discordrat | 58638ff7af545a8ddf3d05ec44b916de2f6e5e3a3d9ed1d9ac95c43737b3d974

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 23:40

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General

Target

Update Check.exe
Size

4.2MB
MD5

d53d1f00ed58f99f59822c2d2d544010
SHA1

0b7044e63ad051185cdfac92e23ce85af8faa9c8
SHA256

58638ff7af545a8ddf3d05ec44b916de2f6e5e3a3d9ed1d9ac95c43737b3d974
SHA512

4fe5428921a60bd4fdb5f91a4a0e35d6656f14071a2841a254523e04608cc89b79662b538e5f34aa157540fd87efd98a34be8bf662e2f5ed94abd85fc3f3b9e8
SSDEEP

98304:SelujKJAy3ppt06bZmCOHDujxBJSjMgL3+ylLGEeU4uz1P9zz9Izjhed:SZ1yZpt06NmPjuBYAAOylLGEeRy9zz9r

Score

10^/10

discordrat evasion persistence rat rootkit stealer themida trojan

Malware Config

Extracted

Family

discordrat

Attributes

discord_token
MTI1OTY0MjcxOTc2OTMyOTc0NA.G7ihTo._RCPiBzL9dSbWyoWQXFjvV6wNhGpmHiAW1ckvc
server_id
1292317246118559744

Signatures

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Update Check.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Update Check.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Update Check.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2416-7-0x000000013FC30000-0x0000000140778000-memory.dmp	themida
behavioral1/memory/2416-8-0x000000013FC30000-0x0000000140778000-memory.dmp	themida
behavioral1/memory/2416-14-0x000000013FC30000-0x0000000140778000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Update Check.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2416	Update Check.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2948	2416	Update Check.exe	31
PID 2416 wrote to memory of 2948	2416	Update Check.exe	31
PID 2416 wrote to memory of 2948	2416	Update Check.exe	31

C:\Users\Admin\AppData\Local\Temp\Update Check.exe
"C:\Users\Admin\AppData\Local\Temp\Update Check.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2416 -s 608
  2⤵
  PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2416-0-0x000000013FC30000-0x0000000140778000-memory.dmp

Filesize
11.3MB

Download
memory/2416-1-0x000007FEFD5B4000-0x000007FEFD5B5000-memory.dmp

Filesize
4KB

Download
memory/2416-3-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-2-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-5-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-4-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-7-0x000000013FC30000-0x0000000140778000-memory.dmp

Filesize
11.3MB

Download
memory/2416-8-0x000000013FC30000-0x0000000140778000-memory.dmp

Filesize
11.3MB

Download
memory/2416-9-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-10-0x000000013FC30000-0x0000000140778000-memory.dmp

Filesize
11.3MB

Download
memory/2416-11-0x000007FEFD5B4000-0x000007FEFD5B5000-memory.dmp

Filesize
4KB

Download
memory/2416-12-0x000007FEFD5A0000-0x000007FEFD60C000-memory.dmp

Filesize
432KB

Download
memory/2416-14-0x000000013FC30000-0x0000000140778000-memory.dmp

Filesize
11.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads