agenttesla | 09afbfb9d18062653cfebd212be22748eefbe361356f033eafc112df1e5b3e6c

General

Target

payment receipt.exe
Size

900KB
MD5

7fdd090c8b9fe2544b1fa4dc4c96bc11
SHA1

3147873d755d9e30a5bd61ab132942a79558f43d
SHA256

8e25b6df9458100758e0656d3529e0edf64e4bab339e7be71145304477ed9bbf
SHA512

88d448db785836f88866de11101d6bbd568e73eb1befc85c7492340c81629b2eb00ee867d235c8f73568ee620a90376cb473be0d938bd72e31f625a0e81ce523

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dianaglobalmandiri.com
Port:
587
Username:
[email protected]
Password:
Batam2019

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/1432-56-0x0000000000460000-0x0000000000468000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1400-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1400-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1400-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1400-64-0x000000000044CB5E-mapping.dmp	family_agenttesla
behavioral1/memory/1400-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1400-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1432-57-0x0000000000DA0000-0x0000000000DF8000-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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

payment receipt.exe

description pid process target process

PID 1432 set thread context of 1400 1432 payment receipt.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

688 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1400 RegSvcs.exe
1400 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1400 RegSvcs.exe

description	pid	process	target process
PID 1432 set thread context of 1400	1432	payment receipt.exe	RegSvcs.exe

pid	process
688	REG.exe

pid	process
1400	RegSvcs.exe
1400	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1400	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

payment receipt.exeRegSvcs.exe

description	pid	process	target process
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1432 wrote to memory of 1400	1432	payment receipt.exe	RegSvcs.exe
PID 1400 wrote to memory of 688	1400	RegSvcs.exe	REG.exe
PID 1400 wrote to memory of 688	1400	RegSvcs.exe	REG.exe
PID 1400 wrote to memory of 688	1400	RegSvcs.exe	REG.exe
PID 1400 wrote to memory of 688	1400	RegSvcs.exe	REG.exe
PID 1400 wrote to memory of 1088	1400	RegSvcs.exe	netsh.exe
PID 1400 wrote to memory of 1088	1400	RegSvcs.exe	netsh.exe
PID 1400 wrote to memory of 1088	1400	RegSvcs.exe	netsh.exe
PID 1400 wrote to memory of 1088	1400	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\payment receipt.exe
"C:\Users\Admin\AppData\Local\Temp\payment receipt.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1432

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1400

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:688

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1088

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

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/688-70-0x0000000000000000-mapping.dmp

Download
memory/1088-71-0x0000000000000000-mapping.dmp

Download
memory/1400-64-0x000000000044CB5E-mapping.dmp

Download
memory/1400-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1400-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1432-57-0x0000000000DA0000-0x0000000000DF8000-memory.dmp

Filesize
352KB

Download
memory/1432-54-0x0000000001350000-0x0000000001438000-memory.dmp

Filesize
928KB

Download
memory/1432-56-0x0000000000460000-0x0000000000468000-memory.dmp

Filesize
32KB

Download
memory/1432-55-0x0000000076461000-0x0000000076463000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads