agenttesla | 285647238ecf7df3582c978614ae4247cc52deb26d672bbb452e4ea1ed233990

General

Target
New Purchase Order - April_05_2022.exe
Size 303KB
Sample220405-1bbgvaggcq
SHA256 285647238ecf7df3582c978614ae4247cc52deb26d672bbb452e4ea1ed233990
MD5 2b3e41c3012303ae532d33f16ce585ea
SHA1 4189b1a48f7e0c20f3c4edb121d766b8d21337f0
SHA512 3df387ccb0b85263d1fd02ba011f7ded4ff78303348de53110891e6e383b2227c0f4051b5d3ae43bc9e30ca353e04afc3a620e2e632d230babea2f455f0144e2
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5257540806:AAHfdEOucX0SGh3bzy9zivJOu6xbXCuqEE8/sendDocument

Signatures

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

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-1-5-21-1082102374-1487407228-1886994731-1000\Control Panel\International\Geo\Nation	New Purchase Order - April_05_2022.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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-1-5-21-1082102374-1487407228-1886994731-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Napoc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bjlgkwnsn\\Napoc.exe\""	New Purchase Order - April_05_2022.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 4748	4588	New Purchase Order - April_05_2022.exe	93

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

System Information Discovery
T1082

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
3824	timeout.exe
4632	timeout.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3152	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4588	New Purchase Order - April_05_2022.exe
4588	New Purchase Order - April_05_2022.exe
4748	MSBuild.exe
4748	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	New Purchase Order - April_05_2022.exe
Token: SeDebugPrivilege	4748	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4748	MSBuild.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 2112	4588	New Purchase Order - April_05_2022.exe	80
PID 4588 wrote to memory of 2112	4588	New Purchase Order - April_05_2022.exe	80
PID 4588 wrote to memory of 2112	4588	New Purchase Order - April_05_2022.exe	80
PID 2112 wrote to memory of 3824	2112	cmd.exe	82
PID 2112 wrote to memory of 3824	2112	cmd.exe	82
PID 2112 wrote to memory of 3824	2112	cmd.exe	82
PID 2112 wrote to memory of 3152	2112	cmd.exe	83
PID 2112 wrote to memory of 3152	2112	cmd.exe	83
PID 2112 wrote to memory of 3152	2112	cmd.exe	83
PID 4588 wrote to memory of 1528	4588	New Purchase Order - April_05_2022.exe	84
PID 4588 wrote to memory of 1528	4588	New Purchase Order - April_05_2022.exe	84
PID 4588 wrote to memory of 1528	4588	New Purchase Order - April_05_2022.exe	84
PID 1528 wrote to memory of 4632	1528	cmd.exe	86
PID 1528 wrote to memory of 4632	1528	cmd.exe	86
PID 1528 wrote to memory of 4632	1528	cmd.exe	86
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93
PID 4588 wrote to memory of 4748	4588	New Purchase Order - April_05_2022.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\New Purchase Order - April_05_2022.exe
"C:\Users\Admin\AppData\Local\Temp\New Purchase Order - April_05_2022.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10 && ping google.com
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - Delays execution with timeout.exe
    PID:3824
- - C:\Windows\SysWOW64\PING.EXE
    ping google.com
    3⤵
    - Runs ping.exe
    PID:3152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - Delays execution with timeout.exe
    PID:4632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4588-124-0x0000000000F70000-0x0000000000FC0000-memory.dmp

Download

memory/4748-131-0x0000000000400000-0x000000000043A000-memory.dmp

Download

memory/4748-132-0x00000000054C0000-0x0000000005A64000-memory.dmp

Download

memory/4748-133-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Download

memory/4748-134-0x0000000005C30000-0x0000000005C96000-memory.dmp

Download

memory/4748-135-0x0000000006210000-0x0000000006260000-memory.dmp

Download

memory/4748-136-0x00000000067B0000-0x0000000006842000-memory.dmp

Download

memory/4748-137-0x0000000006940000-0x000000000694A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads