agenttesla | 3f68b22fb16c34f3e0b8f0437901b1a67ee94ad173d4d810abd91b7bf2c8d3a3

General

Target
PO# -RDPLI2020-03060 - PILOT# 154550.exe
Size 506KB
Sample201109-qcd7f3ed36
SHA256 3f68b22fb16c34f3e0b8f0437901b1a67ee94ad173d4d810abd91b7bf2c8d3a3
MD5 9bf56e4b75bec106e43fa542d5329135
SHA1 d22427be6b476f2362463c291cd4682e6ecc5bb0
SHA512 22021ea13ae74b4acb1c96a48d39dca8bbc464ebad087ce978c3821175302e6580f393755043f81583fa4e51ecc8cd24aee2be7cab62efe66e175e149891af66
MD5 SHA1 SHA512

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.villanika.gr
Port
587
Username
[email protected]
Password
n2^-9wE@Wl}t

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

resource	yara_rule
behavioral1/memory/1904-4-0x00000000005B0000-0x00000000005B3000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/824-6-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/824-7-0x000000000044C6EE-mapping.dmp	family_agenttesla
behavioral1/memory/824-8-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/824-9-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/1904-5-0x0000000002010000-0x0000000002063000-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 1904 set thread context of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1824	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe
1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe
1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe
824	RegSvcs.exe
824	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe
Token: SeDebugPrivilege	824	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 1904 wrote to memory of 824	1904	PO# -RDPLI2020-03060 - PILOT# 154550.exe	29
PID 824 wrote to memory of 1824	824	RegSvcs.exe	31
PID 824 wrote to memory of 1824	824	RegSvcs.exe	31
PID 824 wrote to memory of 1824	824	RegSvcs.exe	31
PID 824 wrote to memory of 1824	824	RegSvcs.exe	31
PID 824 wrote to memory of 844	824	RegSvcs.exe	33
PID 824 wrote to memory of 844	824	RegSvcs.exe	33
PID 824 wrote to memory of 844	824	RegSvcs.exe	33
PID 824 wrote to memory of 844	824	RegSvcs.exe	33

C:\Users\Admin\AppData\Local\Temp\PO# -RDPLI2020-03060 - PILOT# 154550.exe
"C:\Users\Admin\AppData\Local\Temp\PO# -RDPLI2020-03060 - PILOT# 154550.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1904
- 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:824
- - 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:1824
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/824-10-0x0000000073AF0000-0x00000000741DE000-memory.dmp

Download

memory/824-6-0x0000000000400000-0x0000000000452000-memory.dmp

Download

memory/824-8-0x0000000000400000-0x0000000000452000-memory.dmp

Download

memory/824-9-0x0000000000400000-0x0000000000452000-memory.dmp

Download

memory/1904-1-0x0000000000190000-0x0000000000191000-memory.dmp

Download

memory/1904-3-0x0000000000630000-0x000000000068E000-memory.dmp

Download

memory/1904-4-0x00000000005B0000-0x00000000005B3000-memory.dmp

Download

memory/1904-5-0x0000000002010000-0x0000000002063000-memory.dmp

Download

memory/1904-0-0x0000000073AF0000-0x00000000741DE000-memory.dmp

Download

memory/1904-11-0x0000000001E30000-0x0000000001E60000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads