agenttesla | ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4

General

Target

ungziped_file.exe
Size

720KB
MD5

9a44f36caf11078eb7abd74748f16a54
SHA1

7801376c1332b904d12675a9007a4c12866db860
SHA256

ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4
SHA512

4e48fed193b4f182a390109d59b8fb0afccc55bfad5e097ad3fbe99304ea83d2f88dfed8b179f6b0ed3f2ecddd1d7d38e699cf26ccf834f3504f3d465387f7cd
SSDEEP

12288:Va122IoIFFHgeg/cVLrDkld4st6QxkNII9CiqJ+Gz/dM+PJw4Yrc14LrGi:H2IXFxFrDytjoCiqJ+GzpPpYQ1

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.wrklearning.com
Port:
587
Username:
[email protected]
Password:
worke2300
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ungziped_file.exe
Key opened	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ungziped_file.exe
Key opened	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ungziped_file.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
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2856	3004	ungziped_file.exe	32

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

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/Job

T1053

pid	Process
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2856	ungziped_file.exe
2856	ungziped_file.exe
2672	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	ungziped_file.exe
Token: SeDebugPrivilege	2672	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2672	3004	ungziped_file.exe	28
PID 3004 wrote to memory of 2672	3004	ungziped_file.exe	28
PID 3004 wrote to memory of 2672	3004	ungziped_file.exe	28
PID 3004 wrote to memory of 2672	3004	ungziped_file.exe	28
PID 3004 wrote to memory of 2756	3004	ungziped_file.exe	30
PID 3004 wrote to memory of 2756	3004	ungziped_file.exe	30
PID 3004 wrote to memory of 2756	3004	ungziped_file.exe	30
PID 3004 wrote to memory of 2756	3004	ungziped_file.exe	30
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32
PID 3004 wrote to memory of 2856	3004	ungziped_file.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ungziped_file.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ungziped_file.exe

C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVLjOoPhVQ.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVLjOoPhVQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp902F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
  "C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp902F.tmp

Filesize
1KB

MD5
0dccfa51ec7f902148d76b4f9c5225bb

SHA1
14692ecb5115e5074c0c8cfbe063769dbb6dd06f

SHA256
ddf3d76175dc2afc68ff350921c4a3514e95f8d01c95c685dc6882e6c8867f93

SHA512
684f050abb924af70615ed0ca9feb7ad74049e06de058065d63f8820f3cb23c993f1ae4aca6b9f85f0498e06a3272a082c0693f3e6dd2b932ad7f31691633f9b

Download Submit
memory/2672-30-0x000000006F020000-0x000000006F5CB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-29-0x000000006F020000-0x000000006F5CB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-34-0x000000006F020000-0x000000006F5CB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-33-0x00000000025F0000-0x0000000002630000-memory.dmp

Filesize
256KB

Download
memory/2672-32-0x00000000025F0000-0x0000000002630000-memory.dmp

Filesize
256KB

Download
memory/2856-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-31-0x0000000002160000-0x00000000021A0000-memory.dmp

Filesize
256KB

Download
memory/2856-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-36-0x0000000002160000-0x00000000021A0000-memory.dmp

Filesize
256KB

Download
memory/2856-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-35-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2856-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2856-28-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2856-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3004-0-0x00000000108A0000-0x0000000010958000-memory.dmp

Filesize
736KB

Download
memory/3004-23-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/3004-5-0x0000000005B00000-0x0000000005B84000-memory.dmp

Filesize
528KB

Download
memory/3004-4-0x0000000000540000-0x0000000000554000-memory.dmp

Filesize
80KB

Download
memory/3004-3-0x0000000000520000-0x000000000053C000-memory.dmp

Filesize
112KB

Download
memory/3004-1-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/3004-2-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads