agenttesla | d3d05e0a1f06d4ea96b83681286dc9f230a4bcb82a9ae4fc9bb61dc20725e207

General

Target

New P.O 00076855.exe
Size

429KB
MD5

157bab4816b04ac920b174a76e54befd
SHA1

c7e1396c45839ac565b66152e4eee666239f7b90
SHA256

31bb52b28ff0c3c8aebce5ed265a1463e934d089030c38dc88d94ecb11cad660
SHA512

6a6093b80dbce529e8a2d2f0dc7d1fe1f7e3167a0bba08661b016646819a283f4313699ed955a0620301d0954b00a7a5c4ae6e58798bc508a7474d1e0761686a
SSDEEP

12288:QLdpoLWMr2QW3Y9XQPsNjDAm0+focuBJ0m1gss:QTyWMrzWo6gDT0l1XGss

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Signatures

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

AgentTesla payload 8 IoCs

resource	yara_rule
behavioral1/memory/2292-15-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla
behavioral1/memory/2292-14-0x0000000000380000-0x00000000003D0000-memory.dmp	family_agenttesla
behavioral1/memory/2292-13-0x0000000000380000-0x00000000003D0000-memory.dmp	family_agenttesla
behavioral1/memory/2292-11-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla
behavioral1/memory/2292-10-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla
behavioral1/memory/2292-27-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla
behavioral1/memory/2292-26-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla
behavioral1/memory/2292-28-0x0000000000400000-0x00000000004AC000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3052-0-0x0000000000400000-0x00000000004C4000-memory.dmp	upx
behavioral1/memory/3052-8-0x0000000000400000-0x00000000004C4000-memory.dmp	upx
behavioral1/memory/2292-15-0x0000000000400000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/2292-11-0x0000000000400000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/2292-10-0x0000000000400000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/3052-9-0x0000000002E40000-0x0000000002F04000-memory.dmp	upx
behavioral1/memory/2292-7-0x0000000000400000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/2292-4-0x0000000000400000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/2292-26-0x0000000000400000-0x00000000004AC000-memory.dmp	upx

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New P.O 00076855.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New P.O 00076855.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New P.O 00076855.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3052 set thread context of 2292	3052	New P.O 00076855.exe	28

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New P.O 00076855.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New P.O 00076855.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3052	New P.O 00076855.exe
2292	New P.O 00076855.exe
2292	New P.O 00076855.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3052	New P.O 00076855.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	New P.O 00076855.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2292	3052	New P.O 00076855.exe	28
PID 3052 wrote to memory of 2292	3052	New P.O 00076855.exe	28
PID 3052 wrote to memory of 2292	3052	New P.O 00076855.exe	28
PID 3052 wrote to memory of 2292	3052	New P.O 00076855.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New P.O 00076855.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New P.O 00076855.exe

C:\Users\Admin\AppData\Local\Temp\New P.O 00076855.exe
"C:\Users\Admin\AppData\Local\Temp\New P.O 00076855.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Users\Admin\AppData\Local\Temp\New P.O 00076855.exe
  "C:\Users\Admin\AppData\Local\Temp\New P.O 00076855.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2292-4-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-14-0x0000000000380000-0x00000000003D0000-memory.dmp

Filesize
320KB

Download
memory/2292-28-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-26-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-11-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-15-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-27-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-13-0x0000000000380000-0x00000000003D0000-memory.dmp

Filesize
320KB

Download
memory/2292-7-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2292-10-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/3052-9-0x0000000002E40000-0x0000000002F04000-memory.dmp

Filesize
784KB

Download
memory/3052-8-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/3052-0-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/3052-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/3052-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3052-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download

Analysis

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