toxiceye | a52f043910c50f8d250162379935316f63db792bf9824afd5dc326e12676a089

General

Target

12.exe
Size

121KB
MD5

117a350a0991d312d62eea33933f4f9b
SHA1

3c4c2b9608bdf3b7e477cef26e12721187fb5558
SHA256

a52f043910c50f8d250162379935316f63db792bf9824afd5dc326e12676a089
SHA512

d09e19366b912189415c3eb8ca427afedbcd3baca280b33bad5e6817ec5ec01f09e4b9d5be32e63694a48c55bd962099182af64a34dbe2615fdb82963c497809
SSDEEP

3072:/ItZ1HOSJAwncZ+5OG3wy+pKbxqHLQWHzCrAZuaNu:Lx+AG3wtKbg3

Score

10^/10

toxiceye discovery rat trojan

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot7677893184:AAE0-PsPfzGgNiPGIk585ulPgzKriWDrM10/sendMessage?chat_id=7494459853

Signatures

ToxicEye
ToxicEye is a trojan written in C#.
rat trojan toxiceye
Toxiceye family
toxiceye

Executes dropped EXE 1 IoCs

pid	Process
4364	NTUSER.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
2996	tasklist.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	NTUSER.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	NTUSER.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3408	timeout.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2928	schtasks.exe
2896	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4364	NTUSER.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe
4364	NTUSER.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4076	12.exe
Token: SeDebugPrivilege	2996	tasklist.exe
Token: SeDebugPrivilege	4364	NTUSER.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4364	NTUSER.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 2928	4076	12.exe	78
PID 4076 wrote to memory of 2928	4076	12.exe	78
PID 4076 wrote to memory of 3700	4076	12.exe	80
PID 4076 wrote to memory of 3700	4076	12.exe	80
PID 3700 wrote to memory of 2996	3700	cmd.exe	82
PID 3700 wrote to memory of 2996	3700	cmd.exe	82
PID 3700 wrote to memory of 2148	3700	cmd.exe	83
PID 3700 wrote to memory of 2148	3700	cmd.exe	83
PID 3700 wrote to memory of 3408	3700	cmd.exe	85
PID 3700 wrote to memory of 3408	3700	cmd.exe	85
PID 3700 wrote to memory of 4364	3700	cmd.exe	86
PID 3700 wrote to memory of 4364	3700	cmd.exe	86
PID 4364 wrote to memory of 2896	4364	NTUSER.exe	88
PID 4364 wrote to memory of 2896	4364	NTUSER.exe	88

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\12.exe
"C:\Users\Admin\AppData\Local\Temp\12.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "System Event Notification Service Host" /tr "C:\Users\Static\NTUSER.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2928
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp9DA7.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp9DA7.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3700
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 4076"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2996
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:2148
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3408
- - C:\Users\Static\NTUSER.exe
    "NTUSER.exe"
    3⤵
    - Executes dropped EXE
    - Checks processor information in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "System Event Notification Service Host" /tr "C:\Users\Static\NTUSER.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2896

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:5028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Process Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\f275ea8e-e3e9-42fe-8f7b-8042fa6b1884.down_data

Filesize
555KB

MD5
5683c0028832cae4ef93ca39c8ac5029

SHA1
248755e4e1db552e0b6f8651b04ca6d1b31a86fb

SHA256
855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

SHA512
aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9DA7.tmp.bat

Filesize
180B

MD5
37c786e4595db1a7dffb58cd51ab4435

SHA1
906f31afccbd15be75f16e2567300192a99c716e

SHA256
36992b61832d89eb76589aa530f2dc175a337cfb45709576b3aeec0af1124ae0

SHA512
81c26aca8a3965db3eb52ba5abd34e44ec1799a5213e98e8f2a6565c4aa248545b38a1faa021417a847748d21dbbeaba2aa417e6454ea9ff4d8c9c82d53a4e4a

Download Submit
C:\Users\Static\NTUSER.exe

Filesize
121KB

MD5
117a350a0991d312d62eea33933f4f9b

SHA1
3c4c2b9608bdf3b7e477cef26e12721187fb5558

SHA256
a52f043910c50f8d250162379935316f63db792bf9824afd5dc326e12676a089

SHA512
d09e19366b912189415c3eb8ca427afedbcd3baca280b33bad5e6817ec5ec01f09e4b9d5be32e63694a48c55bd962099182af64a34dbe2615fdb82963c497809

Download Submit
memory/4076-0-0x00007FF8F3493000-0x00007FF8F3495000-memory.dmp

Filesize
8KB

Download
memory/4076-1-0x000001C6D8380000-0x000001C6D83A4000-memory.dmp

Filesize
144KB

Download
memory/4076-2-0x00007FF8F3490000-0x00007FF8F3F52000-memory.dmp

Filesize
10.8MB

Download
memory/4076-7-0x00007FF8F3490000-0x00007FF8F3F52000-memory.dmp

Filesize
10.8MB

Download
memory/4364-11-0x00000205F6940000-0x00000205F69EA000-memory.dmp

Filesize
680KB

Download
memory/4364-12-0x00000205F6AC0000-0x00000205F6B36000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads