\Users\Admin\AppData\Local\Temp\151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe
"C:\Users\Admin\AppData\Local\Temp\151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\xjyzg.exe "C:\Users\Admin\AppData\Local\Temp\151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1628
- - 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:3360
- - \??\c:\xjyzg.exe
    c:\xjyzg.exe "C:\Users\Admin\AppData\Local\Temp\151c40010ec97eb6f6d242994b11807f0c625bdacb4e10ba84a6e2cb56155431.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3356
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\jytye\dvnwm.dll",DoVirusScan c:\xjyzg.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:1388

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4452,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4612 /prefetch:8
1⤵
PID:3240

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\xjyzg.exe

Filesize
98KB

MD5
a5ce52dcb52284c3f7f3ac58e152c6e6

SHA1
04da959160dff0c95f6c800e4289cb57891d385d

SHA256
cd0a319f6ec76194bb41642678d146c73dd275cf5a67340c895c112b8be4f5d8

SHA512
6b690de3b568fa92299a0187caaa87066dbe63d7c46fb4d430aa91f9eb9b1a335a0f8893cbdbfdcfcba0075fe257b94d5f060ca4cefd56d1f47f5fb57c31df1f

Download Submit
\??\c:\jytye\dvnwm.dll

Filesize
57KB

MD5
d44df003cd7b4ddc2b58f66d6af9894a

SHA1
165234b8432fa410af2e16a286fea52a664bcd46

SHA256
3f60f5b141fed70c9db160df1b34aa28c62d9aae480029bee14fbe1f635e07e8

SHA512
695266ae7c913291d060c9a7522283d9f113aa05f4105000ec5cd02fb0a102ec74aeee67ad5d660504c1d84c4d2b0eb36de1d551d1aa8bb3b8f06d4a5e509796

Download Submit
memory/1388-15-0x0000000010020000-0x0000000010030000-memory.dmp

Filesize
64KB

Download
memory/1388-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-11-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-13-0x0000000010020000-0x0000000010030000-memory.dmp

Filesize
64KB

Download
memory/1388-14-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-17-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-19-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-20-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-21-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1388-22-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3356-7-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3396-2-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3396-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads