agenttesla | 9d4fb7929a5d37e1cc4eb2584562b7b3c51e212521d2bbbf6f0fa2e2b7635262

General

Target

Scan_copy_08272020.exe
Size

671KB
MD5

595d2af4ee391b3e1bde8afb492a4514
SHA1

d09d1f836fde2e422833460dd39cbbf925859869
SHA256

1b70d8bec1085949c128725ae5a8b69ccaeda7c20fb1e7be0d6e9ff2b5ef1a85
SHA512

4235c0e10a992b635631097060fa4c204c54f083f13023b6d06adbc24fac983f0e03eb8cb83940a455ab7863c169e12ecedc39af73fccdab0be569a89b0b556f

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
khalik000

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1692-63-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1692-64-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1692-65-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1692-66-0x00000000004610FE-mapping.dmp	family_agenttesla
behavioral1/memory/1692-68-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1692-70-0x0000000000400000-0x0000000000466000-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:

Scan_copy_08272020.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Scan_copy_08272020.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Scan_copy_08272020.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:

Scan_copy_08272020.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_copy_08272020.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_copy_08272020.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_copy_08272020.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:

Scan_copy_08272020.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Scan_copy_08272020.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Scan_copy_08272020.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Scan_copy_08272020.exe

description pid process target process

PID 1564 set thread context of 1692 1564 Scan_copy_08272020.exe Scan_copy_08272020.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

1924 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Scan_copy_08272020.exeScan_copy_08272020.exe

pid process

1564 Scan_copy_08272020.exe
1564 Scan_copy_08272020.exe
1692 Scan_copy_08272020.exe
1692 Scan_copy_08272020.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Scan_copy_08272020.exeScan_copy_08272020.exe

description pid process

Token: SeDebugPrivilege 1564 Scan_copy_08272020.exe
Token: SeDebugPrivilege 1692 Scan_copy_08272020.exe

description	pid	process	target process
PID 1564 set thread context of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe

pid	process
1924	schtasks.exe

pid	process
1564	Scan_copy_08272020.exe
1564	Scan_copy_08272020.exe
1692	Scan_copy_08272020.exe
1692	Scan_copy_08272020.exe

description	pid	process
Token: SeDebugPrivilege	1564	Scan_copy_08272020.exe
Token: SeDebugPrivilege	1692	Scan_copy_08272020.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Scan_copy_08272020.exe

description	pid	process	target process
PID 1564 wrote to memory of 1924	1564	Scan_copy_08272020.exe	schtasks.exe
PID 1564 wrote to memory of 1924	1564	Scan_copy_08272020.exe	schtasks.exe
PID 1564 wrote to memory of 1924	1564	Scan_copy_08272020.exe	schtasks.exe
PID 1564 wrote to memory of 1924	1564	Scan_copy_08272020.exe	schtasks.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe
PID 1564 wrote to memory of 1692	1564	Scan_copy_08272020.exe	Scan_copy_08272020.exe

outlook_office_path 1 IoCs

Processes:

Scan_copy_08272020.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_copy_08272020.exe

outlook_win_path 1 IoCs

Processes:

Scan_copy_08272020.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan_copy_08272020.exe

C:\Users\Admin\AppData\Local\Temp\Scan_copy_08272020.exe
"C:\Users\Admin\AppData\Local\Temp\Scan_copy_08272020.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:1564

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HhhGajJWoFvaTg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8ED8.tmp"
2⤵
- Creates scheduled task(s)
PID:1924

C:\Users\Admin\AppData\Local\Temp\Scan_copy_08272020.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1692

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

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\Temp\tmp8ED8.tmp
Filesize
1KB

MD5
b7bbc8c8e07e9664420a486d693b3256

SHA1
8d5a638262d31e914c9c786fbe84989f30b8f346

SHA256
c599860c55c7871c6f1696d4778d3fd593dbd455e6ad5593807c4a5482f3c1ef

SHA512
4cba874224802426147f1a3e497cd8fbac3cc12c2adaae20f0e5cbda9f28be6ddf75f6aa2b580775c0bfa7232050cf04a81b5e5ea7749314656378457a0577a1

Download Submit
memory/1564-55-0x00000000002E0000-0x00000000002EC000-memory.dmp

Filesize
48KB

Download
memory/1564-56-0x0000000005290000-0x0000000005326000-memory.dmp

Filesize
600KB

Download
memory/1564-57-0x00000000003F0000-0x0000000000470000-memory.dmp

Filesize
512KB

Download
memory/1564-54-0x00000000012C0000-0x000000000136E000-memory.dmp

Filesize
696KB

Download
memory/1692-63-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-61-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-64-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-60-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-65-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-66-0x00000000004610FE-mapping.dmp

Download
memory/1692-68-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-70-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1692-71-0x00000000763B1000-0x00000000763B3000-memory.dmp

Filesize
8KB

Download
memory/1924-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads