agenttesla | d167d1bcb7045883cf93f8a4dcf16f289ec82e2c68a4b23d29868770278c93b7

General

Target

shipping documents.exe
Size

759KB
MD5

9fb2846dca4accdd1c4fcaf212e1c6f6
SHA1

b49cfbe4a19d7ab3ee7d1a33425ccc822bba3d2e
SHA256

d0b71fdf377abca1c191fedeab8311dac158632edb66f3b894166686d61bfad6
SHA512

9ae52ef0f49c06e650c2ede614b6ff5f3a2b6de5cc18b892c5cf72bd583a4919f160ad4c30cac8a126fdaf1e3066a7a674e471138dc70213268f597227e81616

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.varda.com.tr
Port:
587
Username:
[email protected]
Password:
varda9997929

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/2008-62-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/2008-64-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/2008-65-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/2008-66-0x0000000000446E1E-mapping.dmp	family_agenttesla
behavioral1/memory/2008-68-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/2008-70-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla

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:

shipping documents.exe

description pid process target process

PID 1700 set thread context of 2008 1700 shipping documents.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

1112 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1976 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

shipping documents.exeRegSvcs.exe

pid process

1700 shipping documents.exe
2008 RegSvcs.exe
2008 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shipping documents.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1700 shipping documents.exe
Token: SeDebugPrivilege 2008 RegSvcs.exe

description	pid	process	target process
PID 1700 set thread context of 2008	1700	shipping documents.exe	RegSvcs.exe

pid	process
1112	schtasks.exe

pid	process
1976	REG.exe

pid	process
1700	shipping documents.exe
2008	RegSvcs.exe
2008	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1700	shipping documents.exe
Token: SeDebugPrivilege	2008	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

shipping documents.exeRegSvcs.exe

description	pid	process	target process
PID 1700 wrote to memory of 1112	1700	shipping documents.exe	schtasks.exe
PID 1700 wrote to memory of 1112	1700	shipping documents.exe	schtasks.exe
PID 1700 wrote to memory of 1112	1700	shipping documents.exe	schtasks.exe
PID 1700 wrote to memory of 1112	1700	shipping documents.exe	schtasks.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 1700 wrote to memory of 2008	1700	shipping documents.exe	RegSvcs.exe
PID 2008 wrote to memory of 1976	2008	RegSvcs.exe	REG.exe
PID 2008 wrote to memory of 1976	2008	RegSvcs.exe	REG.exe
PID 2008 wrote to memory of 1976	2008	RegSvcs.exe	REG.exe
PID 2008 wrote to memory of 1976	2008	RegSvcs.exe	REG.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\shipping documents.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xdfilFYBLrw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA3A.tmp"
2⤵
- Creates scheduled task(s)
PID:1112

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:2008

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:1976

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDA3A.tmp
Filesize
1KB

MD5
21d61bfc59b1db958f9b9ffabee33735

SHA1
80ff7da3725324ed859961254f67eb097bc85c09

SHA256
7dc3c2d161401a1fc994387693f3a37ca7cef684f0233ece3e799d4ded0b2397

SHA512
cab4dce530662790dcfe48f73b239e40d53d6df54e16e39539523bf68d6ba2af75bb53c94ad1a9a2f18b310186091d360076da517d525d52b71c9d67e050e58e

Download Submit
memory/1112-57-0x0000000000000000-mapping.dmp

Download
memory/1700-54-0x0000000000E70000-0x0000000000F32000-memory.dmp

Filesize
776KB

Download
memory/1700-55-0x00000000002D0000-0x00000000002DA000-memory.dmp

Filesize
40KB

Download
memory/1700-56-0x0000000007480000-0x00000000074FC000-memory.dmp

Filesize
496KB

Download
memory/1976-72-0x0000000000000000-mapping.dmp

Download
memory/2008-60-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-62-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-64-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-65-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-66-0x0000000000446E1E-mapping.dmp

Download
memory/2008-68-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-70-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2008-71-0x0000000075CD1000-0x0000000075CD3000-memory.dmp

Filesize
8KB

Download
memory/2008-59-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads