agenttesla | bd17aef5a6e188bd70166012321f6e131a403a6b663df81be05d9f104a4718a7

General

Target

rKcYGbHqqjUGRo5.exe
Size

519KB
MD5

34442cce45a4466045fe1748ec4b652b
SHA1

74eb4fca763ed077169795e1a9d20a8d5d697e19
SHA256

bd17aef5a6e188bd70166012321f6e131a403a6b663df81be05d9f104a4718a7
SHA512

a5f1d55c1c9d0344cf5111a6438a49300c097fb8bf4350495d5c2795c6a547799fe5c5660af7b3f8e41d7aa77f255457ae29cfb9e3b0d7b03f989ac11c1ac5d6

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.medicare-equipment.com
Port:
587
Username:
[email protected]
Password:
AllTheBest777

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4664-125-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4664-126-0x000000000043766E-mapping.dmp	family_agenttesla
behavioral2/memory/4664-132-0x0000000005160000-0x000000000565E000-memory.dmp	family_agenttesla
behavioral2/memory/4664-137-0x0000000005160000-0x000000000565E000-memory.dmp	family_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:

rKcYGbHqqjUGRo5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rKcYGbHqqjUGRo5.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rKcYGbHqqjUGRo5.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rKcYGbHqqjUGRo5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rKcYGbHqqjUGRo5.exe

description pid process target process

PID 3392 set thread context of 4664 3392 rKcYGbHqqjUGRo5.exe rKcYGbHqqjUGRo5.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

4040 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rKcYGbHqqjUGRo5.exerKcYGbHqqjUGRo5.exe

pid process

3392 rKcYGbHqqjUGRo5.exe
3392 rKcYGbHqqjUGRo5.exe
4664 rKcYGbHqqjUGRo5.exe
4664 rKcYGbHqqjUGRo5.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rKcYGbHqqjUGRo5.exerKcYGbHqqjUGRo5.exe

description pid process

Token: SeDebugPrivilege 3392 rKcYGbHqqjUGRo5.exe
Token: SeDebugPrivilege 4664 rKcYGbHqqjUGRo5.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

rKcYGbHqqjUGRo5.exerKcYGbHqqjUGRo5.exe

pid process

3392 rKcYGbHqqjUGRo5.exe
3392 rKcYGbHqqjUGRo5.exe
4664 rKcYGbHqqjUGRo5.exe

description	pid	process	target process
PID 3392 set thread context of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe

pid	process
4040	schtasks.exe

pid	process
3392	rKcYGbHqqjUGRo5.exe
3392	rKcYGbHqqjUGRo5.exe
4664	rKcYGbHqqjUGRo5.exe
4664	rKcYGbHqqjUGRo5.exe

description	pid	process
Token: SeDebugPrivilege	3392	rKcYGbHqqjUGRo5.exe
Token: SeDebugPrivilege	4664	rKcYGbHqqjUGRo5.exe

pid	process
3392	rKcYGbHqqjUGRo5.exe
3392	rKcYGbHqqjUGRo5.exe
4664	rKcYGbHqqjUGRo5.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rKcYGbHqqjUGRo5.exe

description	pid	process	target process
PID 3392 wrote to memory of 4040	3392	rKcYGbHqqjUGRo5.exe	schtasks.exe
PID 3392 wrote to memory of 4040	3392	rKcYGbHqqjUGRo5.exe	schtasks.exe
PID 3392 wrote to memory of 4040	3392	rKcYGbHqqjUGRo5.exe	schtasks.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe
PID 3392 wrote to memory of 4664	3392	rKcYGbHqqjUGRo5.exe	rKcYGbHqqjUGRo5.exe

outlook_office_path 1 IoCs

Processes:

rKcYGbHqqjUGRo5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rKcYGbHqqjUGRo5.exe

outlook_win_path 1 IoCs

Processes:

rKcYGbHqqjUGRo5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rKcYGbHqqjUGRo5.exe

C:\Users\Admin\AppData\Local\Temp\rKcYGbHqqjUGRo5.exe
"C:\Users\Admin\AppData\Local\Temp\rKcYGbHqqjUGRo5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wWgFfL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6ABC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4040
- C:\Users\Admin\AppData\Local\Temp\rKcYGbHqqjUGRo5.exe
  "C:\Users\Admin\AppData\Local\Temp\rKcYGbHqqjUGRo5.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rKcYGbHqqjUGRo5.exe.log

MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/3392-117-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/3392-118-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

Filesize
4KB

Download
memory/3392-119-0x0000000004E40000-0x0000000004ED2000-memory.dmp

Filesize
584KB

Download
memory/3392-120-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/3392-121-0x00000000091C0000-0x00000000091C8000-memory.dmp

Filesize
32KB

Download
memory/3392-122-0x0000000009280000-0x0000000009281000-memory.dmp

Filesize
4KB

Download
memory/3392-123-0x0000000009320000-0x0000000009378000-memory.dmp

Filesize
352KB

Download
memory/3392-115-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/4040-124-0x0000000000000000-mapping.dmp

Download
memory/4664-126-0x000000000043766E-mapping.dmp

Download
memory/4664-125-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4664-132-0x0000000005160000-0x000000000565E000-memory.dmp

Filesize
5.0MB

Download
memory/4664-133-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/4664-134-0x0000000005DC0000-0x0000000005DC1000-memory.dmp

Filesize
4KB

Download
memory/4664-137-0x0000000005160000-0x000000000565E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads