agenttesla | 88e5f07be2f316296166bc3bb24640aacf9e9568606f56015beed064ab4b2095

General

Target

PURCHASE ORDER _5644658.PDF.exe
Size

424KB
MD5

f0b3e2a7cef0d4e0c6e094676550221a
SHA1

fc8cddcf6526cd3ee94141b6299c7069ad1b19b0
SHA256

6ae9b8c271b5110c7cceb8b7d39522dd8d444dddcfa3691726ff3580562a73b7
SHA512

3a0f6d6e979871ecdf4cce66e63674ecd32568f0d45f91448b0bb986fccbbf3173734f992d6c0add58c5437fd048e36c4b00bd8efcbcf5c161b35b8c7e26178a

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/864-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/864-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/864-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/864-66-0x000000000044CF5E-mapping.dmp	family_agenttesla
behavioral1/memory/864-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/864-70-0x0000000000400000-0x0000000000452000-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/812-56-0x0000000001E20000-0x0000000001E78000-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:

PURCHASE ORDER _5644658.PDF.exe

description pid process target process

PID 812 set thread context of 864 812 PURCHASE ORDER _5644658.PDF.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

1268 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

836 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

PURCHASE ORDER _5644658.PDF.exeRegSvcs.exe

pid process

812 PURCHASE ORDER _5644658.PDF.exe
864 RegSvcs.exe
864 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE ORDER _5644658.PDF.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 812 PURCHASE ORDER _5644658.PDF.exe
Token: SeDebugPrivilege 864 RegSvcs.exe

description	pid	process	target process
PID 812 set thread context of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe

pid	process
1268	schtasks.exe

pid	process
836	REG.exe

pid	process
812	PURCHASE ORDER _5644658.PDF.exe
864	RegSvcs.exe
864	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	812	PURCHASE ORDER _5644658.PDF.exe
Token: SeDebugPrivilege	864	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

PURCHASE ORDER _5644658.PDF.exeRegSvcs.exe

description	pid	process	target process
PID 812 wrote to memory of 1268	812	PURCHASE ORDER _5644658.PDF.exe	schtasks.exe
PID 812 wrote to memory of 1268	812	PURCHASE ORDER _5644658.PDF.exe	schtasks.exe
PID 812 wrote to memory of 1268	812	PURCHASE ORDER _5644658.PDF.exe	schtasks.exe
PID 812 wrote to memory of 1268	812	PURCHASE ORDER _5644658.PDF.exe	schtasks.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 812 wrote to memory of 864	812	PURCHASE ORDER _5644658.PDF.exe	RegSvcs.exe
PID 864 wrote to memory of 836	864	RegSvcs.exe	REG.exe
PID 864 wrote to memory of 836	864	RegSvcs.exe	REG.exe
PID 864 wrote to memory of 836	864	RegSvcs.exe	REG.exe
PID 864 wrote to memory of 836	864	RegSvcs.exe	REG.exe
PID 864 wrote to memory of 2044	864	RegSvcs.exe	netsh.exe
PID 864 wrote to memory of 2044	864	RegSvcs.exe	netsh.exe
PID 864 wrote to memory of 2044	864	RegSvcs.exe	netsh.exe
PID 864 wrote to memory of 2044	864	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\PURCHASE ORDER _5644658.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER _5644658.PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:812

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eigBEJpNrvdNDs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9DD6.tmp"
2⤵
- Creates scheduled task(s)
PID:1268

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:864

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:836

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2044

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9DD6.tmp
Filesize
1KB

MD5
88192d17572f99b6a531b43fd8acd84c

SHA1
ab7df9e859742dc0b1acaf6d5a3acab1d30ef69c

SHA256
f999bc53bd28c5db07e19c9c7bb181be65b868594f7c5457f4f4877d3abe1761

SHA512
bbf66ef527f0913b7976d190f5d7d1fcb2c2c10221c9cac79090fedd6774d88ce11f989c4a0be6ab92edc4112a7304f09a6e01a545bb4b4e93f428c0d6f62899

Download Submit
memory/812-54-0x0000000000090000-0x0000000000100000-memory.dmp

Filesize
448KB

Download
memory/812-55-0x00000000007C0000-0x00000000007C8000-memory.dmp

Filesize
32KB

Download
memory/812-56-0x0000000001E20000-0x0000000001E78000-memory.dmp

Filesize
352KB

Download
memory/812-57-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/836-72-0x0000000000000000-mapping.dmp

Download
memory/864-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-66-0x000000000044CF5E-mapping.dmp

Download
memory/864-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/864-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1268-58-0x0000000000000000-mapping.dmp

Download
memory/2044-73-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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