agenttesla | 538116d5dfc2c8b74a74ebf1b7d1b77bc66ef92613983c69c6987cc888935550

General

Target

PO.8956.exe
Size

843KB
MD5

8d6bf73a7448adf11ca5f2cf766a9898
SHA1

6c157b632a674b4d257d8bcf0fbc4f827a3861fc
SHA256

71e6a270b356bc75968b35c54dc53c7b0ce03519e8fbd1821814438810b84e51
SHA512

ba9b60b0e4d4a1aa42c81e11a2e9c046c664f3447d34b846356d8ca692972ac6285c721fc401816686c720ec6ad26425f8820c45e94712ea2c35d6e32cac1f5d

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
ku0385547@gmail.com
Password:
iambless@070

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/676-129-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/676-130-0x00000000004374AE-mapping.dmp	family_agenttesla
behavioral2/memory/676-136-0x0000000005360000-0x000000000585E000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO.8956.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PO.8956.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO.8956.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO.8956.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.8956.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.8956.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.8956.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO.8956.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Appdata = "C:\\Users\\Admin\\AppData\\Roaming\\Appdata\\Appdata.exe"	PO.8956.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PO.8956.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PO.8956.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	PO.8956.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO.8956.exe

description pid process target process

PID 3796 set thread context of 676 3796 PO.8956.exe PO.8956.exe
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

Processes:

schtasks.exe

pid process

2884 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

PO.8956.exePO.8956.exe

pid process

3796 PO.8956.exe
3796 PO.8956.exe
3796 PO.8956.exe
676 PO.8956.exe
676 PO.8956.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO.8956.exePO.8956.exe

description pid process

Token: SeDebugPrivilege 3796 PO.8956.exe
Token: SeDebugPrivilege 676 PO.8956.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO.8956.exe

pid process

676 PO.8956.exe

description	pid	process	target process
PID 3796 set thread context of 676	3796	PO.8956.exe	PO.8956.exe

pid	process
2884	schtasks.exe

pid	process
3796	PO.8956.exe
3796	PO.8956.exe
3796	PO.8956.exe
676	PO.8956.exe
676	PO.8956.exe

description	pid	process
Token: SeDebugPrivilege	3796	PO.8956.exe
Token: SeDebugPrivilege	676	PO.8956.exe

pid	process
676	PO.8956.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

PO.8956.exe

description	pid	process	target process
PID 3796 wrote to memory of 2884	3796	PO.8956.exe	schtasks.exe
PID 3796 wrote to memory of 2884	3796	PO.8956.exe	schtasks.exe
PID 3796 wrote to memory of 2884	3796	PO.8956.exe	schtasks.exe
PID 3796 wrote to memory of 1524	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 1524	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 1524	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe
PID 3796 wrote to memory of 676	3796	PO.8956.exe	PO.8956.exe

outlook_office_path 1 IoCs

Processes:

PO.8956.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.8956.exe

outlook_win_path 1 IoCs

Processes:

PO.8956.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.8956.exe

C:\Users\Admin\AppData\Local\Temp\PO.8956.exe
"C:\Users\Admin\AppData\Local\Temp\PO.8956.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tqeDbDmyWYKl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6741.tmp"
2⤵
- Creates scheduled task(s)
PID:2884

C:\Users\Admin\AppData\Local\Temp\PO.8956.exe
"{path}"
2⤵
PID:1524

C:\Users\Admin\AppData\Local\Temp\PO.8956.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

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\Microsoft\CLR_v4.0_32\UsageLogs\PO.8956.exe.log
MD5
5ce36f0c4d9568839c224ffaa10d5441

SHA1
69c0cdded0b415091641c3fbf64b7fbd7e285e47

SHA256
c93c5a9fdaa44aeb7f25c89abed40a1ca6432bf3ea840e2820388bef68cd116a

SHA512
a6ef350d4f36f35b42ce0b8a4df83f17fb0a4f66dcfa32617b22e642168291bede3b612969e0eec293d7ca1ba0aef7a05c31823bd41821e0880b609f280b0b83

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6741.tmp
MD5
a2464fb97b1dad446985a590672d2dba

SHA1
ab124101f4005023b04822b333d024deb371f95d

SHA256
3be246c582e9c30e9485e86ed9eb68a654e251bed588efd579591acff6aa2cff

SHA512
391ed843daf7430dcb9498fad27c89ee67dc2b80bb4537b0be34d0e39898bb318b0d9225b3711e016caf8acf7e4708e766f28dbade3aa8623fdc94223945f800

Download Submit
memory/676-137-0x0000000006050000-0x0000000006051000-memory.dmp

Filesize
4KB

Download
memory/676-136-0x0000000005360000-0x000000000585E000-memory.dmp

Filesize
5.0MB

Download
memory/676-130-0x00000000004374AE-mapping.dmp

Download
memory/676-129-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-127-0x0000000000000000-mapping.dmp

Download
memory/3796-120-0x0000000005500000-0x00000000059FE000-memory.dmp

Filesize
5.0MB

Download
memory/3796-124-0x0000000006470000-0x00000000064ED000-memory.dmp

Filesize
500KB

Download
memory/3796-125-0x0000000002D10000-0x0000000002D48000-memory.dmp

Filesize
224KB

Download
memory/3796-126-0x00000000066A0000-0x00000000066A1000-memory.dmp

Filesize
4KB

Download
memory/3796-123-0x0000000005510000-0x000000000551E000-memory.dmp

Filesize
56KB

Download
memory/3796-122-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/3796-121-0x00000000054E0000-0x00000000054E1000-memory.dmp

Filesize
4KB

Download
memory/3796-115-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/3796-119-0x00000000055A0000-0x00000000055A1000-memory.dmp

Filesize
4KB

Download
memory/3796-118-0x0000000005A00000-0x0000000005A01000-memory.dmp

Filesize
4KB

Download
memory/3796-117-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads