agenttesla | fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618

General

Target

Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Size

870KB
MD5

84fc8471bb943cd772536922808494be
SHA1

c05e01390eb3f59f58ecf92e68c3975197c1f1c6
SHA256

fec13aa5cd5a5f883361b1192f68fe5f76da2e01437d99d767c383f5137da618
SHA512

1e7c4463f89231072242cffdef68a732322884282e8ac56e8aab9887d1c65ed7e496a9f1e3b0ecc10b03ffc01c03db6643428568df4e077233794331f5343ad6
SSDEEP

12288:Pm2iNNEisUH/hPBKkKHUa01o3DvwuxG/UffSaxGkHIeCRoFQUW9d+pnEcTgVOGEo:e1XEWpPBKkmQo3jwd/UfDBjQ9+ixW1q

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6315598701:AAF2CsdeWHvEuw0HSURtUQQu4FuqwvM5AOA/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20230918_073809_405251-PDF.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34

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

System Information Discovery
T1082

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/Job

T1053

pid	Process
2472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
2284	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
2284	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
2516	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Token: SeDebugPrivilege	2284	Halkbank_Ekstre_20230918_073809_405251-PDF.exe
Token: SeDebugPrivilege	2516	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2284	Halkbank_Ekstre_20230918_073809_405251-PDF.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2516	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	30
PID 2040 wrote to memory of 2516	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	30
PID 2040 wrote to memory of 2516	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	30
PID 2040 wrote to memory of 2516	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	30
PID 2040 wrote to memory of 2472	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	32
PID 2040 wrote to memory of 2472	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	32
PID 2040 wrote to memory of 2472	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	32
PID 2040 wrote to memory of 2472	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	32
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34
PID 2040 wrote to memory of 2284	2040	Halkbank_Ekstre_20230918_073809_405251-PDF.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20230918_073809_405251-PDF.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20230918_073809_405251-PDF.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230918_073809_405251-PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230918_073809_405251-PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TBjeFzdy.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2516
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TBjeFzdy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp686.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2472
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230918_073809_405251-PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230918_073809_405251-PDF.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp686.tmp

Filesize
1KB

MD5
d0572765d94b15ac252aa6accf87e8c9

SHA1
da0f0f042184cd1597eaf4ab2e516293b9090766

SHA256
b5610e4361ca902deaddaabe95d9093b876d786f44eb3df99eb0f84f5909ba7d

SHA512
f430af16bb8dd2326beecdda3c330b80c669b539f0addb4c4198fd37ef35223ed4b1fa31fe740b194a70c6cb8eb60df5a5d0553cd4be685729b8c2d50279d4ca

Download Submit
memory/2040-1-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2040-0-0x00000000012B0000-0x0000000001390000-memory.dmp

Filesize
896KB

Download
memory/2040-2-0x0000000001240000-0x0000000001280000-memory.dmp

Filesize
256KB

Download
memory/2040-3-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/2040-4-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2040-5-0x0000000001240000-0x0000000001280000-memory.dmp

Filesize
256KB

Download
memory/2040-6-0x00000000003B0000-0x00000000003B8000-memory.dmp

Filesize
32KB

Download
memory/2040-7-0x00000000003C0000-0x00000000003CC000-memory.dmp

Filesize
48KB

Download
memory/2040-8-0x0000000005970000-0x00000000059EE000-memory.dmp

Filesize
504KB

Download
memory/2040-25-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2284-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-31-0x00000000003B0000-0x00000000003F0000-memory.dmp

Filesize
256KB

Download
memory/2284-19-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-22-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-27-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-24-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-30-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2284-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2284-38-0x00000000003B0000-0x00000000003F0000-memory.dmp

Filesize
256KB

Download
memory/2284-37-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-34-0x0000000002240000-0x0000000002280000-memory.dmp

Filesize
256KB

Download
memory/2516-35-0x0000000002240000-0x0000000002280000-memory.dmp

Filesize
256KB

Download
memory/2516-36-0x0000000072C80000-0x000000007322B000-memory.dmp

Filesize
5.7MB

Download
memory/2516-33-0x0000000072C80000-0x000000007322B000-memory.dmp

Filesize
5.7MB

Download
memory/2516-32-0x0000000072C80000-0x000000007322B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads