agenttesla | d25f524faf11aee50288503f06409544fe07433df48455e89b2376de13255ff5

General

Target

T. HALK BANKASI A.S.exe
Size

489KB
MD5

be55dd6e2a8fb0d8e12fa824aa57d8c2
SHA1

cbab35a49fa6c4597ccbcf8ff19b3a880457ff8d
SHA256

d25f524faf11aee50288503f06409544fe07433df48455e89b2376de13255ff5
SHA512

75f8f91a5abe004aff29a15d21616580c61aac677a04cfee9893a9475242f33d25212bc432c53d5f4b4c38a85366fbe3493b897cee0824b4867111cf9f0d7930

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Hunter$#@145722

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/1904-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1904-15-0x00000000004479FE-mapping.dmp	family_agenttesla
behavioral1/memory/1904-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1904-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
600	winservie.exe
1904	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
1072	T. HALK BANKASI A.S.exe
600	winservie.exe

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
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
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 600 set thread context of 1904	600	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
1072	T. HALK BANKASI A.S.exe
1072	T. HALK BANKASI A.S.exe
1072	T. HALK BANKASI A.S.exe
600	winservie.exe
600	winservie.exe
600	winservie.exe
1904	InstallUtil.exe
1904	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	T. HALK BANKASI A.S.exe
Token: SeDebugPrivilege	600	winservie.exe
Token: SeDebugPrivilege	1904	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1904	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1476	1072	T. HALK BANKASI A.S.exe	24
PID 1072 wrote to memory of 1476	1072	T. HALK BANKASI A.S.exe	24
PID 1072 wrote to memory of 1476	1072	T. HALK BANKASI A.S.exe	24
PID 1072 wrote to memory of 1476	1072	T. HALK BANKASI A.S.exe	24
PID 1476 wrote to memory of 292	1476	cmd.exe	26
PID 1476 wrote to memory of 292	1476	cmd.exe	26
PID 1476 wrote to memory of 292	1476	cmd.exe	26
PID 1476 wrote to memory of 292	1476	cmd.exe	26
PID 1072 wrote to memory of 600	1072	T. HALK BANKASI A.S.exe	27
PID 1072 wrote to memory of 600	1072	T. HALK BANKASI A.S.exe	27
PID 1072 wrote to memory of 600	1072	T. HALK BANKASI A.S.exe	27
PID 1072 wrote to memory of 600	1072	T. HALK BANKASI A.S.exe	27
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30
PID 600 wrote to memory of 1904	600	winservie.exe	30

C:\Users\Admin\AppData\Local\Temp\T. HALK BANKASI A.S.exe
"C:\Users\Admin\AppData\Local\Temp\T. HALK BANKASI A.S.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\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:1476
- - 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:292
- 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:600
- - 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:1904

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/1904-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1904-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1904-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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