b2f0e158b12a041a617b6287fafdeba7b91994db225b73a6002dc6b544d4c0ed

General

Target

0bac6e23671f8f591d3329f527369d9b.exe
Size

475KB
MD5

0bac6e23671f8f591d3329f527369d9b
SHA1

adf0579b98b0bcb62e3e853ed260d0c8adb39969
SHA256

b2f0e158b12a041a617b6287fafdeba7b91994db225b73a6002dc6b544d4c0ed
SHA512

f85fa63e907d469475347bb3d665289a3e8666cf75733fe2483d0362a7e3619fc3a1894e5d5f3125a7a7ba5550eebb265f76f49606ac24c426311fb2f0976f82
SSDEEP

3072:+HXzNlUR5SeeL84Gezv7F36LvFBWFCfsiSim4XzPJm0:+DNi5qtLQ5BPsKm4Xv

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	0bac6e23671f8f591d3329f527369d9b.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	0bac6e23671f8f591d3329f527369d9b.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	0bac6e23671f8f591d3329f527369d9b.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe = "C:\\Users\\Admin\\Microsoft-Driver-1-82-3875-8725-4265\\winsvn.exe:*:Enabled:MicrosoftServiceUpdates"	0bac6e23671f8f591d3329f527369d9b.exe

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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	0bac6e23671f8f591d3329f527369d9b.exe

Executes dropped EXE 2 IoCs

pid	Process
1640	winsvn.exe
2804	winsvn.exe

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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicrosoftServiceUpdates = "C:\\Users\\Admin\\Microsoft-Driver-1-82-3875-8725-4265\\winsvn.exe"	0bac6e23671f8f591d3329f527369d9b.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 844 set thread context of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 1640 set thread context of 2804	1640	winsvn.exe	96

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	0bac6e23671f8f591d3329f527369d9b.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 844 wrote to memory of 1740	844	0bac6e23671f8f591d3329f527369d9b.exe	90
PID 1740 wrote to memory of 1640	1740	0bac6e23671f8f591d3329f527369d9b.exe	91
PID 1740 wrote to memory of 1640	1740	0bac6e23671f8f591d3329f527369d9b.exe	91
PID 1740 wrote to memory of 1640	1740	0bac6e23671f8f591d3329f527369d9b.exe	91
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96
PID 1640 wrote to memory of 2804	1640	winsvn.exe	96

C:\Users\Admin\AppData\Local\Temp\0bac6e23671f8f591d3329f527369d9b.exe
"C:\Users\Admin\AppData\Local\Temp\0bac6e23671f8f591d3329f527369d9b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:844
- C:\Users\Admin\AppData\Local\Temp\0bac6e23671f8f591d3329f527369d9b.exe
  C:\Users\Admin\AppData\Local\Temp\0bac6e23671f8f591d3329f527369d9b.exe
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe
    "C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe
      C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe
      4⤵
      Executes dropped EXE
      PID:2804

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe

Filesize
475KB

MD5
0bac6e23671f8f591d3329f527369d9b

SHA1
adf0579b98b0bcb62e3e853ed260d0c8adb39969

SHA256
b2f0e158b12a041a617b6287fafdeba7b91994db225b73a6002dc6b544d4c0ed

SHA512
f85fa63e907d469475347bb3d665289a3e8666cf75733fe2483d0362a7e3619fc3a1894e5d5f3125a7a7ba5550eebb265f76f49606ac24c426311fb2f0976f82

Download Submit
C:\Users\Admin\Microsoft-Driver-1-82-3875-8725-4265\winsvn.exe

Filesize
464KB

MD5
d3e6a592e79c2dc17475455038ffe243

SHA1
a432833d9db23720fedd7348774ff605489c3a82

SHA256
f37ef6025737ea8db9a98809515d12f29566c284c6085763a920a050e6a64f3e

SHA512
61f9b681ba6a7f7886612bec6a240cc6a826c66777b574934a535add2506bf3993c99a640d7460ba59c7b7323f1f2d430486482ca8ff44bf96f2abc90595b7ee

Download Submit
memory/844-0-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/844-3-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1640-66-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1640-72-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1740-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1740-4-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1740-5-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2804-73-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2804-74-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads