agenttesla | 09cccd5cfacbd5bd098ac4e9764afb2a1f83e0f255ac7ad28dc05819483627d3

General

Target

Account_Details.exe
Size

437KB
MD5

615bf96891a61c261995f100b65f5097
SHA1

2e160435fdb8407bbff4ed8d71bde0f317365a27
SHA256

1fa1363c857cc46f603a4eff38b86058b80ecca1f554c65e943f94725b5c2570
SHA512

720aa5e9b33b9a06cf74c36f64acc3ba57c5bf3910fa253a5d3194233edc6c024383dcc13f39b49328279196c1e3b118151cc00f8dff5cd7028688d01eb24f64

Score

10^/10

agenttesla collection keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aquariuslogistics.com
Port:
587
Username:
[email protected]
Password:
AQL@2019#$

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/1900-63-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1900-64-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1900-66-0x000000000044833E-mapping.dmp	family_agenttesla
behavioral1/memory/1900-65-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1900-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1900-70-0x0000000000400000-0x000000000044E000-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/1448-57-0x0000000000A30000-0x0000000000A84000-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

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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Account_Details.exe

description pid process target process

PID 1448 set thread context of 1900 1448 Account_Details.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
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Account_Details.exeRegSvcs.exe

pid process

1448 Account_Details.exe
1900 RegSvcs.exe
1900 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Account_Details.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1448 Account_Details.exe
Token: SeDebugPrivilege 1900 RegSvcs.exe

description	pid	process	target process
PID 1448 set thread context of 1900	1448	Account_Details.exe	RegSvcs.exe

pid	process
2036	schtasks.exe

pid	process
1448	Account_Details.exe
1900	RegSvcs.exe
1900	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1448	Account_Details.exe
Token: SeDebugPrivilege	1900	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Account_Details.exe

description	pid	process	target process
PID 1448 wrote to memory of 2036	1448	Account_Details.exe	schtasks.exe
PID 1448 wrote to memory of 2036	1448	Account_Details.exe	schtasks.exe
PID 1448 wrote to memory of 2036	1448	Account_Details.exe	schtasks.exe
PID 1448 wrote to memory of 2036	1448	Account_Details.exe	schtasks.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.exe	RegSvcs.exe
PID 1448 wrote to memory of 1900	1448	Account_Details.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\Account_Details.exe
"C:\Users\Admin\AppData\Local\Temp\Account_Details.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nznuCTDzZhSJz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E45.tmp"
2⤵
- Creates scheduled task(s)
PID:2036

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1900

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

1

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\tmp7E45.tmp
Filesize
1KB

MD5
ddeac55b36dce2860cd652346e8cd737

SHA1
0b78a28c70dfd28b673b487c83cc54236cc423ee

SHA256
f668ff6a6b73ed1efda034018237f684373c43ee0970aabe2d4b917f8e94e5c8

SHA512
85f9db30b1841fb37389f084311b29c15ae12e5fda9cc32dc15ad19b2a4f62d92ff932f98f8f61ebc34f413963fd559594e48d927612dfca628a993bfac9a5ad

Download Submit
memory/1448-55-0x0000000075F61000-0x0000000075F63000-memory.dmp

Filesize
8KB

Download
memory/1448-56-0x0000000000510000-0x0000000000520000-memory.dmp

Filesize
64KB

Download
memory/1448-57-0x0000000000A30000-0x0000000000A84000-memory.dmp

Filesize
336KB

Download
memory/1448-54-0x0000000000E80000-0x0000000000EF4000-memory.dmp

Filesize
464KB

Download
memory/1900-60-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-66-0x000000000044833E-mapping.dmp

Download
memory/1900-65-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-70-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

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

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads