agenttesla | 4705340cecbc474ffcb41a8ae7968093fa35084b3c197d4cf1a1862be648828d

Analysis

max time kernel
38s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
08/02/2023, 15:02

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General

Target
PO - 12619.exe
Size 847KB
Sample230208-sefa7sca22
SHA256 4705340cecbc474ffcb41a8ae7968093fa35084b3c197d4cf1a1862be648828d
MD5 85348a0517930a3c83a508960f220678
SHA1 af85a0654e7a6fc89022b7a9c772ddaa4b2ff59c
SHA512 4804a5d697bd1828e8d790e9c2f49f15b6f977d2f16976fb38010232b37ea24e7bd9be8c691489b0b76b084765c922d7cc5734e7a5b38c98507c1a85ffda7f29
SSDEEP 24576:YGb8vOztLHKNu+A+/1bfd47JnSJULlWjmu25Q9kdr1q:mJ+WuYkm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.mdist.us
Port
587
Username
[email protected]
Password
Jobs#4321
Email to
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yGbzOMp = "C:\\Users\\Admin\\AppData\\Roaming\\yGbzOMp\\yGbzOMp.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 944 set thread context of 1508	944	PO - 12619.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
268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
944	PO - 12619.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	944	PO - 12619.exe
Token: SeDebugPrivilege	1508	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 268	944	PO - 12619.exe	28
PID 944 wrote to memory of 268	944	PO - 12619.exe	28
PID 944 wrote to memory of 268	944	PO - 12619.exe	28
PID 944 wrote to memory of 268	944	PO - 12619.exe	28
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30
PID 944 wrote to memory of 1508	944	PO - 12619.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO - 12619.exe
"C:\Users\Admin\AppData\Local\Temp\PO - 12619.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVtRJvJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8151.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:268
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1508

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

tmp8151.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8151.tmp
Size 1KB
SHA256 1f4fcc2d1e98a3db84e0363fa093264079020a661994f64fae57338902e8f9a7
MD5 d754feace19585cfb581cbf5513d5fb6
SHA1 59c656694deee4d79bc4ad63ba2d64e98d787e1a
SHA512 1faf102e111a4d129444116a75023170c69a83a81992cf043f2b337ea75d166e75ed5270613dd181f3bbde727904c45f7734fe93198d0db286cbe097c5c237cf
MD5 SHA1 SHA512

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memory/944-57-0x0000000004F80000-0x0000000005016000-memory.dmp

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memory/944-54-0x0000000000A40000-0x0000000000B1A000-memory.dmp

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memory/944-58-0x0000000001F70000-0x0000000001FB8000-memory.dmp

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memory/944-56-0x0000000000320000-0x000000000032E000-memory.dmp

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memory/944-55-0x0000000075491000-0x0000000075493000-memory.dmp

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memory/1508-61-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-62-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-64-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-65-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-66-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-69-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1508-71-0x0000000000400000-0x0000000000430000-memory.dmp

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