Malware Analysis Report

2024-08-06 12:02

Sample ID 240302-ehjk5sad23
Target TelegramRAT.exe
SHA256 70443d8dd1d0b52f392d95b50a3582f5a2038f66a46faeb635bd7dbe73643bcb
Tags
toxiceye rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

70443d8dd1d0b52f392d95b50a3582f5a2038f66a46faeb635bd7dbe73643bcb

Threat Level: Known bad

The file TelegramRAT.exe was found to be: Known bad.

Malicious Activity Summary

toxiceye rat trojan

Toxiceye family

ToxicEye

Deletes itself

Checks computer location settings

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

Enumerates processes with tasklist

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Uses Task Scheduler COM API

Opens file in notepad (likely ransom note)

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Process Discovery
T1057
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-03-02 03:56

Signatures

Toxiceye family

toxiceye

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-02 03:56

Reported

2024-03-02 03:59

Platform

win7-20240221-en

Max time kernel

121s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"

Signatures

ToxicEye

rat trojan toxiceye

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\System32\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A
N/A N/A C:\Windows\System32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Enumerates processes with tasklist

Description Indicator Process Target
N/A N/A C:\Windows\system32\tasklist.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\tasklist.exe N/A
Token: SeDebugPrivilege N/A C:\a\rat.exe N/A
Token: SeDebugPrivilege N/A C:\a\rat.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2244 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\schtasks.exe
PID 2244 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\schtasks.exe
PID 2244 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\schtasks.exe
PID 2244 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\cmd.exe
PID 2244 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\cmd.exe
PID 2244 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\cmd.exe
PID 2732 wrote to memory of 1584 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2732 wrote to memory of 1584 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2732 wrote to memory of 1584 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2732 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2732 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2732 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2732 wrote to memory of 2420 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2732 wrote to memory of 2420 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2732 wrote to memory of 2420 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2732 wrote to memory of 2440 N/A C:\Windows\System32\cmd.exe C:\a\rat.exe
PID 2732 wrote to memory of 2440 N/A C:\Windows\System32\cmd.exe C:\a\rat.exe
PID 2732 wrote to memory of 2440 N/A C:\Windows\System32\cmd.exe C:\a\rat.exe
PID 2440 wrote to memory of 1944 N/A C:\a\rat.exe C:\Windows\System32\schtasks.exe
PID 2440 wrote to memory of 1944 N/A C:\a\rat.exe C:\Windows\System32\schtasks.exe
PID 2440 wrote to memory of 1944 N/A C:\a\rat.exe C:\Windows\System32\schtasks.exe
PID 2440 wrote to memory of 1104 N/A C:\a\rat.exe C:\Windows\system32\WerFault.exe
PID 2440 wrote to memory of 1104 N/A C:\a\rat.exe C:\Windows\system32\WerFault.exe
PID 2440 wrote to memory of 1104 N/A C:\a\rat.exe C:\Windows\system32\WerFault.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe

"C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\a\rat.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpA4F6.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpA4F6.tmp.bat

C:\Windows\system32\tasklist.exe

Tasklist /fi "PID eq 2244"

C:\Windows\system32\find.exe

find ":"

C:\Windows\system32\timeout.exe

Timeout /T 1 /Nobreak

C:\a\rat.exe

"rat.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\a\rat.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2440 -s 1576

Network

Country Destination Domain Proto
US 8.8.8.8:53 google.com udp
US 8.8.8.8:53 api.Telegram.org udp
NL 149.154.167.220:443 api.Telegram.org tcp
NL 149.154.167.220:443 api.Telegram.org tcp

Files

memory/2244-0-0x00000000003B0000-0x00000000003DA000-memory.dmp

memory/2244-1-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

memory/2244-2-0x000000001A7F0000-0x000000001A870000-memory.dmp

memory/2244-5-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA4F6.tmp.bat

MD5 07dd398b3050143baf809739f8b3eb3a
SHA1 2fa09d041eceac5c0cd4e6905f6dad2a92b5b721
SHA256 8ec2685179d0d83f9e2f301862979d00f1d0f4dd77f3e04107dcbb2360f89e02
SHA512 d3fb159e2684a572e2edcc4c6aee7708ac46eb28b6ef41ea935781d371791950125a3e0ab76b55ab8a0339cb28ef883fa31be9ed8758ea624335c2438920a255

C:\a\rat.exe

MD5 a7f2f3eb00e6fada6eef7f6d4bad84ac
SHA1 7772bf4e931c3ea67e6d1366b10b495618dd6733
SHA256 70443d8dd1d0b52f392d95b50a3582f5a2038f66a46faeb635bd7dbe73643bcb
SHA512 d133efdaed62350a7fcd05ffd2bd1510a731c6f131a86b54f3e941ffddd450a797bfec205decd7de1b994288fd52ed6f015839b1228720edd0927a3322c7f9d4

memory/2440-10-0x0000000000980000-0x00000000009AA000-memory.dmp

memory/2440-11-0x000007FEF4CA0000-0x000007FEF568C000-memory.dmp

memory/2440-12-0x000007FEF4CA0000-0x000007FEF568C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-02 03:56

Reported

2024-03-02 03:59

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"

Signatures

ToxicEye

rat trojan toxiceye

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\a\rat.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A
N/A N/A C:\Windows\System32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Enumerates processes with tasklist

Description Indicator Process Target
N/A N/A C:\Windows\system32\tasklist.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\a\rat.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\tasklist.exe N/A
Token: SeDebugPrivilege N/A C:\a\rat.exe N/A
Token: SeDebugPrivilege N/A C:\a\rat.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\a\rat.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3620 wrote to memory of 988 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\schtasks.exe
PID 3620 wrote to memory of 988 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\schtasks.exe
PID 3620 wrote to memory of 3456 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\cmd.exe
PID 3620 wrote to memory of 3456 N/A C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe C:\Windows\System32\cmd.exe
PID 3456 wrote to memory of 4344 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 3456 wrote to memory of 4344 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 3456 wrote to memory of 2672 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 3456 wrote to memory of 2672 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 3456 wrote to memory of 3892 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 3456 wrote to memory of 3892 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 3456 wrote to memory of 3944 N/A C:\Windows\System32\cmd.exe C:\a\rat.exe
PID 3456 wrote to memory of 3944 N/A C:\Windows\System32\cmd.exe C:\a\rat.exe
PID 3944 wrote to memory of 2460 N/A C:\a\rat.exe C:\Windows\System32\schtasks.exe
PID 3944 wrote to memory of 2460 N/A C:\a\rat.exe C:\Windows\System32\schtasks.exe
PID 3568 wrote to memory of 1552 N/A C:\Windows\system32\OpenWith.exe C:\Windows\system32\NOTEPAD.EXE
PID 3568 wrote to memory of 1552 N/A C:\Windows\system32\OpenWith.exe C:\Windows\system32\NOTEPAD.EXE

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe

"C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\a\rat.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp3A.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp3A.tmp.bat

C:\Windows\system32\tasklist.exe

Tasklist /fi "PID eq 3620"

C:\Windows\system32\find.exe

find ":"

C:\Windows\system32\timeout.exe

Timeout /T 1 /Nobreak

C:\a\rat.exe

"rat.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\a\rat.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\a\autosteal.lock

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\a\bookmarks.txt

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 google.com udp
US 8.8.8.8:53 api.Telegram.org udp
NL 149.154.167.220:443 api.Telegram.org tcp
NL 149.154.167.220:443 api.Telegram.org tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
IE 172.253.116.95:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 95.116.253.172.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/3620-0-0x0000018982950000-0x000001898297A000-memory.dmp

memory/3620-1-0x00007FF8A1B10000-0x00007FF8A25D1000-memory.dmp

memory/3620-2-0x00000189848C0000-0x00000189848D0000-memory.dmp

memory/3620-7-0x00007FF8A1B10000-0x00007FF8A25D1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp3A.tmp.bat

MD5 c443cd4616db54f23e03c8bc930b5a4e
SHA1 7542e9c15a9159b107feea0cb9e7d9a4210baa2d
SHA256 105b18e383e0fc1f1b14241212f0ae5dcac3c5dd010f65b4238e0acff1f706ec
SHA512 128efd1075f69b0e44a7645c5b29d13da0f2abfac339ecb89aaecfba67e80accb9f6c8b7285ead395f9e587141c30ce9af7fa497cfb084630ca5f0fd3b24a9f0

C:\a\rat.exe

MD5 a7f2f3eb00e6fada6eef7f6d4bad84ac
SHA1 7772bf4e931c3ea67e6d1366b10b495618dd6733
SHA256 70443d8dd1d0b52f392d95b50a3582f5a2038f66a46faeb635bd7dbe73643bcb
SHA512 d133efdaed62350a7fcd05ffd2bd1510a731c6f131a86b54f3e941ffddd450a797bfec205decd7de1b994288fd52ed6f015839b1228720edd0927a3322c7f9d4

memory/3944-11-0x00007FF8A1B10000-0x00007FF8A25D1000-memory.dmp

memory/3944-12-0x00000180FFB30000-0x00000180FFB40000-memory.dmp

memory/3944-14-0x00000180FFEE0000-0x00000180FFEF2000-memory.dmp

memory/3944-15-0x00000180FFED0000-0x00000180FFEDA000-memory.dmp

memory/3944-17-0x00007FF8A1B10000-0x00007FF8A25D1000-memory.dmp

C:\a\bookmarks.txt

MD5 61f8a15f0bf3ef90a36796b6cbb7b105
SHA1 9a0893ee4bfb0e58c64902fc4da215dcbec12e3f
SHA256 678150f8aa675320e486b135418a7ed5b546514a5aa808588eccc12fe8cd2130
SHA512 5afb5a40e95b289db50db7aa151a5a526ef04824533fccd0ad3d6ea813cc5621b8009521d7f5db69fbcb1a46640e963427fd6b42721df26f1fbfc89f59a8abab