agenttesla | 3315f6f2235050638ef65d91c63bd8454f2ad07f08a04ab1ab6e8b6eab65361b

General

Target

75947213cdcf840dece785dfffcc4045.exe
Size

488KB
MD5

75947213cdcf840dece785dfffcc4045
SHA1

0279145121d57d99bccca8385ed8eda6ebd5d8d2
SHA256

3315f6f2235050638ef65d91c63bd8454f2ad07f08a04ab1ab6e8b6eab65361b
SHA512

0c82d0d30b2a869b93950a85af77ee7af3fa14cb8e5dd5d9726eaa9278b9f661e0186050ef11ace3081d1972ee5b32023386b4fc3f3f9c6b116fa60c9adccb0f
SSDEEP

12288:Oi7n6QjBtbKjD/AkVmSc0NhOLS26ni/WlQ0ECb:b7nhvbKvfmkALKi/Wq0Ec

Score

10^/10

agenttesla collection evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.rajapindah.com
Port:
587
Username:
[email protected]
Password:
#r4j#citeureup#13

Signatures

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

AgentTesla payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1628-9-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1628-11-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1628-15-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1628-17-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1628-19-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1628-25-0x0000000004D20000-0x0000000004D60000-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/3064-4-0x0000000004DD0000-0x0000000004E28000-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-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

75947213cdcf840dece785dfffcc4045.exe

description pid process target process

PID 3064 set thread context of 1628 3064 75947213cdcf840dece785dfffcc4045.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

2816 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1628 RegSvcs.exe
1628 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1628 RegSvcs.exe

description	pid	process	target process
PID 3064 set thread context of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe

pid	process
2816	REG.exe

pid	process
1628	RegSvcs.exe
1628	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1628	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

75947213cdcf840dece785dfffcc4045.exeRegSvcs.exe

description	pid	process	target process
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 3064 wrote to memory of 1628	3064	75947213cdcf840dece785dfffcc4045.exe	RegSvcs.exe
PID 1628 wrote to memory of 2816	1628	RegSvcs.exe	REG.exe
PID 1628 wrote to memory of 2816	1628	RegSvcs.exe	REG.exe
PID 1628 wrote to memory of 2816	1628	RegSvcs.exe	REG.exe
PID 1628 wrote to memory of 2816	1628	RegSvcs.exe	REG.exe
PID 1628 wrote to memory of 2656	1628	RegSvcs.exe	netsh.exe
PID 1628 wrote to memory of 2656	1628	RegSvcs.exe	netsh.exe
PID 1628 wrote to memory of 2656	1628	RegSvcs.exe	netsh.exe
PID 1628 wrote to memory of 2656	1628	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\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-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\75947213cdcf840dece785dfffcc4045.exe
"C:\Users\Admin\AppData\Local\Temp\75947213cdcf840dece785dfffcc4045.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3064

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:1628

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:2816

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2656

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1628-19-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-21-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/1628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1628-15-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-7-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-9-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-5-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1628-25-0x0000000004D20000-0x0000000004D60000-memory.dmp

Filesize
256KB

Download
memory/1628-24-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/1628-22-0x0000000004D20000-0x0000000004D60000-memory.dmp

Filesize
256KB

Download
memory/1628-17-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3064-2-0x00000000048E0000-0x0000000004920000-memory.dmp

Filesize
256KB

Download
memory/3064-20-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/3064-0-0x0000000000E00000-0x0000000000E80000-memory.dmp

Filesize
512KB

Download
memory/3064-3-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/3064-1-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/3064-4-0x0000000004DD0000-0x0000000004E28000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads