discordrat | 76393354a6a3ddebfbd5f53f185849e48c4ab158609ee2a24411ef4ad4a13bf2

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13-07-2024 20:07

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General

Target

rostrap.exe
Size

4.7MB
MD5

e26cd0708de26fc18a2af2ff6fdbddfa
SHA1

201b3445de0070cd054bc67818b2a2090118dcdd
SHA256

76393354a6a3ddebfbd5f53f185849e48c4ab158609ee2a24411ef4ad4a13bf2
SHA512

0a2897a2811b3980daa48c4f61aa66f5ea69d380af076876373276af7435e9c3f3336469b418ea6f314de75ddceb7e8da6c01660c7ebebbe52a40593c1b64bc1
SSDEEP

98304:fb3/VPhspHSrjl3GcqMOFm14O+rHJ49nDZcFMxnh:fjTaHsjl6M0mqO0QDZaMxnh

Score

10^/10

discordrat evasion persistence rat rootkit stealer themida trojan

Malware Config

Extracted

Family

discordrat

Attributes

discord_token
MTI2MTcwMjM0NDQ4ODUyMTgwOQ.G6Bxmp.lZQNCu-ZZ94b9CGCSYHyNJ8h_8sgjGMX0iJAD8
server_id
1261770885514137682

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

Processes:

rostrap.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rostrap.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rostrap.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

Processes:

rostrap.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rostrap.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rostrap.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/3024-7-0x0000000140000000-0x0000000140C8E000-memory.dmp	themida
behavioral1/memory/3024-8-0x0000000140000000-0x0000000140C8E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rostrap.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rostrap.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rostrap.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 11 IoCs

Web Service

T1102

Processes:

flow	ioc
26	discord.com
27	discord.com
40	discord.com
41	discord.com
17	discord.com
22	discord.com
24	discord.com
52	discord.com
18	discord.com
25	discord.com
51	discord.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rostrap.exe

pid process

3024 rostrap.exe
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.

System Information Discovery
T1082

Processes:

systeminfo.exe

pid process

4288 systeminfo.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rostrap.exe

description pid process

Token: SeDebugPrivilege 3024 rostrap.exe

pid	process
3024	rostrap.exe

pid	process
4288	systeminfo.exe

description	pid	process
Token: SeDebugPrivilege	3024	rostrap.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

rostrap.execmd.exe

description	pid	process	target process
PID 3024 wrote to memory of 3976	3024	rostrap.exe	cmd.exe
PID 3024 wrote to memory of 3976	3024	rostrap.exe	cmd.exe
PID 3976 wrote to memory of 4288	3976	cmd.exe	systeminfo.exe
PID 3976 wrote to memory of 4288	3976	cmd.exe	systeminfo.exe

C:\Users\Admin\AppData\Local\Temp\rostrap.exe
"C:\Users\Admin\AppData\Local\Temp\rostrap.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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024

C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /C SYSTEMINFO
2⤵
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\system32\systeminfo.exe
SYSTEMINFO
3⤵
- Gathers system information
PID:4288

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3024-0-0x0000000140000000-0x0000000140C8E000-memory.dmp

Filesize
12.6MB

Download
memory/3024-1-0x00007FF9E1FB4000-0x00007FF9E1FB5000-memory.dmp

Filesize
4KB

Download
memory/3024-2-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download
memory/3024-4-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download
memory/3024-6-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download
memory/3024-7-0x0000000140000000-0x0000000140C8E000-memory.dmp

Filesize
12.6MB

Download
memory/3024-8-0x0000000140000000-0x0000000140C8E000-memory.dmp

Filesize
12.6MB

Download
memory/3024-9-0x0000000002B20000-0x0000000002CE2000-memory.dmp

Filesize
1.8MB

Download
memory/3024-10-0x0000000140000000-0x0000000140C8E000-memory.dmp

Filesize
12.6MB

Download
memory/3024-11-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download
memory/3024-12-0x00000000202C0000-0x00000000207E8000-memory.dmp

Filesize
5.2MB

Download
memory/3024-13-0x00007FF9E1FB4000-0x00007FF9E1FB5000-memory.dmp

Filesize
4KB

Download
memory/3024-14-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download
memory/3024-17-0x00007FF9E1F50000-0x00007FF9E2219000-memory.dmp

Filesize
2.8MB

Download