0d7089ccb61ac60d1923f2a511bb506f5436482c5245b3a281a93a850363bbdf

Analysis

max time kernel
119s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
22/07/2024, 10:39

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General

Target

9f6655077a1757251317493f472eff90N.exe
Size

117KB
MD5

9f6655077a1757251317493f472eff90
SHA1

4e33de0388d6f21dce554b92c0ba697c01f45bad
SHA256

0d7089ccb61ac60d1923f2a511bb506f5436482c5245b3a281a93a850363bbdf
SHA512

a5235bd28543ec3efa83955980601be13c1796e8d979917da1d5167a362bb7ff6e8e45dbea01658cf47de4aec07e065869e62e9aca51b2508472d296bc24467e
SSDEEP

3072:EagwS1Ut+KNPJI1F3Md55keTZwcM2I38QXy:vUGPJKF3Md55ZTZwz38QX

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
25	1152	rundll32.exe
35	1152	rundll32.exe
36	1152	rundll32.exe
63	1152	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a00000002328a-11.dat	acprotect

Deletes itself 1 IoCs

pid	Process
2424	owbsgs.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	owbsgs.exe

Loads dropped DLL 1 IoCs

pid	Process
1152	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-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\wbcbfo\\rlbco.lcr\",LoadXML"	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)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	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)	\??\j:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	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

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

Kills process with taskkill 1 IoCs

evasion

pid	Process
2448	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4320	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe
1152	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1152	rundll32.exe
Token: SeDebugPrivilege	2448	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3476	9f6655077a1757251317493f472eff90N.exe
2424	owbsgs.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 3332	3476	9f6655077a1757251317493f472eff90N.exe	87
PID 3476 wrote to memory of 3332	3476	9f6655077a1757251317493f472eff90N.exe	87
PID 3476 wrote to memory of 3332	3476	9f6655077a1757251317493f472eff90N.exe	87
PID 3332 wrote to memory of 4320	3332	cmd.exe	89
PID 3332 wrote to memory of 4320	3332	cmd.exe	89
PID 3332 wrote to memory of 4320	3332	cmd.exe	89
PID 3332 wrote to memory of 2424	3332	cmd.exe	93
PID 3332 wrote to memory of 2424	3332	cmd.exe	93
PID 3332 wrote to memory of 2424	3332	cmd.exe	93
PID 2424 wrote to memory of 1152	2424	owbsgs.exe	94
PID 2424 wrote to memory of 1152	2424	owbsgs.exe	94
PID 2424 wrote to memory of 1152	2424	owbsgs.exe	94
PID 1152 wrote to memory of 2448	1152	rundll32.exe	95
PID 1152 wrote to memory of 2448	1152	rundll32.exe	95
PID 1152 wrote to memory of 2448	1152	rundll32.exe	95

C:\Users\Admin\AppData\Local\Temp\9f6655077a1757251317493f472eff90N.exe
"C:\Users\Admin\AppData\Local\Temp\9f6655077a1757251317493f472eff90N.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\owbsgs.exe "C:\Users\Admin\AppData\Local\Temp\9f6655077a1757251317493f472eff90N.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3332
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:4320
- - C:\Users\Admin\AppData\Local\Temp\owbsgs.exe
    C:\Users\Admin\AppData\Local\Temp\\owbsgs.exe "C:\Users\Admin\AppData\Local\Temp\9f6655077a1757251317493f472eff90N.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2424
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\wbcbfo\rlbco.lcr",LoadXML C:\Users\Admin\AppData\Local\Temp\owbsgs.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)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1152
    - - \??\c:\windows\SysWOW64\taskkill.exe
        
        taskkill /f /im attrib.exe
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2448

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

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\owbsgs.exe

Filesize
117KB

MD5
e5030ba5c29f4b1a76f9874525ed16c0

SHA1
e82bf244bfe73fc308ee871c73412608b1fb48cc

SHA256
c1dc3bea34b7767358aca9980995a9e8bd7b360bf502e76aa6c4a2fcd43e49b1

SHA512
84bc74be3fdd1cd4a14f6549b2bfc10fbbf8a9c6ac29e737669b0a6d654b7f2ddd6d95af9ce0f3df7ee54b954ff6ea4d293f844e4abea12a72c1d88fbcd48ffb

Download Submit
\??\c:\wbcbfo\rlbco.lcr

Filesize
68KB

MD5
230bd5cd04a5f8ea04af339783d1bf58

SHA1
803b2400b5e2146853dca3908e58f96bd554f1e0

SHA256
7590edd94bd18449a3432a0054cf3e6ed53f8bd01202e1706f82f83056c0f029

SHA512
9500742bc2798e94e78ae24736b51c5294e4aecce5c1e3b77151fdf04fc7ac0da8eda8be5a6a9c5cc44308eb2ea6c40902f6b4ab1d0997ece103e83a97ab0729

Download Submit
memory/1152-13-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/1152-14-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/1152-16-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/1152-18-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/2424-8-0x0000000000940000-0x0000000000972000-memory.dmp

Filesize
200KB

Download
memory/2424-7-0x0000000000400000-0x000000000043C200-memory.dmp

Filesize
240KB

Download
memory/2424-10-0x0000000000400000-0x000000000043C200-memory.dmp

Filesize
240KB

Download
memory/3476-0-0x0000000000400000-0x000000000043C200-memory.dmp

Filesize
240KB

Download
memory/3476-1-0x0000000000A80000-0x0000000000AB2000-memory.dmp

Filesize
200KB

Download
memory/3476-3-0x0000000000400000-0x000000000043C200-memory.dmp

Filesize
240KB

Download