agenttesla | dba1c6f4dd89c52525317f5f5579a08272ce31acc5be21d8309b2712cb6d5f34

General

Target

PO 8433,.exe
Size

475KB
MD5

f31de3ccbfeaab2d3c5444864a3751d0
SHA1

95f329022a882bfbbc36717bd9b324aed0513dc2
SHA256

f21d472a74c33a35138111341a52a7dd85dc6131c788fa79dfc17537626dc12b
SHA512

083acfbdf3edaea147aaefda36d8d27339ff7c6ed48f2e9438bc232c465f83c7bfcccd53a92fb2ec42a7d1807cfdc4454f270782a16a4b5fc6cd141d6669fa7e

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/988-57-0x0000000000530000-0x0000000000538000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/956-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/956-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/956-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/956-65-0x000000000044CB5E-mapping.dmp	family_agenttesla
behavioral1/memory/956-67-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/956-69-0x0000000000400000-0x0000000000452000-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/988-58-0x0000000004EA0000-0x0000000004EF8000-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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 8433,.exe

description pid process target process

PID 988 set thread context of 956 988 PO 8433,.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1124 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

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

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 956 RegSvcs.exe

description	pid	process	target process
PID 988 set thread context of 956	988	PO 8433,.exe	RegSvcs.exe

pid	process
1124	REG.exe

pid	process
956	RegSvcs.exe
956	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	956	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PO 8433,.exeRegSvcs.exe

description	pid	process	target process
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 988 wrote to memory of 956	988	PO 8433,.exe	RegSvcs.exe
PID 956 wrote to memory of 1124	956	RegSvcs.exe	REG.exe
PID 956 wrote to memory of 1124	956	RegSvcs.exe	REG.exe
PID 956 wrote to memory of 1124	956	RegSvcs.exe	REG.exe
PID 956 wrote to memory of 1124	956	RegSvcs.exe	REG.exe
PID 956 wrote to memory of 288	956	RegSvcs.exe	netsh.exe
PID 956 wrote to memory of 288	956	RegSvcs.exe	netsh.exe
PID 956 wrote to memory of 288	956	RegSvcs.exe	netsh.exe
PID 956 wrote to memory of 288	956	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO 8433,.exe
"C:\Users\Admin\AppData\Local\Temp\PO 8433,.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:988

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:956

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:1124

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:288

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/288-72-0x0000000000000000-mapping.dmp

Download
memory/956-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-69-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/956-65-0x000000000044CB5E-mapping.dmp

Download
memory/988-54-0x0000000000B70000-0x0000000000BEE000-memory.dmp

Filesize
504KB

Download
memory/988-56-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download
memory/988-58-0x0000000004EA0000-0x0000000004EF8000-memory.dmp

Filesize
352KB

Download
memory/988-57-0x0000000000530000-0x0000000000538000-memory.dmp

Filesize
32KB

Download
memory/988-55-0x0000000000A30000-0x0000000000A92000-memory.dmp

Filesize
392KB

Download
memory/1124-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads