d459febb408cf7e62ce2aeebfdc1323544b6d178d22542a6f836b6820b2bdf40

General

Target

cafb65ee6617b984354d3025b87aef34.exe
Size

136KB
MD5

cafb65ee6617b984354d3025b87aef34
SHA1

7e0954d7a3d785c322a95210a554cbf44a94eaff
SHA256

d459febb408cf7e62ce2aeebfdc1323544b6d178d22542a6f836b6820b2bdf40
SHA512

1647533c2fcdc7f3bd6fb7a9bb69a25ad43bf8dc13a71a991c8e89d764f4352a741ace22237f496c889cea2237adf46306d9822a712f82682ffb66978e554d87
SSDEEP

3072:IFlPHoTgWMoDJeceXqSHgt8AIPH8FJgryZSxYnEl7L3g:IFhHGZl9e6SHgG8bkYnEl7s

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe = "C:\\Users\\Admin\\P-7-78-8964-9648-3874\\wincrs.exe:*:Enabled:Microsoft Windows System"	cafb65ee6617b984354d3025b87aef34.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	cafb65ee6617b984354d3025b87aef34.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	cafb65ee6617b984354d3025b87aef34.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	cafb65ee6617b984354d3025b87aef34.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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	cafb65ee6617b984354d3025b87aef34.exe

Executes dropped EXE 2 IoCs

pid	Process
2904	wincrs.exe
3584	wincrs.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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows System = "C:\\Users\\Admin\\P-7-78-8964-9648-3874\\wincrs.exe"	cafb65ee6617b984354d3025b87aef34.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 408 set thread context of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 2904 set thread context of 3584	2904	wincrs.exe	93

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\	cafb65ee6617b984354d3025b87aef34.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 408 wrote to memory of 3172	408	cafb65ee6617b984354d3025b87aef34.exe	89
PID 3172 wrote to memory of 2904	3172	cafb65ee6617b984354d3025b87aef34.exe	92
PID 3172 wrote to memory of 2904	3172	cafb65ee6617b984354d3025b87aef34.exe	92
PID 3172 wrote to memory of 2904	3172	cafb65ee6617b984354d3025b87aef34.exe	92
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93
PID 2904 wrote to memory of 3584	2904	wincrs.exe	93

C:\Users\Admin\AppData\Local\Temp\cafb65ee6617b984354d3025b87aef34.exe
"C:\Users\Admin\AppData\Local\Temp\cafb65ee6617b984354d3025b87aef34.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:408
- C:\Users\Admin\AppData\Local\Temp\cafb65ee6617b984354d3025b87aef34.exe
  "C:\Users\Admin\AppData\Local\Temp\cafb65ee6617b984354d3025b87aef34.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3172
- - C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe
    "C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2904
  - - C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe
      "C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe"
      4⤵
      Executes dropped EXE
      PID:3584

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\P-7-78-8964-9648-3874\wincrs.exe

Filesize
136KB

MD5
cafb65ee6617b984354d3025b87aef34

SHA1
7e0954d7a3d785c322a95210a554cbf44a94eaff

SHA256
d459febb408cf7e62ce2aeebfdc1323544b6d178d22542a6f836b6820b2bdf40

SHA512
1647533c2fcdc7f3bd6fb7a9bb69a25ad43bf8dc13a71a991c8e89d764f4352a741ace22237f496c889cea2237adf46306d9822a712f82682ffb66978e554d87

Download Submit
memory/408-1-0x00000000005D0000-0x00000000005D8000-memory.dmp

Filesize
32KB

Download
memory/408-0-0x00000000005D0000-0x00000000005D8000-memory.dmp

Filesize
32KB

Download
memory/2904-68-0x0000000002030000-0x0000000002038000-memory.dmp

Filesize
32KB

Download
memory/2904-69-0x0000000002030000-0x0000000002038000-memory.dmp

Filesize
32KB

Download
memory/3172-2-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3172-4-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3172-5-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3172-66-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3584-73-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3584-74-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads