df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 18:35

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General

Target

df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe
Size

412KB
MD5

f8ee0f3e2f454fa5080eef3f6acf4a95
SHA1

1c03cb1a47a6d2cdfa4f174edd27855d7ca5f748
SHA256

df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8
SHA512

2615a03799723ecbdc0df8e2168ee7d8f5480836bff8d8e1e038841cde2e9d0c35c84a76bfb865e518ed2736d1dc1d581fd50230eefd3d6a30f6750816ab6632
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4G:gtRfJcNYFNm8UhlZGseG

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

flow	pid	Process
4	1684	rundll32.exe
5	1684	rundll32.exe
6	1684	rundll32.exe
7	1684	rundll32.exe
8	1684	rundll32.exe
9	1684	rundll32.exe
10	1684	rundll32.exe
11	1684	rundll32.exe
13	1684	rundll32.exe
14	1684	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2820	xtmso.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	xtmso.exe

Loads dropped DLL 6 IoCs

pid	Process
2112	cmd.exe
2112	cmd.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\ealbr\\votoo.dll\",Verify"	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)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1684	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ealbr	xtmso.exe
File created	\??\c:\Program Files\ealbr\votoo.dll	xtmso.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	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe
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	xtmso.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
2112	cmd.exe
2548	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
2548	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe
1684	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1752	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe
2820	xtmso.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2112	1752	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe	30
PID 1752 wrote to memory of 2112	1752	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe	30
PID 1752 wrote to memory of 2112	1752	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe	30
PID 1752 wrote to memory of 2112	1752	df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe	30
PID 2112 wrote to memory of 2548	2112	cmd.exe	32
PID 2112 wrote to memory of 2548	2112	cmd.exe	32
PID 2112 wrote to memory of 2548	2112	cmd.exe	32
PID 2112 wrote to memory of 2548	2112	cmd.exe	32
PID 2112 wrote to memory of 2820	2112	cmd.exe	33
PID 2112 wrote to memory of 2820	2112	cmd.exe	33
PID 2112 wrote to memory of 2820	2112	cmd.exe	33
PID 2112 wrote to memory of 2820	2112	cmd.exe	33
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34
PID 2820 wrote to memory of 1684	2820	xtmso.exe	34

C:\Users\Admin\AppData\Local\Temp\df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe
"C:\Users\Admin\AppData\Local\Temp\df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xtmso.exe "C:\Users\Admin\AppData\Local\Temp\df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - 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:2548
- - C:\Users\Admin\AppData\Local\Temp\xtmso.exe
    C:\Users\Admin\AppData\Local\Temp\\xtmso.exe "C:\Users\Admin\AppData\Local\Temp\df2c4531d003c74654cc3c0791925cc4f06fda365074fc4314f0bfe4ff0d97b8.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\ealbr\votoo.dll",Verify C:\Users\Admin\AppData\Local\Temp\xtmso.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)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\Program Files\ealbr\votoo.dll

Filesize
228KB

MD5
8b016cd9f10f213f7a28d146ee0dce4e

SHA1
8bd146223014e0137c34e7a84d1119e0fdaec183

SHA256
238abc99826354c8b1765a31a39751b896a681516940b0f719f4a7b0d487db94

SHA512
c7db28a1276b0fd01f7eae7791e2342b6d16aa518601e9e5073be68e7a062ac2d622b955c228a25dae110ba8a20260dc5839686d5e57d0bdf3b1bc8dc3000e9d

Download Submit
\Users\Admin\AppData\Local\Temp\xtmso.exe

Filesize
412KB

MD5
6097433933b34f8d051b70d7b9a6ad3c

SHA1
b9403371d907b6128f90c9180c075439ea7c9b19

SHA256
fbd957296c8ffedb304dfe2ead8359d58395ec7462dd99aeb09feac5ff318721

SHA512
b05dca1ea364ef51463aa136317ccf965cde221d7b4f00447135f4542ce6694d1f80025691837350053b2510bb0a4c80cd79f653d7c94313f4bba12942eaf9fc

Download Submit
memory/1684-14-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/1684-15-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/1684-17-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/1752-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1752-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2820-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download