agenttesla | 798fb244e7a14d63cadd3eacb43f1ea453999e3a8aecc19c369a95b4c50698c9

General

Target

SOA_JAN_MAY_20_doc.exe
Size

493KB
MD5

fecd60c16e011bb46d2def8b40a97c0d
SHA1

d58d6eddb59e69570fd6415db66a59963ec0c32c
SHA256

798fb244e7a14d63cadd3eacb43f1ea453999e3a8aecc19c369a95b4c50698c9
SHA512

8f32335b96b3f7dbe5afe185cd28c4de89460b4deb1fb43b4a5153ffc0e05398005d2d82ff985d4f563d0f887c5ec031e91263d89ca0e3461173a871d42124b1

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pptoursperu.com
Port:
587
Username:
info@pptoursperu.com
Password:
mailppt2019-

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/240-4-0x0000000000270000-0x0000000000273000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1484-6-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-7-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1484-8-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-9-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/240-5-0x0000000007A70000-0x0000000007AC1000-memory.dmp	rezer0

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

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

SOA_JAN_MAY_20_doc.exe

description pid process target process

PID 240 set thread context of 1484 240 SOA_JAN_MAY_20_doc.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

592 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

SOA_JAN_MAY_20_doc.exeRegSvcs.exe

pid process

240 SOA_JAN_MAY_20_doc.exe
240 SOA_JAN_MAY_20_doc.exe
240 SOA_JAN_MAY_20_doc.exe
1484 RegSvcs.exe
1484 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SOA_JAN_MAY_20_doc.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 240 SOA_JAN_MAY_20_doc.exe
Token: SeDebugPrivilege 1484 RegSvcs.exe

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

description	pid	process	target process
PID 240 set thread context of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe

pid	process
592	REG.exe

pid	process
240	SOA_JAN_MAY_20_doc.exe
240	SOA_JAN_MAY_20_doc.exe
240	SOA_JAN_MAY_20_doc.exe
1484	RegSvcs.exe
1484	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	240	SOA_JAN_MAY_20_doc.exe
Token: SeDebugPrivilege	1484	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

SOA_JAN_MAY_20_doc.exeRegSvcs.exe

description	pid	process	target process
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 240 wrote to memory of 1484	240	SOA_JAN_MAY_20_doc.exe	RegSvcs.exe
PID 1484 wrote to memory of 592	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 592	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 592	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 592	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 744	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 744	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 744	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 744	1484	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe
"C:\Users\Admin\AppData\Local\Temp\SOA_JAN_MAY_20_doc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:240

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1484

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:592

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:744

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/240-0-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/240-1-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download
memory/240-3-0x0000000000960000-0x00000000009BA000-memory.dmp

Filesize
360KB

Download
memory/240-4-0x0000000000270000-0x0000000000273000-memory.dmp

Filesize
12KB

Download
memory/240-5-0x0000000007A70000-0x0000000007AC1000-memory.dmp

Filesize
324KB

Download
memory/592-13-0x0000000000000000-mapping.dmp

Download
memory/744-14-0x0000000000000000-mapping.dmp

Download
memory/1484-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-7-0x000000000044ABAE-mapping.dmp

Download
memory/1484-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-9-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-10-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads