agenttesla | 18fcb8604dc88c010d786be917f618a461876f5db6f80f1f8a64bc3b8fe48a98

Resubmissions

24/07/2023, 06:32

230724-haylwaag65 10

16/07/2023, 18:15

230716-wwbacshb7z 10

Analysis

max time kernel
137s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2023, 06:32

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General

Target

1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
Size

898KB
MD5

02cc74d9cac7d52bf1c63c43f017bcee
SHA1

3ac771f8343e45ac63b5802535d179b2f574532c
SHA256

1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67
SHA512

98f15f8de33757d52d408690880eb7c2425274433ca9c0c315edb7451b73a701f0aa02012c04d9b0fb7392e7b986ae01a87acb40b94a9bb7fdd59da9e4e9c646
SSDEEP

24576:QIhzYOPW2rEloDwdMRHP4/LBmf74RWoJ:wOzrsocdMRv4/LW74RWoJ

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
IZmBVEm3

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
IZmBVEm3

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3904-140-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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
T1552.001
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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 868 set thread context of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
3904	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
3904	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3904	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
Token: SeDebugPrivilege	3904	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 1632	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	92
PID 868 wrote to memory of 1632	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	92
PID 868 wrote to memory of 1632	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	92
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93
PID 868 wrote to memory of 3904	868	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe

C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
"C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:868
- C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
  "{path}"
  2⤵
  PID:1632
- C:\Users\Admin\AppData\Local\Temp\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1b7f039e2beb71993aa281ed8137e45b1b9708531b54e3b46d347baa3cc6fc67.exe.log

Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
memory/868-137-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/868-135-0x0000000007DC0000-0x0000000007E5C000-memory.dmp

Filesize
624KB

Download
memory/868-136-0x0000000007F50000-0x0000000007FE2000-memory.dmp

Filesize
584KB

Download
memory/868-133-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/868-138-0x0000000007F40000-0x0000000007F50000-memory.dmp

Filesize
64KB

Download
memory/868-139-0x0000000008BC0000-0x0000000009164000-memory.dmp

Filesize
5.6MB

Download
memory/868-143-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/868-134-0x0000000000E80000-0x0000000000F68000-memory.dmp

Filesize
928KB

Download
memory/3904-145-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/3904-140-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3904-144-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/3904-146-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/3904-147-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/3904-148-0x0000000006390000-0x00000000063F6000-memory.dmp

Filesize
408KB

Download
memory/3904-150-0x0000000006AD0000-0x0000000006B20000-memory.dmp

Filesize
320KB

Download
memory/3904-151-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/3904-152-0x0000000006D80000-0x0000000006D8A000-memory.dmp

Filesize
40KB

Download
memory/3904-153-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download