3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964

General

Target

3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe
Size

171KB
MD5

c46894c8d773ea26fc91e52bddbe6320
SHA1

1cd84a1c2f67cce482a9a4d416e66294cf8d1d45
SHA256

3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964
SHA512

9b4625fb946160edfe57650279dec6c5bab26344a2c49fab5206b6462d2f1b5c96ed4adbd92ed705886845ed182c25581e965d4583a46e20359bf581d94bd58d
SSDEEP

3072:Gnr29ph7jXsmeK6ncKJQALI34b/Vkx7Ek8TAoLefHxzt48SG5KRXhN5FKMgI:W2XtjXmK6cAQJNElb6dPURN5Fpg

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1176	rkdbb.exe

Executes dropped EXE 2 IoCs

pid	Process
1176	rkdbb.exe
1696	rgbojdxp.exe

Loads dropped DLL 1 IoCs

pid	Process
1696	rgbojdxp.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\ProMark = "c:\\Program Files\\oszvsedol\\rgbojdxp.exe \"c:\\Program Files\\oszvsedol\\rgbojdxp.dll\",Clean"	rgbojdxp.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)	\??\g:	rgbojdxp.exe
File opened (read-only)	\??\i:	rgbojdxp.exe
File opened (read-only)	\??\q:	rgbojdxp.exe
File opened (read-only)	\??\a:	rgbojdxp.exe
File opened (read-only)	\??\j:	rgbojdxp.exe
File opened (read-only)	\??\n:	rgbojdxp.exe
File opened (read-only)	\??\u:	rgbojdxp.exe
File opened (read-only)	\??\w:	rgbojdxp.exe
File opened (read-only)	\??\y:	rgbojdxp.exe
File opened (read-only)	\??\k:	rgbojdxp.exe
File opened (read-only)	\??\m:	rgbojdxp.exe
File opened (read-only)	\??\s:	rgbojdxp.exe
File opened (read-only)	\??\t:	rgbojdxp.exe
File opened (read-only)	\??\v:	rgbojdxp.exe
File opened (read-only)	\??\r:	rgbojdxp.exe
File opened (read-only)	\??\x:	rgbojdxp.exe
File opened (read-only)	\??\b:	rgbojdxp.exe
File opened (read-only)	\??\e:	rgbojdxp.exe
File opened (read-only)	\??\h:	rgbojdxp.exe
File opened (read-only)	\??\l:	rgbojdxp.exe
File opened (read-only)	\??\o:	rgbojdxp.exe
File opened (read-only)	\??\p:	rgbojdxp.exe
File opened (read-only)	\??\z:	rgbojdxp.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	rgbojdxp.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\oszvsedol	rkdbb.exe
File created	\??\c:\Program Files\oszvsedol\rgbojdxp.dll	rkdbb.exe
File created	\??\c:\Program Files\oszvsedol\rgbojdxp.exe	rkdbb.exe
File opened for modification	\??\c:\Program Files\oszvsedol\rgbojdxp.exe	rkdbb.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	rgbojdxp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.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	rkdbb.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
2156	cmd.exe
1744	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	rgbojdxp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rgbojdxp.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1744	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1696	rgbojdxp.exe
1696	rgbojdxp.exe
1696	rgbojdxp.exe
1696	rgbojdxp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1696	rgbojdxp.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4824	3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe
1176	rkdbb.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 2156	4824	3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe	82
PID 4824 wrote to memory of 2156	4824	3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe	82
PID 4824 wrote to memory of 2156	4824	3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe	82
PID 2156 wrote to memory of 1744	2156	cmd.exe	84
PID 2156 wrote to memory of 1744	2156	cmd.exe	84
PID 2156 wrote to memory of 1744	2156	cmd.exe	84
PID 2156 wrote to memory of 1176	2156	cmd.exe	85
PID 2156 wrote to memory of 1176	2156	cmd.exe	85
PID 2156 wrote to memory of 1176	2156	cmd.exe	85
PID 1176 wrote to memory of 1696	1176	rkdbb.exe	86
PID 1176 wrote to memory of 1696	1176	rkdbb.exe	86
PID 1176 wrote to memory of 1696	1176	rkdbb.exe	86

C:\Users\Admin\AppData\Local\Temp\3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe
"C:\Users\Admin\AppData\Local\Temp\3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rkdbb.exe "C:\Users\Admin\AppData\Local\Temp\3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2156
- - 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:1744
- - C:\Users\Admin\AppData\Local\Temp\rkdbb.exe
    C:\Users\Admin\AppData\Local\Temp\\rkdbb.exe "C:\Users\Admin\AppData\Local\Temp\3340354029daa5b9d7c6cf70ba07a9f713544e02beb1efa2980056b914e16964N.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:1176
  - - \??\c:\Program Files\oszvsedol\rgbojdxp.exe
      "c:\Program Files\oszvsedol\rgbojdxp.exe" "c:\Program Files\oszvsedol\rgbojdxp.dll",Clean C:\Users\Admin\AppData\Local\Temp\rkdbb.exe
      4⤵
      Executes dropped EXE
      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:1696

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:\Program Files\oszvsedol\rgbojdxp.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Users\Admin\AppData\Local\Temp\rkdbb.exe

Filesize
171KB

MD5
4aa8a7ca800f6ab6eb37d298e1f1a5e3

SHA1
48074fae0beb4169fec402942355bb09ec5cc996

SHA256
da9726c3d21bb500c67fd93051199b9a8a0ccffbb28e72a29eb1f734cfa3a456

SHA512
d1250bb52d6cbaefaf6cd6d79d4207d9856db39068a223de3ca8ba21214ac7a28c0549bddee11dea35f99fad954f3d3343115d1719ff2a8085fb3dd538ee2674

Download Submit
\??\c:\Program Files\oszvsedol\rgbojdxp.dll

Filesize
160KB

MD5
e4fa293e2492130eb05a0bd5892d7adf

SHA1
a1079a685e117718ee2fb9707abeecc065c18d70

SHA256
df37f0795b3114d43ed3f8add38f79cf6b3318968d910bbb0915f057c6a18953

SHA512
ba76ede42f981b06728de51dcc3b1a04d48775d52ecdf3ad6b4a3a61c7e570926a723f30ccc1ac85cf9411405460d911fe79f70fe973c5766780152d7a270422

Download Submit
memory/1176-12-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1696-16-0x0000000010000000-0x0000000010058000-memory.dmp

Filesize
352KB

Download
memory/1696-17-0x0000000010000000-0x0000000010058000-memory.dmp

Filesize
352KB

Download
memory/1696-19-0x0000000010000000-0x0000000010058000-memory.dmp

Filesize
352KB

Download
memory/4824-0-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4824-1-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/4824-3-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads