agenttesla | 85759a08474216312dcb74e132817fe353f20631c854e3ccd95c97036590e7e1

General

Target

NEW INVOICE.exe
Size

561KB
MD5

55b95046471af229ee99c420a9305466
SHA1

5722d102e4010564f2428ed878c58a8a6a865e45
SHA256

f63a89559c83329e8ea8f79ad5cbd03d3ae2f5a71312f26feecc132379c14eab
SHA512

8eddf9d88a340fc70201fc6c2dd4b9ac9cf4523e0de24404ed2fe7ca98a832d4a30786ce82234829a2ef93d85ac83547829660cb121b0a19a7ca26af6dba9e69

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.proetizo.com
Port:
587
Username:
[email protected]
Password:
:n7#l_CcH8wh

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/1820-63-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1820-64-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1820-65-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1820-66-0x0000000000447FFE-mapping.dmp	family_agenttesla
behavioral1/memory/1820-70-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1820-68-0x0000000000400000-0x000000000044E000-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/1940-57-0x00000000047D0000-0x0000000004824000-memory.dmp	rezer0

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:

NEW INVOICE.exe

description pid process target process

PID 1940 set thread context of 1820 1940 NEW INVOICE.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

1732 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

NEW INVOICE.exeRegSvcs.exe

pid process

1940 NEW INVOICE.exe
1940 NEW INVOICE.exe
1940 NEW INVOICE.exe
1820 RegSvcs.exe
1820 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NEW INVOICE.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1940 NEW INVOICE.exe
Token: SeDebugPrivilege 1820 RegSvcs.exe

description	pid	process	target process
PID 1940 set thread context of 1820	1940	NEW INVOICE.exe	RegSvcs.exe

pid	process
1732	schtasks.exe

pid	process
1940	NEW INVOICE.exe
1940	NEW INVOICE.exe
1940	NEW INVOICE.exe
1820	RegSvcs.exe
1820	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1940	NEW INVOICE.exe
Token: SeDebugPrivilege	1820	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

NEW INVOICE.exe

description	pid	process	target process
PID 1940 wrote to memory of 1732	1940	NEW INVOICE.exe	schtasks.exe
PID 1940 wrote to memory of 1732	1940	NEW INVOICE.exe	schtasks.exe
PID 1940 wrote to memory of 1732	1940	NEW INVOICE.exe	schtasks.exe
PID 1940 wrote to memory of 1732	1940	NEW INVOICE.exe	schtasks.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 876	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.exe
PID 1940 wrote to memory of 1820	1940	NEW INVOICE.exe	RegSvcs.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\NEW INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aVEwpDPWQpr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp77CF.tmp"
2⤵
- Creates scheduled task(s)
PID:1732

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:876

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1820

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp77CF.tmp
Filesize
1KB

MD5
9de937f4b0fa1d3c73169b0aac6f275e

SHA1
2765f1abd8bdeb849771f44ffba53b5739eada1e

SHA256
629d656a1623fe01b3b3478d9be2f853629eaeb7aabc0467ca21afd9c452ee30

SHA512
daebc3f6b9b78659d955996c92de8eccfbbda92883a41f26ba83c07bbbd414853419de54496a6962bb58ecbf06209e0b9e4b281869848b366e86fd5144d7c9cd

Download Submit
memory/1732-58-0x0000000000000000-mapping.dmp

Download
memory/1820-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-60-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-65-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-66-0x0000000000447FFE-mapping.dmp

Download
memory/1820-70-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-71-0x0000000075941000-0x0000000075943000-memory.dmp

Filesize
8KB

Download
memory/1940-57-0x00000000047D0000-0x0000000004824000-memory.dmp

Filesize
336KB

Download
memory/1940-56-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/1940-55-0x0000000000970000-0x00000000009CE000-memory.dmp

Filesize
376KB

Download
memory/1940-54-0x0000000001250000-0x00000000012E6000-memory.dmp

Filesize
600KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads