agenttesla | 0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169

Analysis

max time kernel
111s
max time network
111s
platform
windows10_x64
resource
win10v20201028
submitted
09/11/2020, 19:29

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General

Target
REMITANCE ADVICE.exe
Size 719KB
Sample201109-fa1d9ve786
SHA256 0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169
MD5 de64989943967579858fe30c6c10e969
SHA1 00a162896289a64b0488d9a46bb7888bac5b7a0f
SHA512 0df8a190958bdb15d0b000541ea31f4bcc5f1e7bb85cbe129d9438d763e5e8c9d056e4a32f33e7a42891fe1b0589e40588783a3d5ae6585057f1fbae232c42a1
MD5 SHA1 SHA512

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
[email protected]
Password
mailppt2019-

Signatures

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

AgentTesla Payload 16 IoCs

resource	yara_rule
behavioral2/memory/2740-10-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral2/memory/2740-11-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-23-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-22-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-24-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-25-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-27-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-28-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-26-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-30-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-31-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-32-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-29-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-33-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-35-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral2/memory/2740-34-0x000000000044ABAE-mapping.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

resource	yara_rule
behavioral2/memory/424-9-0x0000000007AC0000-0x0000000007B12000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 424 set thread context of 2740	424	REMITANCE ADVICE.exe	75

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1324	2740	WerFault.exe	75

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2384	REG.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
424	REMITANCE ADVICE.exe
424	REMITANCE ADVICE.exe
424	REMITANCE ADVICE.exe
2740	RegSvcs.exe
2740	RegSvcs.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe
1324	WerFault.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	424	REMITANCE ADVICE.exe
Token: SeDebugPrivilege	2740	RegSvcs.exe
Token: SeRestorePrivilege	1324	WerFault.exe
Token: SeBackupPrivilege	1324	WerFault.exe
Token: SeDebugPrivilege	1324	WerFault.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 424 wrote to memory of 2740	424	REMITANCE ADVICE.exe	75
PID 2740 wrote to memory of 2384	2740	RegSvcs.exe	79
PID 2740 wrote to memory of 2384	2740	RegSvcs.exe	79
PID 2740 wrote to memory of 2384	2740	RegSvcs.exe	79
PID 2740 wrote to memory of 2128	2740	RegSvcs.exe	81
PID 2740 wrote to memory of 2128	2740	RegSvcs.exe	81
PID 2740 wrote to memory of 2128	2740	RegSvcs.exe	81

C:\Users\Admin\AppData\Local\Temp\REMITANCE ADVICE.exe
"C:\Users\Admin\AppData\Local\Temp\REMITANCE ADVICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:424
- 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:2740
- - 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:2384
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:2128
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 1536
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/424-0-0x0000000073D50000-0x000000007443E000-memory.dmp

Download

memory/424-1-0x0000000000920000-0x0000000000921000-memory.dmp

Download

memory/424-3-0x00000000013B0000-0x000000000140C000-memory.dmp

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memory/424-4-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

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memory/424-5-0x00000000057A0000-0x00000000057A1000-memory.dmp

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memory/424-6-0x0000000005290000-0x0000000005291000-memory.dmp

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memory/424-7-0x0000000005920000-0x0000000005923000-memory.dmp

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memory/424-8-0x0000000007920000-0x0000000007921000-memory.dmp

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memory/424-9-0x0000000007AC0000-0x0000000007B12000-memory.dmp

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memory/1324-21-0x0000000004E00000-0x0000000004E01000-memory.dmp

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memory/1324-36-0x0000000005440000-0x0000000005441000-memory.dmp

Download

memory/2740-17-0x00000000051C0000-0x00000000051C1000-memory.dmp

Download

memory/2740-10-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/2740-18-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

Download

memory/2740-12-0x0000000073D50000-0x000000007443E000-memory.dmp

Download