agenttesla | 42af6a36e4b258c564fe1b8a495dda8e269e2c3ad4a4850bf30ec3b22a095c5f

General

Target

RFQ-000083832.exe
Size

603KB
MD5

3c29cde1d757b9a8d0cbed03feb6163c
SHA1

60ca0da86ec5b2fb3236f1906a8d5a0513fbfb59
SHA256

42af6a36e4b258c564fe1b8a495dda8e269e2c3ad4a4850bf30ec3b22a095c5f
SHA512

b1529e0d494d7d82e5d99900e287db7183fee0a9c4271f537e6bc8313f4b63ab8ed533bb829df482f8bb616a1c31ab38198488c801cbc45085349fe7bd5d782f

Score

10^/10

agenttesla 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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1396-7-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1396-6-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1396-8-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1396-9-0x0000000000400000-0x0000000000450000-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/2036-5-0x00000000004C0000-0x0000000000511000-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:

RFQ-000083832.exe

description pid process target process

PID 2036 set thread context of 1396 2036 RFQ-000083832.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1932 REG.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RFQ-000083832.exeRegSvcs.exe

pid process

2036 RFQ-000083832.exe
2036 RFQ-000083832.exe
1396 RegSvcs.exe
1396 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ-000083832.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2036 RFQ-000083832.exe
Token: SeDebugPrivilege 1396 RegSvcs.exe

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

description	pid	process	target process
PID 2036 set thread context of 1396	2036	RFQ-000083832.exe	RegSvcs.exe

pid	process
1932	REG.exe

pid	process
2036	RFQ-000083832.exe
2036	RFQ-000083832.exe
1396	RegSvcs.exe
1396	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2036	RFQ-000083832.exe
Token: SeDebugPrivilege	1396	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

RFQ-000083832.exeRegSvcs.exe

description	pid	process	target process
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 2036 wrote to memory of 1396	2036	RFQ-000083832.exe	RegSvcs.exe
PID 1396 wrote to memory of 1932	1396	RegSvcs.exe	REG.exe
PID 1396 wrote to memory of 1932	1396	RegSvcs.exe	REG.exe
PID 1396 wrote to memory of 1932	1396	RegSvcs.exe	REG.exe
PID 1396 wrote to memory of 1932	1396	RegSvcs.exe	REG.exe
PID 1396 wrote to memory of 564	1396	RegSvcs.exe	netsh.exe
PID 1396 wrote to memory of 564	1396	RegSvcs.exe	netsh.exe
PID 1396 wrote to memory of 564	1396	RegSvcs.exe	netsh.exe
PID 1396 wrote to memory of 564	1396	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-000083832.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-000083832.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036

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:1396

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:1932

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:564

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/564-14-0x0000000000000000-mapping.dmp

Download
memory/1396-7-0x000000000044ABAE-mapping.dmp

Download
memory/1396-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1396-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1396-9-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1396-10-0x0000000074EE0000-0x00000000755CE000-memory.dmp

Filesize
6.9MB

Download
memory/1932-13-0x0000000000000000-mapping.dmp

Download
memory/2036-0-0x0000000074EE0000-0x00000000755CE000-memory.dmp

Filesize
6.9MB

Download
memory/2036-1-0x0000000000E80000-0x0000000000E81000-memory.dmp

Filesize
4KB

Download
memory/2036-3-0x0000000000620000-0x000000000067A000-memory.dmp

Filesize
360KB

Download
memory/2036-4-0x00000000005D0000-0x00000000005D3000-memory.dmp

Filesize
12KB

Download
memory/2036-5-0x00000000004C0000-0x0000000000511000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads