17b4d01d32c64a62e36496829da323fe308437048ca87143de7365fabd4194fd

Analysis

max time kernel
52s
max time network
360s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:25

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General

Target

DUMP_00A10000-00A1D000.exe.ViR.exe
Size

52KB
MD5

6152709e741c4d5a5d793d35817b4c3d
SHA1

05ae9c76f8f85ad2247c06d26a88bbbcfff4d62e
SHA256

2c4c8066a1a7dfdf42c57ff4f9016f1ba05bcb004ff8b0ffc0989165d2ad30e2
SHA512

1e5ebd53ac942b0f06f759f936efebeeb9a74062647cd978d5112720f772f607b12ee20c02ab838104a7a947fef2fde79b0db944286d8daf2e6e6d16e10b9390
SSDEEP

768:UR/FcohAQFBY4JzKNkN3QZ0gGINlVOWcm:U1PhAQztJWNeCVOWc

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2696 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

DirectX.exe

pid process

2676 DirectX.exe
Loads dropped DLL 2 IoCs

Processes:

DUMP_00A10000-00A1D000.exe.ViR.exe

pid process

800 DUMP_00A10000-00A1D000.exe.ViR.exe
800 DUMP_00A10000-00A1D000.exe.ViR.exe

pid	process
2696	cmd.exe

pid	process
2676	DirectX.exe

pid	process
800	DUMP_00A10000-00A1D000.exe.ViR.exe
800	DUMP_00A10000-00A1D000.exe.ViR.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

DirectX.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DirectX = "C:\\Users\\Admin\\AppData\\Roaming\\DirectX.exe"	DirectX.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\DirectX = "C:\\Users\\Admin\\AppData\\Roaming\\DirectX.exe"	DirectX.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 checkip.dyndns.org

flow	ioc
2	checkip.dyndns.org

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/800-0-0x0000000000400000-0x0000000000419000-memory.dmp	upx
\Users\Admin\AppData\Roaming\DirectX.exe	upx
behavioral1/memory/2676-11-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral1/memory/800-21-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral1/memory/2676-24-0x0000000000400000-0x0000000000419000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

cmd.exetaskkill.exeDUMP_00A10000-00A1D000.exe.ViR.exeDirectX.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DUMP_00A10000-00A1D000.exe.ViR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DirectX.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2684 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2684 taskkill.exe

pid	process
2684	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2684	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DUMP_00A10000-00A1D000.exe.ViR.execmd.exe

description	pid	process	target process
PID 800 wrote to memory of 2676	800	DUMP_00A10000-00A1D000.exe.ViR.exe	DirectX.exe
PID 800 wrote to memory of 2676	800	DUMP_00A10000-00A1D000.exe.ViR.exe	DirectX.exe
PID 800 wrote to memory of 2676	800	DUMP_00A10000-00A1D000.exe.ViR.exe	DirectX.exe
PID 800 wrote to memory of 2676	800	DUMP_00A10000-00A1D000.exe.ViR.exe	DirectX.exe
PID 800 wrote to memory of 2696	800	DUMP_00A10000-00A1D000.exe.ViR.exe	cmd.exe
PID 800 wrote to memory of 2696	800	DUMP_00A10000-00A1D000.exe.ViR.exe	cmd.exe
PID 800 wrote to memory of 2696	800	DUMP_00A10000-00A1D000.exe.ViR.exe	cmd.exe
PID 800 wrote to memory of 2696	800	DUMP_00A10000-00A1D000.exe.ViR.exe	cmd.exe
PID 2696 wrote to memory of 2684	2696	cmd.exe	taskkill.exe
PID 2696 wrote to memory of 2684	2696	cmd.exe	taskkill.exe
PID 2696 wrote to memory of 2684	2696	cmd.exe	taskkill.exe
PID 2696 wrote to memory of 2684	2696	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\DUMP_00A10000-00A1D000.exe.ViR.exe
"C:\Users\Admin\AppData\Local\Temp\DUMP_00A10000-00A1D000.exe.ViR.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Roaming\DirectX.exe
  "C:\Users\Admin\AppData\Roaming\DirectX.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\cmd.exe
  cmd /c aaa.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im DUMP_00A10000-00A1D000.exe.ViR.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2684

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\aaa.bat

Filesize
149B

MD5
3e59a76bf84cb9d1a8585c17cda9b949

SHA1
60fdb9e6bf1154aad3a332ad5657a9d62a5be73a

SHA256
21060b57f9392d62259c274427c4bb6caf19b228716d691f44a26958b3620d5f

SHA512
01bd3726c30e304dd712d302a9081052b50a85a28c586458b691e748b1867e85fa679e58db304793a18f554b8a8c17af00bd38e795d3fdb6b0f5a873f80b5303

Download Submit
\Users\Admin\AppData\Roaming\DirectX.exe

Filesize
52KB

MD5
6152709e741c4d5a5d793d35817b4c3d

SHA1
05ae9c76f8f85ad2247c06d26a88bbbcfff4d62e

SHA256
2c4c8066a1a7dfdf42c57ff4f9016f1ba05bcb004ff8b0ffc0989165d2ad30e2

SHA512
1e5ebd53ac942b0f06f759f936efebeeb9a74062647cd978d5112720f772f607b12ee20c02ab838104a7a947fef2fde79b0db944286d8daf2e6e6d16e10b9390

Download Submit
memory/800-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/800-21-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2676-11-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2676-24-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download