17b4d01d32c64a62e36496829da323fe308437048ca87143de7365fabd4194fd

Analysis

max time kernel
66s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/11/2024, 03:36

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General

Target
DUMP_00A10000-00A1D000.exe.ViR.exe
Size 52KB
Sample241122-d6bprstne1
SHA256 2c4c8066a1a7dfdf42c57ff4f9016f1ba05bcb004ff8b0ffc0989165d2ad30e2
MD5 6152709e741c4d5a5d793d35817b4c3d
SHA1 05ae9c76f8f85ad2247c06d26a88bbbcfff4d62e
SHA512 1e5ebd53ac942b0f06f759f936efebeeb9a74062647cd978d5112720f772f607b12ee20c02ab838104a7a947fef2fde79b0db944286d8daf2e6e6d16e10b9390
SSDEEP 768:UR/FcohAQFBY4JzKNkN3QZ0gGINlVOWcm:U1PhAQztJWNeCVOWc
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	DUMP_00A10000-00A1D000.exe.ViR.exe

Executes dropped EXE 1 IoCs

pid	Process
2532	DirectX.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DirectX = "C:\\Users\\Admin\\AppData\\Roaming\\DirectX.exe"	DirectX.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\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.

flow	ioc
5	checkip.dyndns.org

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1716-0-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/files/0x000c000000023b6e-5.dat	upx
behavioral2/memory/1716-64-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2532-67-0x0000000000400000-0x0000000000419000-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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4128	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	DUMP_00A10000-00A1D000.exe.ViR.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2532	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	83
PID 1716 wrote to memory of 2532	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	83
PID 1716 wrote to memory of 2532	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	83
PID 1716 wrote to memory of 5044	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	90
PID 1716 wrote to memory of 5044	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	90
PID 1716 wrote to memory of 5044	1716	DUMP_00A10000-00A1D000.exe.ViR.exe	90
PID 5044 wrote to memory of 4128	5044	cmd.exe	92
PID 5044 wrote to memory of 4128	5044	cmd.exe	92
PID 5044 wrote to memory of 4128	5044	cmd.exe	92

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⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1716
- 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:2532
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c aaa.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5044
- - 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:4128

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

Query Registry

T1012

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

aaa.bat

Path C:\Users\Admin\AppData\Local\Temp\aaa.bat
Size 149B
SHA256 21060b57f9392d62259c274427c4bb6caf19b228716d691f44a26958b3620d5f
MD5 3e59a76bf84cb9d1a8585c17cda9b949
SHA1 60fdb9e6bf1154aad3a332ad5657a9d62a5be73a
SHA512 01bd3726c30e304dd712d302a9081052b50a85a28c586458b691e748b1867e85fa679e58db304793a18f554b8a8c17af00bd38e795d3fdb6b0f5a873f80b5303
MD5 SHA1 SHA512

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DirectX.exe

Path C:\Users\Admin\AppData\Roaming\DirectX.exe
Size 52KB
SHA256 2c4c8066a1a7dfdf42c57ff4f9016f1ba05bcb004ff8b0ffc0989165d2ad30e2
MD5 6152709e741c4d5a5d793d35817b4c3d
SHA1 05ae9c76f8f85ad2247c06d26a88bbbcfff4d62e
SHA512 1e5ebd53ac942b0f06f759f936efebeeb9a74062647cd978d5112720f772f607b12ee20c02ab838104a7a947fef2fde79b0db944286d8daf2e6e6d16e10b9390
SSDEEP 768:UR/FcohAQFBY4JzKNkN3QZ0gGINlVOWcm:U1PhAQztJWNeCVOWc
MD5 SHA1 SHA512 SSDEEP

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memory/1716-0-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/1716-64-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/2532-67-0x0000000000400000-0x0000000000419000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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