agenttesla | b969c39c4378266f7e9ebdd2287ee8c32cb9bba7f6514db54bf2babca30403e8

General

Target

Halkbank,pdf.exe
Size

6KB
MD5

8d936312a59afa52e18a4d665755690d
SHA1

aa34c27cdf073eb5c54e371714d3d68a626bbbd8
SHA256

ee511bade3822feb689576b65cb3e490e9459c11c5b6583b36920f742c1bd99d
SHA512

b36924fe5af405e6447fbf01d6d9c75cfe9dc335e36b64ea8982e59a1d9ac48dde4855f5c84cdcc21fb4d4dcbbfca1e485bbd32f04b10d67c1dc577aab9abd65
SSDEEP

96:awqkGAzKfGe7DVys+BWfik85EOd/vSGQeMFnU:N4DUDEPYEOdES

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.rimiapparelsltd.com
Port:
587
Username:
[email protected]
Password:
Everest10@
Email To:
[email protected]

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
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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Halkbank,pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Halkbank,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Qvgfaekv = "\"C:\\Users\\Admin\\AppData\\Roaming\\Cmubi\\Qvgfaekv.exe\""	Halkbank,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.

Processes:

flow ioc

7 api.ipify.org
6 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank,pdf.exe

description pid process target process

PID 1004 set thread context of 1728 1004 Halkbank,pdf.exe Halkbank,pdf.exe
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 4 IoCs

Processes:

powershell.exeHalkbank,pdf.exe

pid process

1960 powershell.exe
1728 Halkbank,pdf.exe
1728 Halkbank,pdf.exe
1728 Halkbank,pdf.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Halkbank,pdf.exepowershell.exeHalkbank,pdf.exe

description pid process

Token: SeDebugPrivilege 1004 Halkbank,pdf.exe
Token: SeDebugPrivilege 1960 powershell.exe
Token: SeDebugPrivilege 1728 Halkbank,pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Halkbank,pdf.exe

pid process

1728 Halkbank,pdf.exe

flow	ioc
7	api.ipify.org
6	api.ipify.org

description	pid	process	target process
PID 1004 set thread context of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe

pid	process
1960	powershell.exe
1728	Halkbank,pdf.exe
1728	Halkbank,pdf.exe
1728	Halkbank,pdf.exe

description	pid	process
Token: SeDebugPrivilege	1004	Halkbank,pdf.exe
Token: SeDebugPrivilege	1960	powershell.exe
Token: SeDebugPrivilege	1728	Halkbank,pdf.exe

pid	process
1728	Halkbank,pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Halkbank,pdf.exe

description	pid	process	target process
PID 1004 wrote to memory of 1960	1004	Halkbank,pdf.exe	powershell.exe
PID 1004 wrote to memory of 1960	1004	Halkbank,pdf.exe	powershell.exe
PID 1004 wrote to memory of 1960	1004	Halkbank,pdf.exe	powershell.exe
PID 1004 wrote to memory of 1960	1004	Halkbank,pdf.exe	powershell.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe
PID 1004 wrote to memory of 1728	1004	Halkbank,pdf.exe	Halkbank,pdf.exe

outlook_office_path 1 IoCs

Processes:

Halkbank,pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

outlook_win_path 1 IoCs

Processes:

Halkbank,pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1004

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQA3AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1960

C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe
C:\Users\Admin\AppData\Local\Temp\Halkbank,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:1728

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1004-55-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/1004-56-0x0000000005A30000-0x0000000005C4A000-memory.dmp

Filesize
2.1MB

Download
memory/1004-54-0x0000000001290000-0x0000000001298000-memory.dmp

Filesize
32KB

Download
memory/1728-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-72-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-68-0x0000000000437F4E-mapping.dmp

Download
memory/1728-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1728-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1960-57-0x0000000000000000-mapping.dmp

Download
memory/1960-61-0x000000006E860000-0x000000006EE0B000-memory.dmp

Filesize
5.7MB

Download
memory/1960-60-0x000000006E860000-0x000000006EE0B000-memory.dmp

Filesize
5.7MB

Download
memory/1960-59-0x000000006E860000-0x000000006EE0B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads