discordrat | b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5

General

Target

b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe
Size

795KB
MD5

0f3d85879ca1dea6acd30e1222c53993
SHA1

0f16b8bb81f744d78002f11928c63cb1611bec57
SHA256

b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5
SHA512

ab73849179d520bb8719bcb772632f2310832f92a97aae99c8fe04acb721bcc3e4d0f0a16b90316a765d8883b42f26b72f4de1c945679035db5c2d34719da9a5
SSDEEP

24576:FGHCm8uPdJy+x3eWhJ7kUewGIeAfjFb5pI:suWjeW2UPGPAHW

Score

10^/10

discordrat defense_evasion discovery persistence rat rootkit stealer

Malware Config

Extracted

Family

discordrat

Attributes

discord_token
MTMxMTQ0NDk4MTAxMzAyMDc3Mg.Gz_2To.ddyZMlskW5IkWxvZKQxtRRzfz4cgw2XjE4yAu0
server_id
1311378795281776650

Signatures

Discord RAT
A RAT written in C# using Discord as a C2.
stealer rootkit rat persistence discordrat
Discordrat family
discordrat

Manipulates Digital Signatures 1 TTPs 3 IoCs

Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.1!7\Name = "szOID_ROOT_PROGRAM_AUTO_UPDATE_CA_REVOCATION"	certutil.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.2!7\Name = "szOID_ROOT_PROGRAM_AUTO_UPDATE_END_REVOCATION"	certutil.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.3!7\Name = "szOID_ROOT_PROGRAM_NO_OCSP_FAILOVER_TO_CRL"	certutil.exe

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2208	35e1y7i73e.exe

Deobfuscate/Decode Files or Information 1 TTPs 1 IoCs

Payload decoded via CertUtil.

defense_evasion

Deobfuscate/Decode Files or Information

T1140

pid	Process
4076	certutil.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
15	discord.com
16	discord.com
22	discord.com

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 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	certutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	35e1y7i73e.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 5112	1284	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe	87
PID 1284 wrote to memory of 5112	1284	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe	87
PID 1284 wrote to memory of 5112	1284	b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe	87
PID 5112 wrote to memory of 3568	5112	WScript.exe	88
PID 5112 wrote to memory of 3568	5112	WScript.exe	88
PID 5112 wrote to memory of 3568	5112	WScript.exe	88
PID 3568 wrote to memory of 4076	3568	cmd.exe	90
PID 3568 wrote to memory of 4076	3568	cmd.exe	90
PID 3568 wrote to memory of 4076	3568	cmd.exe	90
PID 3568 wrote to memory of 2208	3568	cmd.exe	91
PID 3568 wrote to memory of 2208	3568	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe
"C:\Users\Admin\AppData\Local\Temp\b427f4cc1ac1f00e3ad33e24676646560cf04aee44eeaefa2a9758a08a6f78a5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Run.vbs"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c man.bat
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3568
  - - C:\Windows\SysWOW64\certutil.exe
      certutil -decode C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.txt C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.exe
      4⤵
      Manipulates Digital Signatures
      Deobfuscate/Decode Files or Information
      System Location Discovery: System Language Discovery
      PID:4076
  - - C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.exe
      C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Deobfuscate/Decode Files or Information

1

T1140

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.exe

Filesize
78KB

MD5
7d2b96a1886c76b42845b5b17d8f8834

SHA1
396987063ea768d305d5822b4682e2ab3a96bd9a

SHA256
9387875527976a33db416852acfcc15f6763f4850e8fdbeaf6aedc3089ef37a0

SHA512
31508f71a4a0b78fdd95556900aea1c892e6643a191468cbeb7cbc7425384360ce9a4441d649b441c11ab02512f798c13175e5a060481a4feef4f01844019d3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.txt

Filesize
105KB

MD5
ceaeafc017a42635bbf53b04417ef508

SHA1
7d8ace57aeaf0aa6b61526429ab2658941444333

SHA256
2684580741d138c06a1c0b7952f4120c390ff284bf66ed636408efa66b2329b5

SHA512
4f67aa83f6ceb35892c802ed7faeaa8c0950285062d2096ac9949e40bc3a7cbc69bbf1a9f6c3774cfeb47d59c61256769c0cdc07eeb6876f638203b40847b84d

Download Submit
C:\Users\Admin\AppData\Local\Temp\35e1y7i73e.txt

Filesize
7KB

MD5
4047ffe03f0920f4e9f1014aac549d6a

SHA1
866862fd5dbf0bf216279a9a02f552a36f9ac8e1

SHA256
222690ba6678eeeafff9005961f9cff100c4fbf0e7483b4ed8b98d5c3878b2dc

SHA512
f997a6af16b2aa0e89c7f7e67b3c6aa5cf06c952f803688d79b50705d53c225b9c4242d78d0673ed6bb0f217c06996e5684cb2d68459020f31711bff6320e22f

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Run.vbs

Filesize
123B

MD5
19b182abe6109e7eff896828540fafda

SHA1
60bb82eedf097ab4c0a4d0d466938af74a2296a4

SHA256
8d9e9a3a5bbdb640056a8d76167f99f601be0e68d92f2f2322b5366a2995369e

SHA512
f1fbdb61c867853f99be8b12da1f5332b10cd25c3ed9f17e8a3afab60ecbfddfa9e84ffc8ae2dc8ec1505f326c4fde6f188a0ecd85f76739d6696dc945717e58

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\man.bat

Filesize
107KB

MD5
7762dea18eb9af46c481c2f9c6466258

SHA1
1c4b7bc25c5c20db7df16b16a0454f364bcc1e83

SHA256
de12124e2abf15f90a7375be74ad355f4555252ab332ddadcda3ada84aab4d87

SHA512
5386111d663ec78ca02d9584d4337e4318e359f8087be9a20baa4c035b6889c1817ec7603053f2deac17daf5086da65b0517599144f379ab58b6d70484ab96bb

Download Submit
memory/2208-149-0x0000020CFF600000-0x0000020CFF618000-memory.dmp

Filesize
96KB

Download
memory/2208-150-0x0000020CFFCF0000-0x0000020CFFEB2000-memory.dmp

Filesize
1.8MB

Download
memory/2208-151-0x0000020C9A880000-0x0000020C9ADA8000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing