agenttesla | ba0da96a27a70f0c5a5a21921d50fd32ae89319fec130ddb50691d039f876fa6

General

Target

SOA APRIL.exe
Size

421KB
MD5

dd5f37195ac446c6f7e09321bcb64a63
SHA1

45e979b5abc28b86d3b277b64f8992aec3a4b277
SHA256

1753cdd1b934ad14f3b6a767859c941a2f5a3a734834a9ae2ca5204281b1974c
SHA512

d50d18c69d93ac9b4811aa8a63d0906e795f2d41f05a9e8b3166eda0a7904e7e426c95b3afabed567f78f31b74dfab78cc00e151c403b27d0d838f0d608c081d

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/1660-56-0x00000000002C0000-0x00000000002C8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1132-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1132-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1132-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1132-66-0x000000000044C97E-mapping.dmp	family_agenttesla
behavioral1/memory/1132-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1132-70-0x0000000000400000-0x0000000000452000-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/1660-57-0x0000000005030000-0x0000000005088000-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\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SOA APRIL.exe
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

SOA APRIL.exe

description pid process target process

PID 1660 set thread context of 1132 1660 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

1732 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1464 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

pid process

1660 SOA APRIL.exe
1660 SOA APRIL.exe
1660 SOA APRIL.exe
1132 SOA APRIL.exe
1132 SOA APRIL.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

description pid process

Token: SeDebugPrivilege 1660 SOA APRIL.exe
Token: SeDebugPrivilege 1132 SOA APRIL.exe

description	pid	process	target process
PID 1660 set thread context of 1132	1660	SOA APRIL.exe	SOA APRIL.exe

pid	process
1732	schtasks.exe

pid	process
1464	REG.exe

pid	process
1660	SOA APRIL.exe
1660	SOA APRIL.exe
1660	SOA APRIL.exe
1132	SOA APRIL.exe
1132	SOA APRIL.exe

description	pid	process
Token: SeDebugPrivilege	1660	SOA APRIL.exe
Token: SeDebugPrivilege	1132	SOA APRIL.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

SOA APRIL.exeSOA APRIL.exe

description	pid	process	target process
PID 1660 wrote to memory of 1732	1660	SOA APRIL.exe	schtasks.exe
PID 1660 wrote to memory of 1732	1660	SOA APRIL.exe	schtasks.exe
PID 1660 wrote to memory of 1732	1660	SOA APRIL.exe	schtasks.exe
PID 1660 wrote to memory of 1732	1660	SOA APRIL.exe	schtasks.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1660 wrote to memory of 1132	1660	SOA APRIL.exe	SOA APRIL.exe
PID 1132 wrote to memory of 1464	1132	SOA APRIL.exe	REG.exe
PID 1132 wrote to memory of 1464	1132	SOA APRIL.exe	REG.exe
PID 1132 wrote to memory of 1464	1132	SOA APRIL.exe	REG.exe
PID 1132 wrote to memory of 1464	1132	SOA APRIL.exe	REG.exe
PID 1132 wrote to memory of 1912	1132	SOA APRIL.exe	netsh.exe
PID 1132 wrote to memory of 1912	1132	SOA APRIL.exe	netsh.exe
PID 1132 wrote to memory of 1912	1132	SOA APRIL.exe	netsh.exe
PID 1132 wrote to memory of 1912	1132	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:1660

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hojwConhXJP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE15.tmp"
2⤵
- Creates scheduled task(s)
PID:1732

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:1132

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:1464

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1912

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\tmpE15.tmp
Filesize
1KB

MD5
16c51053dab9776017cf58bd70c95fd5

SHA1
d877926a6dc7bde1cf52d52794e0a398cfe48c96

SHA256
1f61c18175d529c19699d52a7fe70407e284221099a25a50863337c02f276243

SHA512
018b31b5c1f8f3850ce832a5706e938e326c18cf2f65627cedfcc03c24a3ed795a449fcf810bd97c803e9533c977fa123dd1d639722fba367c868daa07bbabdf

Download Submit
memory/1132-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-66-0x000000000044C97E-mapping.dmp

Download
memory/1132-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1132-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1464-72-0x0000000000000000-mapping.dmp

Download
memory/1660-56-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/1660-55-0x0000000076781000-0x0000000076783000-memory.dmp

Filesize
8KB

Download
memory/1660-54-0x0000000000E30000-0x0000000000EA0000-memory.dmp

Filesize
448KB

Download
memory/1660-57-0x0000000005030000-0x0000000005088000-memory.dmp

Filesize
352KB

Download
memory/1732-58-0x0000000000000000-mapping.dmp

Download
memory/1912-73-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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