agenttesla | fc8190f268303e801544fcbeee6d21ac32a72779103cec2e31a9f5963d5a0c55

General

Target
Inquiry.exe
Size 577KB
Sample200817-e7gt11ef1s
SHA256 fc8190f268303e801544fcbeee6d21ac32a72779103cec2e31a9f5963d5a0c55
MD5 652f686d72e4000d746b4c060ab3fa35
SHA1 0896c04f1530e8a453a2ee54f611d75eff02ba1a
SHA512 2ac56b4f1111e7926ad43a5fb46df5eb14a863ff15bd3022062164fb1578237dc73e2aeac8229da44115e11b6abfda7eb01179e2c76b6ac2458a69633dbd4a8a
MD5 SHA1 SHA512

Score

10^/10

agenttesla agilenet keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.plusholding.com.tr
Port
587
Username
[email protected]
Password
egeyurt2017

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2008-20-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2008-21-0x000000000045479E-mapping.dmp	family_agenttesla
behavioral1/memory/2008-23-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2008-24-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1404	winservie.exe
2008	InstallUtil.exe

Loads dropped DLL 4 IoCs

pid	Process
1460	Inquiry.exe
1460	Inquiry.exe
1404	winservie.exe
1404	winservie.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1460-3-0x0000000000280000-0x00000000002A1000-memory.dmp	agile_net

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\winservie = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\winservie.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1404 set thread context of 2008	1404	winservie.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1460	Inquiry.exe
1460	Inquiry.exe
1460	Inquiry.exe
1404	winservie.exe
1404	winservie.exe
1404	winservie.exe
2008	InstallUtil.exe
2008	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	Inquiry.exe
Token: SeDebugPrivilege	1404	winservie.exe
Token: SeDebugPrivilege	2008	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2008	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1064	1460	Inquiry.exe	24
PID 1460 wrote to memory of 1064	1460	Inquiry.exe	24
PID 1460 wrote to memory of 1064	1460	Inquiry.exe	24
PID 1460 wrote to memory of 1064	1460	Inquiry.exe	24
PID 1064 wrote to memory of 1052	1064	cmd.exe	26
PID 1064 wrote to memory of 1052	1064	cmd.exe	26
PID 1064 wrote to memory of 1052	1064	cmd.exe	26
PID 1064 wrote to memory of 1052	1064	cmd.exe	26
PID 1460 wrote to memory of 1404	1460	Inquiry.exe	27
PID 1460 wrote to memory of 1404	1460	Inquiry.exe	27
PID 1460 wrote to memory of 1404	1460	Inquiry.exe	27
PID 1460 wrote to memory of 1404	1460	Inquiry.exe	27
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30
PID 1404 wrote to memory of 2008	1404	winservie.exe	30

C:\Users\Admin\AppData\Local\Temp\Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winservie /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\winservie.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winservie /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\winservie.exe"
    3⤵
    - Adds Run key to start application
    PID:1052
- C:\Users\Admin\AppData\Roaming\winservie.exe
  "C:\Users\Admin\AppData\Roaming\winservie.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1404
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1404-12-0x00000000011D0000-0x00000000011D1000-memory.dmp

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memory/1404-11-0x00000000738C0000-0x0000000073FAE000-memory.dmp

Download

memory/1404-17-0x00000000009C0000-0x00000000009C3000-memory.dmp

Download

memory/1460-3-0x0000000000280000-0x00000000002A1000-memory.dmp

Download

memory/1460-0-0x00000000738C0000-0x0000000073FAE000-memory.dmp

Download

memory/1460-1-0x0000000000920000-0x0000000000921000-memory.dmp

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memory/2008-20-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/2008-23-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/2008-24-0x0000000000400000-0x000000000045A000-memory.dmp

Download

memory/2008-25-0x00000000738C0000-0x0000000073FAE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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