dcrat | 96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29

Analysis

max time kernel
93s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 15:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe
Size

1.0MB
MD5

7b4ad4dbf6e4580b8f8c77b4cee261c3
SHA1

a0ec2acea793dda997a3dfa1c869c66a3122341f
SHA256

96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29
SHA512

3349cad638cf58a3c15b7a16df797b15dc528dc181d5133b654312d8155a3dcaa2b239abfb44d55b0d5ef11f932da15683275f36052ee7ade43c390b04a2bf00
SSDEEP

24576:a9yzNBe14PPPDj5pGSZb1iUyJxuxqH1jznDyLyF8pb5RG846Eg4Pi9:he1UPpp/1iVJxuxk1neLyQOp6ErPM

Score

10^/10

dcrat discovery infostealer rat spyware stealer

Malware Config

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat
Dcrat family
dcrat

DCRat payload 3 IoCs

rat

resource	yara_rule
behavioral2/files/0x0007000000023c87-22.dat	family_dcrat_v2
behavioral2/memory/1772-27-0x0000000000400000-0x00000000004E6000-memory.dmp	family_dcrat_v2
behavioral2/memory/2124-30-0x00000000000A0000-0x0000000000150000-memory.dmp	family_dcrat_v2

Checks computer location settings 2 TTPs 2 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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	UrmCy94eaJ.exe

Executes dropped EXE 3 IoCs

pid	Process
4012	Ia5p3NymWO.exe
2124	UrmCy94eaJ.exe
1324	wininit.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Photo Viewer\fr-FR\ee2ad38f3d4382	UrmCy94eaJ.exe
File created	C:\Program Files\Java\jre-1.8\legal\fontdrvhost.exe	UrmCy94eaJ.exe
File created	C:\Program Files\Java\jre-1.8\legal\5b884080fd4f94	UrmCy94eaJ.exe
File created	C:\Program Files (x86)\Windows Portable Devices\sppsvc.exe	UrmCy94eaJ.exe
File created	C:\Program Files (x86)\Windows Portable Devices\0a1fd5f707cd16	UrmCy94eaJ.exe
File created	C:\Program Files (x86)\Windows Photo Viewer\fr-FR\Registry.exe	UrmCy94eaJ.exe

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 2 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	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1984	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings	UrmCy94eaJ.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1984	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
2124	UrmCy94eaJ.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe
1324	wininit.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	UrmCy94eaJ.exe
Token: SeDebugPrivilege	1324	wininit.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 2536 wrote to memory of 1772	2536	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	83
PID 1772 wrote to memory of 4012	1772	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	84
PID 1772 wrote to memory of 4012	1772	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	84
PID 1772 wrote to memory of 2124	1772	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	86
PID 1772 wrote to memory of 2124	1772	96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe	86
PID 2124 wrote to memory of 4932	2124	UrmCy94eaJ.exe	87
PID 2124 wrote to memory of 4932	2124	UrmCy94eaJ.exe	87
PID 4932 wrote to memory of 2840	4932	cmd.exe	89
PID 4932 wrote to memory of 2840	4932	cmd.exe	89
PID 4932 wrote to memory of 1984	4932	cmd.exe	90
PID 4932 wrote to memory of 1984	4932	cmd.exe	90
PID 4932 wrote to memory of 1324	4932	cmd.exe	96
PID 4932 wrote to memory of 1324	4932	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe
"C:\Users\Admin\AppData\Local\Temp\96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe
  "C:\Users\Admin\AppData\Local\Temp\96a676b5a46cd2272459d16c6ba3bacb0c8d3f47059aeb08a94cefd2c9fa3f29.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Users\Admin\AppData\Roaming\Ia5p3NymWO.exe
    "C:\Users\Admin\AppData\Roaming\Ia5p3NymWO.exe"
    3⤵
    - Executes dropped EXE
    PID:4012
- - C:\Users\Admin\AppData\Roaming\UrmCy94eaJ.exe
    "C:\Users\Admin\AppData\Roaming\UrmCy94eaJ.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2124
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\guhq37FcS1.bat"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4932
    - - C:\Windows\system32\chcp.com
        
        chcp 65001
        5⤵
        
        PID:2840
    - - C:\Windows\system32\PING.EXE
        
        ping -n 10 localhost
        5⤵
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:1984
    - - C:\Users\Public\Pictures\wininit.exe
        
        "C:\Users\Public\Pictures\wininit.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\guhq37FcS1.bat

Filesize
164B

MD5
dd46ecc18b8c358e39747412acf56072

SHA1
eb4b71d5f5690fe3045948a3fa05da021546b856

SHA256
6db3d61625197e978a351eeb68648731bae3684200e5d2ad9953fc8781061a38

SHA512
b9f0188ec39440d104f560877760ef53a7b25fe860bd06bb99faf8423475eac4692177f11e32d1d9532ec6a514031d43ab2cb29ce235a596f3d6dcc7684b5c80

Download Submit
C:\Users\Admin\AppData\Roaming\Ia5p3NymWO.exe

Filesize
18KB

MD5
f3edff85de5fd002692d54a04bcb1c09

SHA1
4c844c5b0ee7cb230c9c28290d079143e00cb216

SHA256
caf29650446db3842e1c1e8e5e1bafadaf90fc82c5c37b9e2c75a089b7476131

SHA512
531d920e2567f58e8169afc786637c1a0f7b9b5c27b27b5f0eddbfc3e00cecd7bea597e34061d836647c5f8c7757f2fe02952a9793344e21b39ddd4bf7985f9d

Download Submit
C:\Users\Admin\AppData\Roaming\UrmCy94eaJ.exe

Filesize
675KB

MD5
314420bac969bcfb9510a0e8cc3686d6

SHA1
66f1d0a60a2727970476a105c88883f37270e30f

SHA256
38b9cc3ccae02c270e3d62e62e3b3b40e90ad7f898372b8a5035445ba32f4b26

SHA512
debf908add95aa0849451aef830e5e71724247d352dcb5dad6b02dca0d54e4e915a9430de80d970a4e7ef3749eb2fc7c6fa7839348d84f546d5934d713e7569c

Download Submit
memory/1772-4-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/1772-5-0x0000000000750000-0x0000000000856000-memory.dmp

Filesize
1.0MB

Download
memory/1772-2-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/1772-3-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/1772-1-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/1772-27-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2124-30-0x00000000000A0000-0x0000000000150000-memory.dmp

Filesize
704KB

Download
memory/2124-32-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/2124-35-0x0000000002310000-0x000000000232C000-memory.dmp

Filesize
112KB

Download
memory/2124-33-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/2124-36-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/2124-37-0x000000001ACA0000-0x000000001ACF0000-memory.dmp

Filesize
320KB

Download
memory/2124-39-0x0000000002330000-0x0000000002348000-memory.dmp

Filesize
96KB

Download
memory/2124-45-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/2124-56-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/2124-31-0x00007FFEBCFA3000-0x00007FFEBCFA5000-memory.dmp

Filesize
8KB

Download
memory/2536-0-0x000000000076D000-0x000000000076E000-memory.dmp

Filesize
4KB

Download