agenttesla | 1ea26893b98115c9c36c6c1ecb7b4fa28b71ea8dc91f7219c7e54d9f95d4bf8e

Analysis

max time kernel
121s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 03:22

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General

Target

DHL_AWB #1008936572891_pdf.exe
Size

2.1MB
MD5

3e910208a9f1bf03108895af8671078c
SHA1

6b59a64f11e6559c1354c8097856593469ecd8bc
SHA256

885179565290381c8e8e883f1e4c776507c1ddd3bfa8902f432ea31fbf01c683
SHA512

525ee64a0e0915fa5f35534187c230d3526395ebb42d7c0c68123b9804158d66d0078821c0e7f7a1bf7554322fa28a47d73a6422a7e451fd7dac3062b43dffeb

Score

10^/10

agenttesla masslogger collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 4 IoCs

resource	yara_rule
behavioral2/memory/4776-130-0x0000000000BB0000-0x0000000000DC4000-memory.dmp	family_masslogger
behavioral2/files/0x0006000000022e43-136.dat	family_masslogger
behavioral2/files/0x0006000000022e43-137.dat	family_masslogger
behavioral2/memory/772-138-0x0000000000480000-0x0000000000538000-memory.dmp	family_masslogger

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4776-130-0x0000000000BB0000-0x0000000000DC4000-memory.dmp	family_agenttesla
behavioral2/memory/1904-142-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
772	MassLoggerBinUPDATEProizvodnja.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	DHL_AWB #1008936572891_pdf.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe	DHL_AWB #1008936572891_pdf.exe

Loads dropped DLL 1 IoCs

pid	Process
4776	DHL_AWB #1008936572891_pdf.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_AWB #1008936572891_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_AWB #1008936572891_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_AWB #1008936572891_pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WEqfDb = "C:\\Users\\Admin\\AppData\\Roaming\\WEqfDb\\WEqfDb.exe"	DHL_AWB #1008936572891_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4776 set thread context of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4776	DHL_AWB #1008936572891_pdf.exe
772	MassLoggerBinUPDATEProizvodnja.exe
772	MassLoggerBinUPDATEProizvodnja.exe
4776	DHL_AWB #1008936572891_pdf.exe
4776	DHL_AWB #1008936572891_pdf.exe
1876	powershell.exe
1876	powershell.exe
1904	DHL_AWB #1008936572891_pdf.exe
1904	DHL_AWB #1008936572891_pdf.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	DHL_AWB #1008936572891_pdf.exe
Token: SeDebugPrivilege	772	MassLoggerBinUPDATEProizvodnja.exe
Token: SeDebugPrivilege	1876	powershell.exe
Token: SeDebugPrivilege	1904	DHL_AWB #1008936572891_pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 772	4776	DHL_AWB #1008936572891_pdf.exe	83
PID 4776 wrote to memory of 772	4776	DHL_AWB #1008936572891_pdf.exe	83
PID 4776 wrote to memory of 772	4776	DHL_AWB #1008936572891_pdf.exe	83
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 4776 wrote to memory of 1904	4776	DHL_AWB #1008936572891_pdf.exe	90
PID 772 wrote to memory of 4496	772	MassLoggerBinUPDATEProizvodnja.exe	91
PID 772 wrote to memory of 4496	772	MassLoggerBinUPDATEProizvodnja.exe	91
PID 772 wrote to memory of 4496	772	MassLoggerBinUPDATEProizvodnja.exe	91
PID 4496 wrote to memory of 1876	4496	cmd.exe	93
PID 4496 wrote to memory of 1876	4496	cmd.exe	93
PID 4496 wrote to memory of 1876	4496	cmd.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_AWB #1008936572891_pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_AWB #1008936572891_pdf.exe

C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:772
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4496
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1876
- C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe"
  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:1904

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\305ca9ce-05a7-4081-bcf5-b3110c43e68e\l.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe

Filesize
711KB

MD5
8bc40219a7641c3bcf72228173552977

SHA1
ccd09865e9c7adc458a85b7638b7cd3e6a843d83

SHA256
9e4cce1b23e7fdec9ab35c03326a7d3990aef52b7a5bce0d47d28bf8e56cfd6e

SHA512
d6273cd78443faac11ddfe3dbfe3731d0243cd2454227153c71593ad826df4c62d3488da29dc7a527ec5977c54e02d091eec43803f20832de518b9f3069c396e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MassLoggerBinUPDATEProizvodnja.exe

Filesize
711KB

MD5
8bc40219a7641c3bcf72228173552977

SHA1
ccd09865e9c7adc458a85b7638b7cd3e6a843d83

SHA256
9e4cce1b23e7fdec9ab35c03326a7d3990aef52b7a5bce0d47d28bf8e56cfd6e

SHA512
d6273cd78443faac11ddfe3dbfe3731d0243cd2454227153c71593ad826df4c62d3488da29dc7a527ec5977c54e02d091eec43803f20832de518b9f3069c396e

Download Submit
memory/772-140-0x0000000004FB0000-0x0000000005016000-memory.dmp

Filesize
408KB

Download
memory/772-139-0x0000000004E00000-0x0000000004E9C000-memory.dmp

Filesize
624KB

Download
memory/772-138-0x0000000000480000-0x0000000000538000-memory.dmp

Filesize
736KB

Download
memory/1876-148-0x0000000005560000-0x00000000055C6000-memory.dmp

Filesize
408KB

Download
memory/1876-150-0x0000000007D90000-0x000000000840A000-memory.dmp

Filesize
6.5MB

Download
memory/1876-153-0x0000000006B10000-0x0000000006B32000-memory.dmp

Filesize
136KB

Download
memory/1876-152-0x00000000077B0000-0x0000000007846000-memory.dmp

Filesize
600KB

Download
memory/1876-151-0x00000000069C0000-0x00000000069DA000-memory.dmp

Filesize
104KB

Download
memory/1876-149-0x00000000064A0000-0x00000000064BE000-memory.dmp

Filesize
120KB

Download
memory/1876-147-0x00000000053C0000-0x00000000053E2000-memory.dmp

Filesize
136KB

Download
memory/1876-145-0x0000000002B80000-0x0000000002BB6000-memory.dmp

Filesize
216KB

Download
memory/1876-146-0x0000000005680000-0x0000000005CA8000-memory.dmp

Filesize
6.2MB

Download
memory/1904-142-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1904-154-0x0000000006900000-0x0000000006950000-memory.dmp

Filesize
320KB

Download
memory/1904-155-0x0000000006BD0000-0x0000000006BDA000-memory.dmp

Filesize
40KB

Download
memory/4776-130-0x0000000000BB0000-0x0000000000DC4000-memory.dmp

Filesize
2.1MB

Download
memory/4776-134-0x0000000006190000-0x0000000006222000-memory.dmp

Filesize
584KB

Download
memory/4776-132-0x0000000073D40000-0x0000000073DC9000-memory.dmp

Filesize
548KB

Download
memory/4776-133-0x0000000006660000-0x0000000006C04000-memory.dmp

Filesize
5.6MB

Download