agenttesla | f0df2d320e47c58700f32f3df8aaa7ee95b56078a22818fe692c6c4708578a5d

General

Target

PNQNR00000118PNQNR00000118.exe
Size

449KB
MD5

7473e4decb7e2c2ff61e6547d372e906
SHA1

b6d7cf27a8cff8c1ffb7ce4342a5f0bf14ff7798
SHA256

1601d407d21641b07f554e7e63353cce4c2fb281ab6308bbbee53cdd817012e0
SHA512

4ca3191a1be1eaf4190ffe879c43680b3046812f26d3158d4621b12bb0be093d251e641bf418bf17c492ce7725ec28b5dc3a15ad998a5b96e93cbe516d152969

Score

10^/10

agenttesla collection evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
[email protected]
Password:
pune@123

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/992-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/992-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/992-66-0x000000000044CF5E-mapping.dmp	family_agenttesla
behavioral1/memory/992-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/992-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/992-70-0x0000000000400000-0x0000000000452000-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/604-56-0x0000000005510000-0x0000000005568000-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\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PNQNR00000118PNQNR00000118.exe

description pid process target process

PID 604 set thread context of 992 604 PNQNR00000118PNQNR00000118.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2036 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1508 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

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

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 992 RegSvcs.exe

description	pid	process	target process
PID 604 set thread context of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe

pid	process
2036	schtasks.exe

pid	process
1508	REG.exe

pid	process
992	RegSvcs.exe
992	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	992	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

PNQNR00000118PNQNR00000118.exeRegSvcs.exe

description	pid	process	target process
PID 604 wrote to memory of 2036	604	PNQNR00000118PNQNR00000118.exe	schtasks.exe
PID 604 wrote to memory of 2036	604	PNQNR00000118PNQNR00000118.exe	schtasks.exe
PID 604 wrote to memory of 2036	604	PNQNR00000118PNQNR00000118.exe	schtasks.exe
PID 604 wrote to memory of 2036	604	PNQNR00000118PNQNR00000118.exe	schtasks.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 604 wrote to memory of 992	604	PNQNR00000118PNQNR00000118.exe	RegSvcs.exe
PID 992 wrote to memory of 1508	992	RegSvcs.exe	REG.exe
PID 992 wrote to memory of 1508	992	RegSvcs.exe	REG.exe
PID 992 wrote to memory of 1508	992	RegSvcs.exe	REG.exe
PID 992 wrote to memory of 1508	992	RegSvcs.exe	REG.exe
PID 992 wrote to memory of 1520	992	RegSvcs.exe	netsh.exe
PID 992 wrote to memory of 1520	992	RegSvcs.exe	netsh.exe
PID 992 wrote to memory of 1520	992	RegSvcs.exe	netsh.exe
PID 992 wrote to memory of 1520	992	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\PNQNR00000118PNQNR00000118.exe
"C:\Users\Admin\AppData\Local\Temp\PNQNR00000118PNQNR00000118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:604

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xrDKjJXa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDCD8.tmp"
2⤵
- Creates scheduled task(s)
PID:2036

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:992

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:1508

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDCD8.tmp

Filesize
1KB

MD5
429272554b076822e347aced901c453f

SHA1
e2b4879c1b196eff75777bb578e7b9190f7f76b3

SHA256
39af82a26b4fece47df910ae5828a923edac87c66babe34e6cf3cd08d7fc2da9

SHA512
09f1de535d5c7a4a09a45ed92951580f76e168fe3ef85cd2a33b4bf4aa464b8312e24363a96cea53a0a240d14ab1c3dba27e253ceafbc52258a023733429e3b7

Download Submit
memory/604-55-0x00000000002F0000-0x0000000000300000-memory.dmp

Filesize
64KB

Download
memory/604-56-0x0000000005510000-0x0000000005568000-memory.dmp

Filesize
352KB

Download
memory/604-57-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/604-54-0x0000000000F10000-0x0000000000F86000-memory.dmp

Filesize
472KB

Download
memory/992-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-66-0x000000000044CF5E-mapping.dmp

Download
memory/992-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/992-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1508-72-0x0000000000000000-mapping.dmp

Download
memory/1520-73-0x0000000000000000-mapping.dmp

Download
memory/2036-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads