agenttesla | 8bacca094f83e0486702d5c22a551a5a52ee7dab8ed6daad0b2881c57a1127ce

General

Target

Shipment Details.exe
Size

493KB
MD5

ade7e98755e204c575754c578d9806b8
SHA1

5c833bf110f91e5ec7f541a2af60a7faf46fe0c8
SHA256

8bacca094f83e0486702d5c22a551a5a52ee7dab8ed6daad0b2881c57a1127ce
SHA512

f667354b0158c2f31c8c6253b4abdf77e214cac1f9bba083b5728dc980ea671630c47e370506a5df17588357074b966ec9ab4fc2314f8ee95fcb9291ec65dae2

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.hotel71.com.bd
Port:
587
Username:
[email protected]
Password:
9+^va&phP1v9

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/1056-4-0x00000000003D0000-0x00000000003D3000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1648-6-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-7-0x000000000044AC5E-mapping.dmp	family_agenttesla
behavioral1/memory/1648-8-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-9-0x0000000000400000-0x0000000000450000-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/1056-5-0x0000000004930000-0x0000000004981000-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:

Shipment Details.exe

description pid process target process

PID 1056 set thread context of 1648 1056 Shipment Details.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

484 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Shipment Details.exeRegSvcs.exe

pid process

1056 Shipment Details.exe
1056 Shipment Details.exe
1056 Shipment Details.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Shipment Details.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1056 Shipment Details.exe
Token: SeDebugPrivilege 1648 RegSvcs.exe

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

description	pid	process	target process
PID 1056 set thread context of 1648	1056	Shipment Details.exe	RegSvcs.exe

pid	process
484	REG.exe

pid	process
1056	Shipment Details.exe
1056	Shipment Details.exe
1056	Shipment Details.exe
1648	RegSvcs.exe
1648	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1056	Shipment Details.exe
Token: SeDebugPrivilege	1648	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Shipment Details.exeRegSvcs.exe

description	pid	process	target process
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1056 wrote to memory of 1648	1056	Shipment Details.exe	RegSvcs.exe
PID 1648 wrote to memory of 484	1648	RegSvcs.exe	REG.exe
PID 1648 wrote to memory of 484	1648	RegSvcs.exe	REG.exe
PID 1648 wrote to memory of 484	1648	RegSvcs.exe	REG.exe
PID 1648 wrote to memory of 484	1648	RegSvcs.exe	REG.exe
PID 1648 wrote to memory of 1280	1648	RegSvcs.exe	netsh.exe
PID 1648 wrote to memory of 1280	1648	RegSvcs.exe	netsh.exe
PID 1648 wrote to memory of 1280	1648	RegSvcs.exe	netsh.exe
PID 1648 wrote to memory of 1280	1648	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Shipment Details.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment Details.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056

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:1648

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:484

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1280

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/484-13-0x0000000000000000-mapping.dmp

Download
memory/1056-0-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1056-1-0x00000000013A0000-0x00000000013A1000-memory.dmp

Filesize
4KB

Download
memory/1056-3-0x00000000004E0000-0x000000000053A000-memory.dmp

Filesize
360KB

Download
memory/1056-4-0x00000000003D0000-0x00000000003D3000-memory.dmp

Filesize
12KB

Download
memory/1056-5-0x0000000004930000-0x0000000004981000-memory.dmp

Filesize
324KB

Download
memory/1280-14-0x0000000000000000-mapping.dmp

Download
memory/1648-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-7-0x000000000044AC5E-mapping.dmp

Download
memory/1648-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-9-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-10-0x00000000745B0000-0x0000000074C9E000-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