toxiceye | ad14b62650cdbe1118aa5a601682b4d8bea1a432db985fb3e96de1c9fc1e5e1c

Reason

Machine shutdown

General

Target

ChromeUpdate.exe
Size

111KB
MD5

5dce69d8563e7d4a8f82e5be8b2f1a62
SHA1

1458edbb836f33749682b557ab8095afd3bcc0cf
SHA256

ad14b62650cdbe1118aa5a601682b4d8bea1a432db985fb3e96de1c9fc1e5e1c
SHA512

e3845e4ab3e0f6df8075850c0c8a4c97caaf71d1bdc969d82749f3a567818d854fb4bcce9f75693eb8cd8e0280334a7c2f0da81e6f5756ca8e1cff7e55ce474f
SSDEEP

1536:7+bQeCwEXM91qQIwiG39Wr1m8ndbhHqI6JQWqzCrAZuulvsp:Cb1ClXbG30ro8dbZqHJQWqzCrAZuu+p

Score

10^/10

toxiceye discovery rat trojan

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot7742822790:AAHkizf3bilCkIqp8NNVcbWObKSVKo8Xifo/sendMessage?chat_id=7053620590

Signatures

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

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ChromeUpdate.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Update.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	Update.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
3088	tasklist.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1380	timeout.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
4324	schtasks.exe
4496	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2796	Update.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2796	Update.exe
2796	Update.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	ChromeUpdate.exe
Token: SeDebugPrivilege	3088	tasklist.exe
Token: SeDebugPrivilege	2796	Update.exe
Token: SeDebugPrivilege	2796	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2796	Update.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 4496	3004	ChromeUpdate.exe	87
PID 3004 wrote to memory of 4496	3004	ChromeUpdate.exe	87
PID 3004 wrote to memory of 840	3004	ChromeUpdate.exe	89
PID 3004 wrote to memory of 840	3004	ChromeUpdate.exe	89
PID 840 wrote to memory of 3088	840	cmd.exe	91
PID 840 wrote to memory of 3088	840	cmd.exe	91
PID 840 wrote to memory of 1640	840	cmd.exe	92
PID 840 wrote to memory of 1640	840	cmd.exe	92
PID 840 wrote to memory of 1380	840	cmd.exe	93
PID 840 wrote to memory of 1380	840	cmd.exe	93
PID 840 wrote to memory of 2796	840	cmd.exe	94
PID 840 wrote to memory of 2796	840	cmd.exe	94
PID 2796 wrote to memory of 4324	2796	Update.exe	96
PID 2796 wrote to memory of 4324	2796	Update.exe	96

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\ChromeUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\ChromeUpdate.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4496
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB21A.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpB21A.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:840
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 3004"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:3088
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:1640
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:1380
- - C:\Users\Update\Update.exe
    "Update.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2796
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:4324

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\Temp\tmpB21A.tmp.bat

Filesize
190B

MD5
cdd08e032d17ca7078df1bb0d568d4f8

SHA1
eea526f8dfd80816781e3ca9c982798d8b9012f5

SHA256
43349aa6e1acc66bcfc29925e61ca70c906d2357984018e2dec50cc09122e70f

SHA512
298c670745c95de9d8c49d38e399111ef3ed90b830303cf4d8d5de0e0a9b1c0dd1eec5cbad3dd0a216e2b4f86bd113cf769ed148cd31f7a85116f73d6743b23e

Download Submit
C:\Users\Update\Update.exe

Filesize
111KB

MD5
5dce69d8563e7d4a8f82e5be8b2f1a62

SHA1
1458edbb836f33749682b557ab8095afd3bcc0cf

SHA256
ad14b62650cdbe1118aa5a601682b4d8bea1a432db985fb3e96de1c9fc1e5e1c

SHA512
e3845e4ab3e0f6df8075850c0c8a4c97caaf71d1bdc969d82749f3a567818d854fb4bcce9f75693eb8cd8e0280334a7c2f0da81e6f5756ca8e1cff7e55ce474f

Download Submit
memory/3004-0-0x00007FF909AE3000-0x00007FF909AE5000-memory.dmp

Filesize
8KB

Download
memory/3004-1-0x000002A395480000-0x000002A3954A2000-memory.dmp

Filesize
136KB

Download
memory/3004-2-0x00007FF909AE0000-0x00007FF90A5A1000-memory.dmp

Filesize
10.8MB

Download
memory/3004-7-0x00007FF909AE0000-0x00007FF90A5A1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads