agenttesla | 77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445

General

Target

PURCHASE ORDER_20230601.exe
Size

103KB
MD5

e034dcab67a1ef7eb1f65347439ed212
SHA1

d33baf287318eb7b0cf5725712203d35d3ac80d8
SHA256

77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445
SHA512

c94de9a264e876d1d00e1a51b3ea5590c66d0099a010259e3fda9c7cc82714139246fbbddc1ea1c714aec7f8b856e459e3718180c1522a82320f1950a6027953
SSDEEP

768:pp1PpUMVzUSRmST294dWa2P7b1IzPrXMkN336DXa:z1P+iwSD294dN2PmfMkN3KDq

Score

10^/10

agenttesla purecrypter collection downloader keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

purecrypter

C2

http://208.67.107.146/Xvhwgnaxcaj.png

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6237173637:AAHL1SZ0swNAdHMB508Hs_WnK-RKakXlUmA/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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-1-5-21-2548970870-3691742953-3895070203-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Zkqeesiggtt = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jwjztcm\\Zkqeesiggtt.exe\""	PURCHASE ORDER_20230601.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3468 set thread context of 4964	3468	PURCHASE ORDER_20230601.exe	82

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4964	InstallUtil.exe
4964	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3468	PURCHASE ORDER_20230601.exe
Token: SeDebugPrivilege	4964	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82
PID 3468 wrote to memory of 4964	3468	PURCHASE ORDER_20230601.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_20230601.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_20230601.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4964

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

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3468-133-0x0000000000B80000-0x0000000000BA0000-memory.dmp

Filesize
128KB

Download
memory/3468-134-0x0000000005A80000-0x0000000006024000-memory.dmp

Filesize
5.6MB

Download
memory/3468-135-0x0000000005570000-0x0000000005602000-memory.dmp

Filesize
584KB

Download
memory/3468-136-0x0000000005530000-0x000000000553A000-memory.dmp

Filesize
40KB

Download
memory/3468-137-0x00000000057B0000-0x00000000057C0000-memory.dmp

Filesize
64KB

Download
memory/3468-138-0x0000000007C70000-0x0000000007C92000-memory.dmp

Filesize
136KB

Download
memory/4964-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4964-142-0x00000000056E0000-0x0000000005746000-memory.dmp

Filesize
408KB

Download
memory/4964-143-0x00000000057A0000-0x00000000057B0000-memory.dmp

Filesize
64KB

Download
memory/4964-144-0x0000000006AB0000-0x0000000006B00000-memory.dmp

Filesize
320KB

Download
memory/4964-145-0x0000000006CD0000-0x0000000006E92000-memory.dmp

Filesize
1.8MB

Download
memory/4964-146-0x00000000057A0000-0x00000000057B0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads