dcrat | e0abb4fa147097a4fb1758ed20b7d1a54f020d0de2d8144a2beaec404acb4d4c

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/04/2024, 04:25

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General

Target
b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe
Size 2.1MB
Sample240407-e1yg1sdd83
SHA256 e0abb4fa147097a4fb1758ed20b7d1a54f020d0de2d8144a2beaec404acb4d4c
MD5 b1c1d5a5a79f7dcc878b3648a0bcb0c6
SHA1 595a5c2d50e0675fb2a35f8f01aec12c3bb03b3b
SHA512 7dec4fb9f50f8bb62dc6481ccc733db5fe18d1db74411890cae7b88ce597557e75f445be2f097f5e601a78c4bf5fc0eafb56e30415d0b4c014c78ad66719db2e
SSDEEP 49152:lS5Y0dPfBBpa1O/VZjTfcy2tyEGc0ng/5nH+VO7O0G:lSJBqU/HDctyJc0gZG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat infostealer rat

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 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x0009000000012245-3.dat	dcrat
behavioral1/files/0x002f000000015bfa-18.dat	dcrat
behavioral1/memory/2536-22-0x0000000000840000-0x0000000000A3E000-memory.dmp	dcrat

Executes dropped EXE 2 IoCs

pid	Process
2984	ratizounfhoisef.exe
2536	ProviderDriverNet.exe

Loads dropped DLL 3 IoCs

pid	Process
2104	b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe
2788	cmd.exe
2788	cmd.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	ProviderDriverNet.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2984	2104	b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe	28
PID 2104 wrote to memory of 2984	2104	b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe	28
PID 2104 wrote to memory of 2984	2104	b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe	28
PID 2104 wrote to memory of 2984	2104	b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe	28
PID 2984 wrote to memory of 2592	2984	ratizounfhoisef.exe	29
PID 2984 wrote to memory of 2592	2984	ratizounfhoisef.exe	29
PID 2984 wrote to memory of 2592	2984	ratizounfhoisef.exe	29
PID 2984 wrote to memory of 2592	2984	ratizounfhoisef.exe	29
PID 2592 wrote to memory of 2788	2592	WScript.exe	30
PID 2592 wrote to memory of 2788	2592	WScript.exe	30
PID 2592 wrote to memory of 2788	2592	WScript.exe	30
PID 2592 wrote to memory of 2788	2592	WScript.exe	30
PID 2788 wrote to memory of 2536	2788	cmd.exe	32
PID 2788 wrote to memory of 2536	2788	cmd.exe	32
PID 2788 wrote to memory of 2536	2788	cmd.exe	32
PID 2788 wrote to memory of 2536	2788	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe
"C:\Users\Admin\AppData\Local\Temp\b1c1d5a5a79f7dcc878b3648a0bcb0c6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\ratizounfhoisef.exe
  "C:\Users\Admin\AppData\Local\Temp\ratizounfhoisef.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\portNet\JK6gmGek8xn8B6fPCdEqzuaHCz.vbe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\portNet\nzntA15YgkXXFuJk3IQ0EB2k.bat" "
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2788
    - - C:\Users\Admin\AppData\Roaming\portNet\ProviderDriverNet.exe
        
        "C:\Users\Admin\AppData\Roaming\portNet\ProviderDriverNet.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

JK6gmGek8xn8B6fPCdEqzuaHCz.vbe

Path C:\Users\Admin\AppData\Roaming\portNet\JK6gmGek8xn8B6fPCdEqzuaHCz.vbe
Size 215B
SHA256 7c5dd2721278be79e64b0c7cdb9714823e61c938075af4d492db6c6773271c9d
MD5 e974db8ca6cd3b24f087f9f2ea714a8f
SHA1 862aaa7e946edeb4dac34b35d62d4b83e97c40b4
SHA512 fc4c801ce73e60deafdb9677f68c414d05f3342174e2a88b49dc0aa2c883c37ba93df750f01a81c2df78f036f54bdee586a529c963ef1f9bd464420d039138ef
MD5 SHA1 SHA512

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nzntA15YgkXXFuJk3IQ0EB2k.bat

Path C:\Users\Admin\AppData\Roaming\portNet\nzntA15YgkXXFuJk3IQ0EB2k.bat
Size 41B
SHA256 56315ea91a708e97b384aacf8aad9da6169f22457045a956eca100cbe406cb10
MD5 ca5879e4efac874c180ff79fd5e12e50
SHA1 6fbf6a447bf2859bcfcd37b9dc4b5c6034dd9a62
SHA512 48cb042a3e0dade7d23f8f9f6b9909f087c9fe4f6634c3ad07288ad9dd9ca7c35364aa8c69bb96ad9c120170ab5439765d3b1e95614a3ac25daf9d7fb2f1d5eb
MD5 SHA1 SHA512

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ratizounfhoisef.exe

Path \Users\Admin\AppData\Local\Temp\ratizounfhoisef.exe
Size 2.3MB
SHA256 021ca333c6137d92a4025679a5f8c8b6b2148495ea7371fc9d6d0f348355d10e
MD5 4155eb05cc309e3f643955a5636178c2
SHA1 1e159edb3122bfcaec3b177b296c416b97234056
SHA512 f5496e5e4b8bf588f6f444a20cae0c992da63ba3b13087c87d295e752ad18f2be5e216625e9f1bc0dcbf753bcd3466992a50d1311f932596a4e86b8765cba7b0
SSDEEP 49152:UbA30YwZ/Pps1z2gdYJqAfDg207fqugwmnir4:Ubn/BqNc7U7Ewmnir4
MD5 SHA1 SHA512 SSDEEP

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ProviderDriverNet.exe

Path \Users\Admin\AppData\Roaming\portNet\ProviderDriverNet.exe
Size 2.0MB
SHA256 c6b76b9fba7b0694024473fdc37b6da8da9b83aff25c621eac0eaf1f57c6cecc
MD5 f3388d36878f3802e6976c16c018e32c
SHA1 0b97d3ba7a0385b79a02d9939595b1e3b008f68f
SHA512 4bb41942437c5c824d0f0de798e2bce545afc8587bc71178446ff37e60f3dc87a809b998f5562dbe79cd62e6e477702c50f192d59665e861fe1816f8d1b1b703
SSDEEP 24576:eBwZkBDGR18TaW4maf1lsEmzl0x5gdYegU3AfDg2rIHbluUqYdgw+BAYniPj+s:qwZ/Pps1z2gdYJqAfDg207fqugwmnir
MD5 SHA1 SHA512 SSDEEP

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memory/2104-0-0x0000000000400000-0x0000000000617000-memory.dmp

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memory/2536-22-0x0000000000840000-0x0000000000A3E000-memory.dmp

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memory/2536-23-0x000007FEF5700000-0x000007FEF60EC000-memory.dmp

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memory/2536-24-0x000000001B2C0000-0x000000001B340000-memory.dmp

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memory/2536-25-0x00000000003D0000-0x00000000003DE000-memory.dmp

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memory/2536-26-0x000007FEF5700000-0x000007FEF60EC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads