agenttesla | 1068cb29f89d81ad0348c72c63a90588f35b9a520e57764daeed44dc22192c1a

Analysis

max time kernel
20s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
13/03/2023, 13:23

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General

Target

6hDkZtFd2S.exe
Size

1.1MB
MD5

21377e758f4ee739965642b393f13fe8
SHA1

edbfaed7cac6642cce909d18f8ee07aec722d874
SHA256

1068cb29f89d81ad0348c72c63a90588f35b9a520e57764daeed44dc22192c1a
SHA512

39f55734563fdbae2600f53bf07a68c450e76668517b25332d4f7672fc7e0409514cba19fe9fa2f01a140fb8973a95467b64e5e4b3d05400efdc8bf64a363d67
SSDEEP

12288:3bq7bcal64fG2Ms7cfl9/C8JAP2f3wBt6UQEM7ef7OB8GFX0w2WbmjoaTRgkSlTF:+fKWM82faZ4gJSGCiNOyjgT7PVf

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.kumbarasigorta.com
Port:
587
Username:
[email protected]
Password:
123@Kumbarasigorta
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\TaskKill\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\Иисус.sys"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1952	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
472	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	6hDkZtFd2S.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 644	1952	svchost.exe	36

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1584	644	WerFault.exe	36

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1452	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
268	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2012	6hDkZtFd2S.exe
1952	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1952	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	6hDkZtFd2S.exe
Token: SeDebugPrivilege	1952	svchost.exe
Token: SeDebugPrivilege	1952	svchost.exe
Token: SeLoadDriverPrivilege	1952	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 1076	2012	6hDkZtFd2S.exe	28
PID 2012 wrote to memory of 1076	2012	6hDkZtFd2S.exe	28
PID 2012 wrote to memory of 1076	2012	6hDkZtFd2S.exe	28
PID 2012 wrote to memory of 472	2012	6hDkZtFd2S.exe	29
PID 2012 wrote to memory of 472	2012	6hDkZtFd2S.exe	29
PID 2012 wrote to memory of 472	2012	6hDkZtFd2S.exe	29
PID 472 wrote to memory of 268	472	cmd.exe	32
PID 472 wrote to memory of 268	472	cmd.exe	32
PID 472 wrote to memory of 268	472	cmd.exe	32
PID 1076 wrote to memory of 1452	1076	cmd.exe	33
PID 1076 wrote to memory of 1452	1076	cmd.exe	33
PID 1076 wrote to memory of 1452	1076	cmd.exe	33
PID 472 wrote to memory of 1952	472	cmd.exe	34
PID 472 wrote to memory of 1952	472	cmd.exe	34
PID 472 wrote to memory of 1952	472	cmd.exe	34
PID 1952 wrote to memory of 1436	1952	svchost.exe	35
PID 1952 wrote to memory of 1436	1952	svchost.exe	35
PID 1952 wrote to memory of 1436	1952	svchost.exe	35
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 1952 wrote to memory of 644	1952	svchost.exe	36
PID 644 wrote to memory of 1584	644	SetupUtility.exe	37
PID 644 wrote to memory of 1584	644	SetupUtility.exe	37
PID 644 wrote to memory of 1584	644	SetupUtility.exe	37
PID 644 wrote to memory of 1584	644	SetupUtility.exe	37

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\6hDkZtFd2S.exe
"C:\Users\Admin\AppData\Local\Temp\6hDkZtFd2S.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:1452
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5081.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:472
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:268
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Sets service image path in registry
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: LoadsDriver
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1952
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe"
      4⤵
      PID:1436
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\v4.7.03062\SetupUtility.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SetupCache\v4.7.03062\SetupUtility.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:644
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 644 -s 168
        5⤵
        Program crash
        
        PID:1584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5081.tmp.bat

Filesize
151B

MD5
501f14866b11190425b6dcc25e62153a

SHA1
1d6544aeb504456fad86bbb955bb5f79261885c4

SHA256
0f8a71584bd523131cbea06c85b8284c6c5bd936c852d2d22b9940152cdcd1d1

SHA512
3530a2cec192115c4f5cc26308d086604c14da19515680c56e11b7201aeacf49d25582f81f73a9d65163f93c3ec825d85d4d3408dba8821b6ba5f3c7548aa917

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5081.tmp.bat

Filesize
151B

MD5
501f14866b11190425b6dcc25e62153a

SHA1
1d6544aeb504456fad86bbb955bb5f79261885c4

SHA256
0f8a71584bd523131cbea06c85b8284c6c5bd936c852d2d22b9940152cdcd1d1

SHA512
3530a2cec192115c4f5cc26308d086604c14da19515680c56e11b7201aeacf49d25582f81f73a9d65163f93c3ec825d85d4d3408dba8821b6ba5f3c7548aa917

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
1.1MB

MD5
21377e758f4ee739965642b393f13fe8

SHA1
edbfaed7cac6642cce909d18f8ee07aec722d874

SHA256
1068cb29f89d81ad0348c72c63a90588f35b9a520e57764daeed44dc22192c1a

SHA512
39f55734563fdbae2600f53bf07a68c450e76668517b25332d4f7672fc7e0409514cba19fe9fa2f01a140fb8973a95467b64e5e4b3d05400efdc8bf64a363d67

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
1.1MB

MD5
21377e758f4ee739965642b393f13fe8

SHA1
edbfaed7cac6642cce909d18f8ee07aec722d874

SHA256
1068cb29f89d81ad0348c72c63a90588f35b9a520e57764daeed44dc22192c1a

SHA512
39f55734563fdbae2600f53bf07a68c450e76668517b25332d4f7672fc7e0409514cba19fe9fa2f01a140fb8973a95467b64e5e4b3d05400efdc8bf64a363d67

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe

Filesize
1.1MB

MD5
21377e758f4ee739965642b393f13fe8

SHA1
edbfaed7cac6642cce909d18f8ee07aec722d874

SHA256
1068cb29f89d81ad0348c72c63a90588f35b9a520e57764daeed44dc22192c1a

SHA512
39f55734563fdbae2600f53bf07a68c450e76668517b25332d4f7672fc7e0409514cba19fe9fa2f01a140fb8973a95467b64e5e4b3d05400efdc8bf64a363d67

Download Submit
memory/644-72-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1952-69-0x00000000011E0000-0x0000000001306000-memory.dmp

Filesize
1.1MB

Download
memory/1952-70-0x000000001AC30000-0x000000001ACB0000-memory.dmp

Filesize
512KB

Download
memory/2012-54-0x0000000000BD0000-0x0000000000CF6000-memory.dmp

Filesize
1.1MB

Download
memory/2012-55-0x0000000000700000-0x000000000076E000-memory.dmp

Filesize
440KB

Download