dcrat | db57de1bf0b133303c2325117a527f1586e4bf6af56219391a17095efb09cc76

General

Target

8282EA0066E14F2E7CAF51B7A7D50DC1.exe
Size

1.0MB
MD5

8282ea0066e14f2e7caf51b7a7d50dc1
SHA1

83c03517bb11c4ef01ced0b8df76cb35acbf4fdd
SHA256

db57de1bf0b133303c2325117a527f1586e4bf6af56219391a17095efb09cc76
SHA512

b48e2b9c226f57c50b5e58d716a906e9753f254136697e3e32c5f6aba2c6cc0a3175b0b290630949ddb4229a8eda53e5b62d03c969f5ef187963302ecc9e6841

Score

10^/10

dcrat 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 Payload 4 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

Processes:

resource	yara_rule
C:\fontruntime\fontruntime.exe	dcrat
C:\fontruntime\fontruntime.exe	dcrat
C:\Boot\Fonts\ShellExperienceHost.exe	dcrat
C:\Boot\Fonts\ShellExperienceHost.exe	dcrat

Executes dropped EXE 2 IoCs

Processes:

fontruntime.exeShellExperienceHost.exe

pid process

2300 fontruntime.exe
184 ShellExperienceHost.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

14 ipinfo.io
15 ipinfo.io

pid	process
2300	fontruntime.exe
184	ShellExperienceHost.exe

flow	ioc
14	ipinfo.io
15	ipinfo.io

Drops file in System32 directory 7 IoCs

Processes:

fontruntime.exe

description	ioc	process
File created	C:\Windows\System32\msrahc\dllhost.exe	fontruntime.exe
File opened for modification	C:\Windows\System32\msrahc\dllhost.exe	fontruntime.exe
File created	C:\Windows\System32\msrahc\5940a34987c99120d96dace90a3f93f329dcad63	fontruntime.exe
File created	C:\Windows\System32\chgport\SppExtComObj.exe	fontruntime.exe
File created	C:\Windows\System32\chgport\e1ef82546f0b02b7e974f28047f3788b1128cce1	fontruntime.exe
File created	C:\Windows\System32\NgcProCsp\slui.exe	fontruntime.exe
File created	C:\Windows\System32\NgcProCsp\a29f4157103644af5692ebfddf35f6dff4e237da	fontruntime.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2264 schtasks.exe
3328 schtasks.exe
3868 schtasks.exe
2308 schtasks.exe
3160 schtasks.exe

pid	process
2264	schtasks.exe
3328	schtasks.exe
3868	schtasks.exe
2308	schtasks.exe
3160	schtasks.exe

Modifies registry class 2 IoCs

Processes:

8282EA0066E14F2E7CAF51B7A7D50DC1.exefontruntime.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	8282EA0066E14F2E7CAF51B7A7D50DC1.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	fontruntime.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2948 PING.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

fontruntime.exeShellExperienceHost.exe

pid process

2300 fontruntime.exe
2300 fontruntime.exe
2300 fontruntime.exe
184 ShellExperienceHost.exe
184 ShellExperienceHost.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

ShellExperienceHost.exe

pid process

184 ShellExperienceHost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fontruntime.exeShellExperienceHost.exe

description pid process

Token: SeDebugPrivilege 2300 fontruntime.exe
Token: SeDebugPrivilege 184 ShellExperienceHost.exe

pid	process
2948	PING.EXE

pid	process
2300	fontruntime.exe
2300	fontruntime.exe
2300	fontruntime.exe
184	ShellExperienceHost.exe
184	ShellExperienceHost.exe

pid	process
184	ShellExperienceHost.exe

description	pid	process
Token: SeDebugPrivilege	2300	fontruntime.exe
Token: SeDebugPrivilege	184	ShellExperienceHost.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

8282EA0066E14F2E7CAF51B7A7D50DC1.exeWScript.execmd.exefontruntime.execmd.exe

description	pid	process	target process
PID 808 wrote to memory of 68	808	8282EA0066E14F2E7CAF51B7A7D50DC1.exe	WScript.exe
PID 808 wrote to memory of 68	808	8282EA0066E14F2E7CAF51B7A7D50DC1.exe	WScript.exe
PID 808 wrote to memory of 68	808	8282EA0066E14F2E7CAF51B7A7D50DC1.exe	WScript.exe
PID 68 wrote to memory of 2580	68	WScript.exe	cmd.exe
PID 68 wrote to memory of 2580	68	WScript.exe	cmd.exe
PID 68 wrote to memory of 2580	68	WScript.exe	cmd.exe
PID 2580 wrote to memory of 2300	2580	cmd.exe	fontruntime.exe
PID 2580 wrote to memory of 2300	2580	cmd.exe	fontruntime.exe
PID 2300 wrote to memory of 2264	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 2264	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3328	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3328	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3868	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3868	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 2308	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 2308	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3160	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 3160	2300	fontruntime.exe	schtasks.exe
PID 2300 wrote to memory of 1008	2300	fontruntime.exe	cmd.exe
PID 2300 wrote to memory of 1008	2300	fontruntime.exe	cmd.exe
PID 1008 wrote to memory of 1288	1008	cmd.exe	chcp.com
PID 1008 wrote to memory of 1288	1008	cmd.exe	chcp.com
PID 1008 wrote to memory of 2948	1008	cmd.exe	PING.EXE
PID 1008 wrote to memory of 2948	1008	cmd.exe	PING.EXE
PID 1008 wrote to memory of 184	1008	cmd.exe	ShellExperienceHost.exe
PID 1008 wrote to memory of 184	1008	cmd.exe	ShellExperienceHost.exe

C:\Users\Admin\AppData\Local\Temp\8282EA0066E14F2E7CAF51B7A7D50DC1.exe
"C:\Users\Admin\AppData\Local\Temp\8282EA0066E14F2E7CAF51B7A7D50DC1.exe"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\fontruntime\W54cK365JLW2iwfNl.vbe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:68
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\fontruntime\R8YG6c.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2580
  - - C:\fontruntime\fontruntime.exe
      "C:\fontruntime\fontruntime.exe"
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2300
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\msrahc\dllhost.exe'" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:2264
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Windows\System32\chgport\SppExtComObj.exe'" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:3328
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "slui" /sc ONLOGON /tr "'C:\Windows\System32\NgcProCsp\slui.exe'" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:3868
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\fontruntime\fontdrvhost.exe'" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:2308
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "ShellExperienceHost" /sc ONLOGON /tr "'C:\Boot\Fonts\ShellExperienceHost.exe'" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:3160
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\fontruntime\tcqWpE8T6a.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1008
      - C:\Windows\system32\chcp.com
        
        chcp 65001
        6⤵
        
        PID:1288
      - C:\Windows\system32\PING.EXE
        
        ping -n 5 localhost
        6⤵
        Runs ping.exe
        
        PID:2948
      - C:\Boot\Fonts\ShellExperienceHost.exe
        
        "C:\Boot\Fonts\ShellExperienceHost.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        
        PID:184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Boot\Fonts\ShellExperienceHost.exe

MD5
37657f07638ec9a4f5edca0ef48318e9

SHA1
5e88e4d38743fc4bb6d2e4ada662315fb430bad4

SHA256
6e92e95e249505126d6013bcb0edc77f3de3fd0702999bf4dca7e7449b3702b6

SHA512
e64bfc73f99b6807b462d1c1826819e60a4095e3b40a0507e4423c3e136dd8f4d7657418af4a736b6c5c2470b8bfe5ead857067f1e6f20e8a3f201892095a9f3

Download Submit
C:\Boot\Fonts\ShellExperienceHost.exe

MD5
37657f07638ec9a4f5edca0ef48318e9

SHA1
5e88e4d38743fc4bb6d2e4ada662315fb430bad4

SHA256
6e92e95e249505126d6013bcb0edc77f3de3fd0702999bf4dca7e7449b3702b6

SHA512
e64bfc73f99b6807b462d1c1826819e60a4095e3b40a0507e4423c3e136dd8f4d7657418af4a736b6c5c2470b8bfe5ead857067f1e6f20e8a3f201892095a9f3

Download Submit
C:\fontruntime\R8YG6c.bat

MD5
0549e2d2679f2afeba43cb06997739e6

SHA1
1d14886a786af7bee891fd37f4bf84c81846c19e

SHA256
4b5eb60490f8970c80f17494fe936373855e82d1c29118847c9ddb099fcd2b2f

SHA512
7a18aedea52bb8f75cb2007ab3d53ae89dde128d4a2e42f738d3cea4e8a3e3b0c7852f067b4840f431a5f0863b031e9244b569124f3f0639c69e15ff345655ad

Download Submit
C:\fontruntime\W54cK365JLW2iwfNl.vbe

MD5
a240231e90c46d69d3b65d947b284c4b

SHA1
706a7a426f01a650322ee1afd975795f2c8572a0

SHA256
a71b4327dd6dc56a311005c83db97c649f4011e3f809e2d42b14eb2fcf76e664

SHA512
56a67d4798e499297a85ee8351108f306ad31b6f4ce8cff3c8f7a95b52c5631418465db7c56006fc2587cfee3e46af76a80c87f8d4f77e28c45d1593ae2a687d

Download Submit
C:\fontruntime\fontruntime.exe

MD5
37657f07638ec9a4f5edca0ef48318e9

SHA1
5e88e4d38743fc4bb6d2e4ada662315fb430bad4

SHA256
6e92e95e249505126d6013bcb0edc77f3de3fd0702999bf4dca7e7449b3702b6

SHA512
e64bfc73f99b6807b462d1c1826819e60a4095e3b40a0507e4423c3e136dd8f4d7657418af4a736b6c5c2470b8bfe5ead857067f1e6f20e8a3f201892095a9f3

Download Submit
C:\fontruntime\fontruntime.exe

MD5
37657f07638ec9a4f5edca0ef48318e9

SHA1
5e88e4d38743fc4bb6d2e4ada662315fb430bad4

SHA256
6e92e95e249505126d6013bcb0edc77f3de3fd0702999bf4dca7e7449b3702b6

SHA512
e64bfc73f99b6807b462d1c1826819e60a4095e3b40a0507e4423c3e136dd8f4d7657418af4a736b6c5c2470b8bfe5ead857067f1e6f20e8a3f201892095a9f3

Download Submit
C:\fontruntime\tcqWpE8T6a.bat

MD5
046526a909bae1f6dcc6f39bcb0edb0e

SHA1
a479b50e155b050b62bfcac9b3e3d5c6df9ac1b0

SHA256
3c53d94e90f0c079e53c21c43679d177112b631b645cf0c34d9b0551ae9170db

SHA512
4c83893fc2d5e5c85d61b7c59115ec3e8c7fbbeab9cac276fbddbf2e1f4f8fbd24b1a598a3be8d7cd0cad65347bf5da5cd1d861904d2b3fa9988b2d041e18fac

Download Submit
memory/68-116-0x0000000000000000-mapping.dmp

Download
memory/184-135-0x0000000000000000-mapping.dmp

Download
memory/184-140-0x000001B8E8060000-0x000001B8E8062000-memory.dmp

Filesize
8KB

Download
memory/184-143-0x000001B8CDE90000-0x000001B8CDE91000-memory.dmp

Filesize
4KB

Download
memory/184-142-0x000001B8CDE60000-0x000001B8CDE64000-memory.dmp

Filesize
16KB

Download
memory/184-141-0x000001B8CDDF0000-0x000001B8CDDF5000-memory.dmp

Filesize
20KB

Download
memory/1008-131-0x0000000000000000-mapping.dmp

Download
memory/1288-133-0x0000000000000000-mapping.dmp

Download
memory/2264-126-0x0000000000000000-mapping.dmp

Download
memory/2300-125-0x0000021780060000-0x0000021780062000-memory.dmp

Filesize
8KB

Download
memory/2300-123-0x00000217FE080000-0x00000217FE081000-memory.dmp

Filesize
4KB

Download
memory/2300-120-0x0000000000000000-mapping.dmp

Download
memory/2308-129-0x0000000000000000-mapping.dmp

Download
memory/2580-119-0x0000000000000000-mapping.dmp

Download
memory/2948-134-0x0000000000000000-mapping.dmp

Download
memory/3160-130-0x0000000000000000-mapping.dmp

Download
memory/3328-127-0x0000000000000000-mapping.dmp

Download
memory/3868-128-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads