0155e34c5ad2f5661c5ebc2c6351ac2afe95246bf659e8cd0b0e1a7bffabc5de

Analysis

max time kernel
140s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-10-2024 12:33

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General

Target

bspcodecdl.exe
Size

544KB
MD5

0965e5e8afc4c984474b5b1ad69b28fd
SHA1

36c8c6365b1398f4ed865be894caac02148ca4a4
SHA256

3e08054cb9c02957425dacd7bf208ad48761c3e6b5ec273420ab8255188a90e2
SHA512

20bd03bdc0ce545deaf27241f1cf389d9337fc8bb32d24b9f3ffda5740c0a981665f2119c22e31f76489b3cec8399326dfed79cd6e0c2d97eba4b5838884aa2e
SSDEEP

12288:2Pb+K5vJtsAj8fsZlm0hAeRTitBsq81NPpw6Yr2Y4VkqD1o:Ubf5hKupLfRTitBsq85w3rcl5o

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral31/memory/2220-0-0x0000000000400000-0x000000000054F000-memory.dmp	upx
behavioral31/memory/2220-2-0x00000000036F0000-0x0000000003CEE000-memory.dmp	upx
behavioral31/memory/2732-7-0x0000000000400000-0x00000000009FE000-memory.dmp	upx
behavioral31/memory/2732-6-0x0000000000400000-0x00000000009FE000-memory.dmp	upx
behavioral31/memory/2732-3-0x0000000000400000-0x00000000009FE000-memory.dmp	upx
behavioral31/memory/2220-8-0x0000000000400000-0x000000000054F000-memory.dmp	upx
behavioral31/memory/2220-11-0x0000000000400000-0x000000000054F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 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	bspcodecdl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bsplayer.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\BsCdcdlcteke-tmpkey	bspcodecdl.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\BSCDCDLCTEKE-TMPKEY	bspcodecdl.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe
2732	bsplayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2220	bspcodecdl.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2220	bspcodecdl.exe
Token: SeSecurityPrivilege	2220	bspcodecdl.exe
Token: SeLoadDriverPrivilege	2220	bspcodecdl.exe
Token: SeSystemProfilePrivilege	2220	bspcodecdl.exe
Token: SeSystemtimePrivilege	2220	bspcodecdl.exe
Token: SeProfSingleProcessPrivilege	2220	bspcodecdl.exe
Token: SeIncBasePriorityPrivilege	2220	bspcodecdl.exe
Token: SeCreatePagefilePrivilege	2220	bspcodecdl.exe
Token: SeShutdownPrivilege	2220	bspcodecdl.exe
Token: SeDebugPrivilege	2220	bspcodecdl.exe
Token: SeSystemEnvironmentPrivilege	2220	bspcodecdl.exe
Token: SeRemoteShutdownPrivilege	2220	bspcodecdl.exe
Token: SeUndockPrivilege	2220	bspcodecdl.exe
Token: SeManageVolumePrivilege	2220	bspcodecdl.exe
Token: 33	2220	bspcodecdl.exe
Token: 34	2220	bspcodecdl.exe
Token: 35	2220	bspcodecdl.exe
Token: SeIncreaseQuotaPrivilege	2732	bsplayer.exe
Token: SeSecurityPrivilege	2732	bsplayer.exe
Token: SeLoadDriverPrivilege	2732	bsplayer.exe
Token: SeSystemProfilePrivilege	2732	bsplayer.exe
Token: SeSystemtimePrivilege	2732	bsplayer.exe
Token: SeProfSingleProcessPrivilege	2732	bsplayer.exe
Token: SeIncBasePriorityPrivilege	2732	bsplayer.exe
Token: SeCreatePagefilePrivilege	2732	bsplayer.exe
Token: SeShutdownPrivilege	2732	bsplayer.exe
Token: SeDebugPrivilege	2732	bsplayer.exe
Token: SeSystemEnvironmentPrivilege	2732	bsplayer.exe
Token: SeRemoteShutdownPrivilege	2732	bsplayer.exe
Token: SeUndockPrivilege	2732	bsplayer.exe
Token: SeManageVolumePrivilege	2732	bsplayer.exe
Token: 33	2732	bsplayer.exe
Token: 34	2732	bsplayer.exe
Token: 35	2732	bsplayer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2220	bspcodecdl.exe
2732	bsplayer.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2732	2220	bspcodecdl.exe	30
PID 2220 wrote to memory of 2732	2220	bspcodecdl.exe	30
PID 2220 wrote to memory of 2732	2220	bspcodecdl.exe	30
PID 2220 wrote to memory of 2732	2220	bspcodecdl.exe	30

C:\Users\Admin\AppData\Local\Temp\bspcodecdl.exe
"C:\Users\Admin\AppData\Local\Temp\bspcodecdl.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\bsplayer.exe
  C:\Users\Admin\AppData\Local\Temp\bsplayer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2220-0-0x0000000000400000-0x000000000054F000-memory.dmp

Filesize
1.3MB

Download
memory/2220-1-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2220-2-0x00000000036F0000-0x0000000003CEE000-memory.dmp

Filesize
6.0MB

Download
memory/2220-8-0x0000000000400000-0x000000000054F000-memory.dmp

Filesize
1.3MB

Download
memory/2220-9-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2220-10-0x00000000036F0000-0x0000000003CEE000-memory.dmp

Filesize
6.0MB

Download
memory/2220-11-0x0000000000400000-0x000000000054F000-memory.dmp

Filesize
1.3MB

Download
memory/2732-4-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2732-7-0x0000000000400000-0x00000000009FE000-memory.dmp

Filesize
6.0MB

Download
memory/2732-6-0x0000000000400000-0x00000000009FE000-memory.dmp

Filesize
6.0MB

Download
memory/2732-3-0x0000000000400000-0x00000000009FE000-memory.dmp

Filesize
6.0MB

Download