agenttesla | e1d8b37184257e9de8ffce7963397a77dcd47bc695410f038f00b224c367496a

General

Target

8100OJ.exe
Size

1.7MB
MD5

bfbdaa4f58a5fb04b5ebd07df65d794c
SHA1

626c24e885bca21d7da4f74aabb55e1e6b737a76
SHA256

04c7c046518196b6b88e6b3860d870e1ad21728353d8e73f23a9276a1a5e211f
SHA512

5793ce56e85b502d20ab43e7d30b5188063cf743b160c385fe85290522a925ad745e10691513ab7014204d93729c22e275bce76313a33c9d19fcdbad4b1f2847

Score

10^/10

agenttesla masslogger collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.ashpraskills.com
Port:
587
Username:
[email protected]
Password:
TC041018$4321

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ashpraskills.com
Port:
587
Username:
[email protected]
Password:
TC041018$4321

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/752-130-0x00000000005F0000-0x00000000007A2000-memory.dmp	family_masslogger
C:\Users\Admin\Desktop\.exe	family_masslogger
C:\Users\Admin\Desktop\.exe	family_masslogger

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\Desktop\wiseman.exe	family_agenttesla
C:\Users\Admin\Desktop\wiseman.exe	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

wiseman.exe.exe

pid process

776 wiseman.exe
5064 .exe
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

Processes:

8100OJ.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 8100OJ.exe
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
T1081
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
T1081
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
T1081

pid	process
776	wiseman.exe
5064	.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	8100OJ.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

wiseman.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wiseman.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wiseman.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wiseman.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Administrator = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\.exe"	reg.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2080 5064 WerFault.exe .exe

pid	pid_target	process	target process
2080	5064	WerFault.exe	.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

8100OJ.exewiseman.exe.exe

pid	process
752	8100OJ.exe
776	wiseman.exe
776	wiseman.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
752	8100OJ.exe
5064	.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8100OJ.exewiseman.exe.exe

description pid process

Token: SeDebugPrivilege 752 8100OJ.exe
Token: SeDebugPrivilege 776 wiseman.exe
Token: SeDebugPrivilege 5064 .exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

wiseman.exe

pid process

776 wiseman.exe

description	pid	process
Token: SeDebugPrivilege	752	8100OJ.exe
Token: SeDebugPrivilege	776	wiseman.exe
Token: SeDebugPrivilege	5064	.exe

pid	process
776	wiseman.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

8100OJ.execmd.exe

description	pid	process	target process
PID 752 wrote to memory of 776	752	8100OJ.exe	wiseman.exe
PID 752 wrote to memory of 776	752	8100OJ.exe	wiseman.exe
PID 752 wrote to memory of 776	752	8100OJ.exe	wiseman.exe
PID 752 wrote to memory of 4528	752	8100OJ.exe	cmd.exe
PID 752 wrote to memory of 4528	752	8100OJ.exe	cmd.exe
PID 752 wrote to memory of 4528	752	8100OJ.exe	cmd.exe
PID 4528 wrote to memory of 1988	4528	cmd.exe	reg.exe
PID 4528 wrote to memory of 1988	4528	cmd.exe	reg.exe
PID 4528 wrote to memory of 1988	4528	cmd.exe	reg.exe
PID 752 wrote to memory of 5064	752	8100OJ.exe	.exe
PID 752 wrote to memory of 5064	752	8100OJ.exe	.exe
PID 752 wrote to memory of 5064	752	8100OJ.exe	.exe

outlook_office_path 1 IoCs

Processes:

wiseman.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wiseman.exe

outlook_win_path 1 IoCs

Processes:

wiseman.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wiseman.exe

C:\Users\Admin\AppData\Local\Temp\8100OJ.exe
"C:\Users\Admin\AppData\Local\Temp\8100OJ.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\Desktop\wiseman.exe
  "C:\Users\Admin\Desktop\wiseman.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v Administrator /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v Administrator /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
    3⤵
    - Adds Run key to start application
    PID:1988
- C:\Users\Admin\Desktop\.exe
  "C:\Users\Admin\Desktop\.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5064
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 1268
    3⤵
    - Program crash
    PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5064 -ip 5064
1⤵
PID:888

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

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Desktop\.exe

Filesize
1.7MB

MD5
bfbdaa4f58a5fb04b5ebd07df65d794c

SHA1
626c24e885bca21d7da4f74aabb55e1e6b737a76

SHA256
04c7c046518196b6b88e6b3860d870e1ad21728353d8e73f23a9276a1a5e211f

SHA512
5793ce56e85b502d20ab43e7d30b5188063cf743b160c385fe85290522a925ad745e10691513ab7014204d93729c22e275bce76313a33c9d19fcdbad4b1f2847

Download Submit
C:\Users\Admin\Desktop\.exe

Filesize
1.7MB

MD5
bfbdaa4f58a5fb04b5ebd07df65d794c

SHA1
626c24e885bca21d7da4f74aabb55e1e6b737a76

SHA256
04c7c046518196b6b88e6b3860d870e1ad21728353d8e73f23a9276a1a5e211f

SHA512
5793ce56e85b502d20ab43e7d30b5188063cf743b160c385fe85290522a925ad745e10691513ab7014204d93729c22e275bce76313a33c9d19fcdbad4b1f2847

Download Submit
C:\Users\Admin\Desktop\wiseman.exe

Filesize
278KB

MD5
0922444ce8a37462f57e07a420acf1a7

SHA1
a6442229acbd46d3a4cf5f45630ca98a74f18d0f

SHA256
bab0b51695e2e35875154c4aba680fd1800dbbba36ef1f48cd437616eac8cdc5

SHA512
24cfd983469e0f6926969a9ee9201df6eed891c895ec7db328944feda2ebcbac20c11bffdd15e831aae64dd4d1bf45f442f2be4306d837f045ced245597a6a2c

Download Submit
C:\Users\Admin\Desktop\wiseman.exe

Filesize
278KB

MD5
0922444ce8a37462f57e07a420acf1a7

SHA1
a6442229acbd46d3a4cf5f45630ca98a74f18d0f

SHA256
bab0b51695e2e35875154c4aba680fd1800dbbba36ef1f48cd437616eac8cdc5

SHA512
24cfd983469e0f6926969a9ee9201df6eed891c895ec7db328944feda2ebcbac20c11bffdd15e831aae64dd4d1bf45f442f2be4306d837f045ced245597a6a2c

Download Submit
memory/752-133-0x0000000005CC0000-0x0000000005D04000-memory.dmp

Filesize
272KB

Download
memory/752-130-0x00000000005F0000-0x00000000007A2000-memory.dmp

Filesize
1.7MB

Download
memory/752-132-0x00000000059D0000-0x0000000005A62000-memory.dmp

Filesize
584KB

Download
memory/752-131-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/776-134-0x0000000000000000-mapping.dmp

Download
memory/776-139-0x000000006E190000-0x000000006E741000-memory.dmp

Filesize
5.7MB

Download
memory/1988-138-0x0000000000000000-mapping.dmp

Download
memory/4528-137-0x0000000000000000-mapping.dmp

Download
memory/5064-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads