agenttesla | 9af31d18ef5af8d20ed75f9cc76185d119990e2adea7748c16562359a1dc3d5d

General

Target

0080900000000000004.exe
Size

508KB
MD5

697e07591d78360f5544a6d5d6f7cf65
SHA1

6462fa2d20234ebe218d43126d0b3e0d407e868c
SHA256

9af31d18ef5af8d20ed75f9cc76185d119990e2adea7748c16562359a1dc3d5d
SHA512

484e69510061cd2a6a9b7188de95c2b0c8c421f09a342ae505f671aa59f08f733fbf695c3e7af390b8357be5ff678e5472ec4755ab0f63a8c7e36806d5881948

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.ionos.mx
Port:
587
Username:
lety@solar-pro.mx
Password:
lp475869

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ionos.mx
Port:
587
Username:
lety@solar-pro.mx
Password:
lp475869

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral2/memory/3988-6-0x0000000004ED0000-0x0000000004ED3000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3948-11-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/3948-12-0x000000000044C9EE-mapping.dmp	family_agenttesla

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral2/memory/3988-7-0x000000000B2F0000-0x000000000B343000-memory.dmp	rezer0

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

0080900000000000004.exe

description pid process target process

PID 3988 set thread context of 3948 3988 0080900000000000004.exe 0080900000000000004.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

2684 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0080900000000000004.exe

pid process

3948 0080900000000000004.exe
3948 0080900000000000004.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0080900000000000004.exe0080900000000000004.exe

description pid process

Token: SeDebugPrivilege 3988 0080900000000000004.exe
Token: SeDebugPrivilege 3948 0080900000000000004.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

0080900000000000004.exe

pid process

3988 0080900000000000004.exe
3988 0080900000000000004.exe

description	pid	process	target process
PID 3988 set thread context of 3948	3988	0080900000000000004.exe	0080900000000000004.exe

pid	process
2684	schtasks.exe

pid	process
3948	0080900000000000004.exe
3948	0080900000000000004.exe

description	pid	process
Token: SeDebugPrivilege	3988	0080900000000000004.exe
Token: SeDebugPrivilege	3948	0080900000000000004.exe

pid	process
3988	0080900000000000004.exe
3988	0080900000000000004.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

0080900000000000004.exe0080900000000000004.exe

description	pid	process	target process
PID 3988 wrote to memory of 2684	3988	0080900000000000004.exe	schtasks.exe
PID 3988 wrote to memory of 2684	3988	0080900000000000004.exe	schtasks.exe
PID 3988 wrote to memory of 2684	3988	0080900000000000004.exe	schtasks.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3988 wrote to memory of 3948	3988	0080900000000000004.exe	0080900000000000004.exe
PID 3948 wrote to memory of 2504	3948	0080900000000000004.exe	netsh.exe
PID 3948 wrote to memory of 2504	3948	0080900000000000004.exe	netsh.exe
PID 3948 wrote to memory of 2504	3948	0080900000000000004.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\0080900000000000004.exe
"C:\Users\Admin\AppData\Local\Temp\0080900000000000004.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3988

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LsoUSx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1785.tmp"
2⤵
- Creates scheduled task(s)
PID:2684

C:\Users\Admin\AppData\Local\Temp\0080900000000000004.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3948

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2504

Network

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0080900000000000004.exe.log
MD5
b4f7a6a57cb46d94b72410eb6a6d45a9

SHA1
69f3596ffa027202d391444b769ceea0ae14c5f7

SHA256
23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

SHA512
be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1785.tmp
MD5
0ba7da637bb25302ae9701b3df8de7a8

SHA1
098ac627d4f4c2732c618d617da5ecfe2d8bc9ea

SHA256
dd4d0e35268730a02e30b25de97503c1e3515c5f79630471b258557557e0a9d4

SHA512
294dda41b75ee08ca711fa668643b6e4c4bb8e201f6814a5e5c2f1d03ae386ecb14dbee4f5e819db79fab3e4a04fc176ce2eb0ab011580a96986733c0f1595f8

Download Submit
memory/2504-21-0x0000000000000000-mapping.dmp

Download
memory/2684-9-0x0000000000000000-mapping.dmp

Download
memory/3948-14-0x00000000738E0000-0x0000000073FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3948-11-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/3948-12-0x000000000044C9EE-mapping.dmp

Download
memory/3948-19-0x0000000005020000-0x0000000005021000-memory.dmp

Filesize
4KB

Download
memory/3948-20-0x0000000005BF0000-0x0000000005BF1000-memory.dmp

Filesize
4KB

Download
memory/3988-6-0x0000000004ED0000-0x0000000004ED3000-memory.dmp

Filesize
12KB

Download
memory/3988-7-0x000000000B2F0000-0x000000000B343000-memory.dmp

Filesize
332KB

Download
memory/3988-8-0x000000000B3F0000-0x000000000B3F1000-memory.dmp

Filesize
4KB

Download
memory/3988-0-0x00000000738E0000-0x0000000073FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3988-4-0x0000000007A10000-0x0000000007A11000-memory.dmp

Filesize
4KB

Download
memory/3988-3-0x0000000007E70000-0x0000000007E71000-memory.dmp

Filesize
4KB

Download
memory/3988-5-0x0000000007970000-0x0000000007971000-memory.dmp

Filesize
4KB

Download
memory/3988-1-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads