agenttesla | b2083ce7d4550ceaccac4b45679bfa5a9c8168adee4d7c79b7a6b566e597ddf9

General

Target

SOA APRIL.exe
Size

443KB
MD5

b4918de9ccfdf564a629cea7e3b82195
SHA1

aab1d0e71ce72baffc39ce5f9fd3fc5aad0ec8d9
SHA256

c57c75b73874a793db4640a20bf8f89c57d8b95c9165a721e3a71f5693127c49
SHA512

f50ebdab2e8c5c2598ef52eae7a2c0d9f53900f0c26cf17cfd441051390d083a0881d1eb80eb713ef8d2e96633478d654219c07fd5178881919bf78801ed3d41

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tolipgoldenplaza.com
Port:
587
Username:
[email protected]
Password:
Golden@#$2019

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
behavioral1/memory/388-56-0x00000000003D0000-0x00000000003D8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/948-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/948-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/948-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/948-66-0x000000000044C97E-mapping.dmp	family_agenttesla
behavioral1/memory/948-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/948-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/388-57-0x0000000000590000-0x00000000005E8000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

SOA APRIL.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts SOA APRIL.exe
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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	SOA APRIL.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

SOA APRIL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SOA APRIL.exe

description pid process target process

PID 388 set thread context of 948 388 SOA APRIL.exe SOA APRIL.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

2000 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

600 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

pid process

388 SOA APRIL.exe
948 SOA APRIL.exe
948 SOA APRIL.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

description pid process

Token: SeDebugPrivilege 388 SOA APRIL.exe
Token: SeDebugPrivilege 948 SOA APRIL.exe

description	pid	process	target process
PID 388 set thread context of 948	388	SOA APRIL.exe	SOA APRIL.exe

pid	process
2000	schtasks.exe

pid	process
600	REG.exe

pid	process
388	SOA APRIL.exe
948	SOA APRIL.exe
948	SOA APRIL.exe

description	pid	process
Token: SeDebugPrivilege	388	SOA APRIL.exe
Token: SeDebugPrivilege	948	SOA APRIL.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

description	pid	process	target process
PID 388 wrote to memory of 2000	388	SOA APRIL.exe	schtasks.exe
PID 388 wrote to memory of 2000	388	SOA APRIL.exe	schtasks.exe
PID 388 wrote to memory of 2000	388	SOA APRIL.exe	schtasks.exe
PID 388 wrote to memory of 2000	388	SOA APRIL.exe	schtasks.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 388 wrote to memory of 948	388	SOA APRIL.exe	SOA APRIL.exe
PID 948 wrote to memory of 600	948	SOA APRIL.exe	REG.exe
PID 948 wrote to memory of 600	948	SOA APRIL.exe	REG.exe
PID 948 wrote to memory of 600	948	SOA APRIL.exe	REG.exe
PID 948 wrote to memory of 600	948	SOA APRIL.exe	REG.exe
PID 948 wrote to memory of 1100	948	SOA APRIL.exe	netsh.exe
PID 948 wrote to memory of 1100	948	SOA APRIL.exe	netsh.exe
PID 948 wrote to memory of 1100	948	SOA APRIL.exe	netsh.exe
PID 948 wrote to memory of 1100	948	SOA APRIL.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

SOA APRIL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe

outlook_win_path 1 IoCs

Processes:

SOA APRIL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe

C:\Users\Admin\AppData\Local\Temp\SOA APRIL.exe
"C:\Users\Admin\AppData\Local\Temp\SOA APRIL.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:388

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PzcvEUFxw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA57.tmp"
2⤵
- Creates scheduled task(s)
PID:2000

C:\Users\Admin\AppData\Local\Temp\SOA APRIL.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:948

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:600

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1100

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

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFA57.tmp
Filesize
1KB

MD5
1c44ed5e27cd65c3e08905a30f1b9b5c

SHA1
22d555d5f91f49aef5751cd7b3eb196e04831943

SHA256
57f13514a462d0412083df231c85dddb80abaa1273cee9df77d048f3fa799e67

SHA512
722e8631d7c0f5ea0f9652b722ff10d6f5c4ee7823ea2f5aca63838d861e0da284bf01ac7c312274157a47b19a89dd34a2e52c9b2e5e834341c046d5c0212a3d

Download Submit
memory/388-54-0x0000000000EA0000-0x0000000000F16000-memory.dmp

Filesize
472KB

Download
memory/388-55-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download
memory/388-56-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/388-57-0x0000000000590000-0x00000000005E8000-memory.dmp

Filesize
352KB

Download
memory/600-72-0x0000000000000000-mapping.dmp

Download
memory/948-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-66-0x000000000044C97E-mapping.dmp

Download
memory/948-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/948-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1100-73-0x0000000000000000-mapping.dmp

Download
memory/2000-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads