agenttesla | 8bf77994fb5759f8be8d739cd651531fda75de8888c7f579ccafbbadb3b3decb

Analysis

max time kernel
54s
max time network
153s
platform
windows7_x64
resource
win7-20220414-en
submitted
20/04/2022, 04:29

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General

Target
Overdue Payment.jar.exe
Size 822KB
Sample220420-e38e1abce3
SHA256 8bf77994fb5759f8be8d739cd651531fda75de8888c7f579ccafbbadb3b3decb
MD5 8d8cec84fb1bdc0bcc1d8f80df6e4e6b
SHA1 6a759c813b6ab846bc324d5296c2619ca4de9b1a
SHA512 244b99b46569135541fd2e89844ac18633f7092a49826a20ab0491e215aa6147ccf42dde0d6fbd7d3fe1993351a346498a2ee1b4f281ffdfd1c0d9c5783b6971
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.ppecindia.com
Port
587
Username
[email protected]
Password
accounts@123$

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.ppecindia.com
Port
587
Username
[email protected]
Password
accounts@123$

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Drops file in Drivers directory 1 IoCs

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

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\tbKkO = "C:\\Users\\Admin\\AppData\\Roaming\\tbKkO\\tbKkO.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1832 set thread context of 1872	1832	Overdue Payment.jar.exe	30

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

pid	Process
1220	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1832	Overdue Payment.jar.exe
1872	RegSvcs.exe
1872	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1832	Overdue Payment.jar.exe
Token: SeDebugPrivilege	1872	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 1220	1832	Overdue Payment.jar.exe	27
PID 1832 wrote to memory of 1220	1832	Overdue Payment.jar.exe	27
PID 1832 wrote to memory of 1220	1832	Overdue Payment.jar.exe	27
PID 1832 wrote to memory of 1220	1832	Overdue Payment.jar.exe	27
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 940	1832	Overdue Payment.jar.exe	29
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30
PID 1832 wrote to memory of 1872	1832	Overdue Payment.jar.exe	30

outlook_office_path 1 IoCs

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

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\Overdue Payment.jar.exe
"C:\Users\Admin\AppData\Local\Temp\Overdue Payment.jar.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\omFhviGAJzKL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8FD2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1220
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:940
- 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
  - outlook_office_path
  - outlook_win_path
  PID:1872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp8FD2.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8FD2.tmp
Size 1KB
SHA256 dc886166c97d2d41f12abb879478f9d69e392212c7b6c9d14d9ae24c4370df26
MD5 2b5c9bf74d66d7cfeb44d84f40f81816
SHA1 12e9234299ed7928fca54930ef919c69d02a928c
SHA512 e314384106c21782732c70c7abb21739392ea0338dcce799f187e59170bed657de3c807c88075cc1399b45cb90864978a4078bebaebffc68f1fbc60921acb50d
MD5 SHA1 SHA512

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memory/1832-57-0x00000000053A0000-0x0000000005434000-memory.dmp

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memory/1832-54-0x0000000000CA0000-0x0000000000D74000-memory.dmp

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memory/1832-58-0x0000000005730000-0x00000000057A0000-memory.dmp

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memory/1832-56-0x0000000000900000-0x000000000090A000-memory.dmp

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memory/1832-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

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memory/1872-61-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-62-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-66-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-64-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-67-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-70-0x0000000000400000-0x0000000000470000-memory.dmp

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memory/1872-72-0x0000000000400000-0x0000000000470000-memory.dmp

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