e43a687ad1d6dd93157260935d840429b4b650db61bfc8946bf7a0f10a882d4b

General

Target

b500525ec82203429144f30eadc3d602.exe
Size

108KB
MD5

b500525ec82203429144f30eadc3d602
SHA1

b693d7d15674647a7ac8ab4abd41f2ffe84b75e5
SHA256

e43a687ad1d6dd93157260935d840429b4b650db61bfc8946bf7a0f10a882d4b
SHA512

cc5e6c9d152718e852e1eb3e9f2f6c71a45abd16cde063b2c7455b61eb26c4aae5ae8fbe8362a2fae3636624a1575b2b80fdea11bf71ff391755acfaeeb82e9d
SSDEEP

3072:h9fpaVgrXWJuH7RgwiGkfM1+rS3vK0Ya71r:PpQgrmJG7Rg4/+rS3SPm

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	b500525ec82203429144f30eadc3d602.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	b500525ec82203429144f30eadc3d602.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	b500525ec82203429144f30eadc3d602.exe
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"	b500525ec82203429144f30eadc3d602.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	b500525ec82203429144f30eadc3d602.exe

Executes dropped EXE 2 IoCs

pid	Process
4960	wincrs.exe
392	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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows System = "C:\\Users\\Admin\\P-7-78-8964-9648-3874\\wincrs.exe"	b500525ec82203429144f30eadc3d602.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 4960 set thread context of 392	4960	wincrs.exe	92

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\	b500525ec82203429144f30eadc3d602.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 1516 wrote to memory of 2900	1516	b500525ec82203429144f30eadc3d602.exe	88
PID 2900 wrote to memory of 4960	2900	b500525ec82203429144f30eadc3d602.exe	91
PID 2900 wrote to memory of 4960	2900	b500525ec82203429144f30eadc3d602.exe	91
PID 2900 wrote to memory of 4960	2900	b500525ec82203429144f30eadc3d602.exe	91
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92
PID 4960 wrote to memory of 392	4960	wincrs.exe	92

C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe
"C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe
  "C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2900
- - 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:4960
  - - 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:392

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
108KB

MD5
b500525ec82203429144f30eadc3d602

SHA1
b693d7d15674647a7ac8ab4abd41f2ffe84b75e5

SHA256
e43a687ad1d6dd93157260935d840429b4b650db61bfc8946bf7a0f10a882d4b

SHA512
cc5e6c9d152718e852e1eb3e9f2f6c71a45abd16cde063b2c7455b61eb26c4aae5ae8fbe8362a2fae3636624a1575b2b80fdea11bf71ff391755acfaeeb82e9d

Download Submit
memory/392-77-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/392-76-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1516-1-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/1516-2-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/1516-5-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1516-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2900-7-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2900-6-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2900-3-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4960-70-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/4960-75-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4960-71-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads