agenttesla | a04b2cd4d358ae69e6d5cf8a7ab1748eea0819dfc47b17ec26c7795a9058012e

Analysis

max time kernel
77s
max time network
111s
platform
windows10_x64
resource
win10v200722
submitted
02/09/2020, 06:21

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General

Target
PROOF OF PAYMENT.exe
Size 652KB
Sample200902-lnapmfbexx
SHA256 a04b2cd4d358ae69e6d5cf8a7ab1748eea0819dfc47b17ec26c7795a9058012e
MD5 57f84a73433641c79ebaa7751be52816
SHA1 9a9fc719f2b9b4822130a10f8b0468f8240001a5
SHA512 9a6917454243082ba6a781eab97b26d2cf624bb5c2f136b2bdd625b9751846093050ed2596bc04a4a7e11bd59ae6ff016d01b8ba0c07f750fd65f18f74c75028
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.ru
Port
587
Username
[email protected]
Password
kateojo11

Signatures

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

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3432-15-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral2/memory/3432-16-0x000000000046132E-mapping.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3888 set thread context of 3432	3888	PROOF OF PAYMENT.exe	77

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.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

pid	Process
2428	schtasks.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = 5ec7aa830281d601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3888	PROOF OF PAYMENT.exe
3888	PROOF OF PAYMENT.exe
3888	PROOF OF PAYMENT.exe
3888	PROOF OF PAYMENT.exe
3432	PROOF OF PAYMENT.exe
3432	PROOF OF PAYMENT.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	676	svchost.exe
Token: SeCreatePagefilePrivilege	676	svchost.exe
Token: SeDebugPrivilege	3888	PROOF OF PAYMENT.exe
Token: SeDebugPrivilege	3432	PROOF OF PAYMENT.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3432	PROOF OF PAYMENT.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 2428	3888	PROOF OF PAYMENT.exe	75
PID 3888 wrote to memory of 2428	3888	PROOF OF PAYMENT.exe	75
PID 3888 wrote to memory of 2428	3888	PROOF OF PAYMENT.exe	75
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77
PID 3888 wrote to memory of 3432	3888	PROOF OF PAYMENT.exe	77

C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.exe
"C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KAVfCiWGf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE852.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2428
- C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3432

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3432-23-0x0000000006060000-0x0000000006061000-memory.dmp

Download

memory/3432-22-0x0000000005420000-0x0000000005421000-memory.dmp

Download

memory/3432-17-0x0000000074000000-0x00000000746EE000-memory.dmp

Download

memory/3432-15-0x0000000000400000-0x0000000000466000-memory.dmp

Download

memory/3888-5-0x0000000002600000-0x0000000002601000-memory.dmp

Download

memory/3888-9-0x0000000007260000-0x0000000007261000-memory.dmp

Download

memory/3888-12-0x0000000009A10000-0x0000000009A98000-memory.dmp

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memory/3888-8-0x0000000007130000-0x00000000071B6000-memory.dmp

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memory/3888-7-0x0000000006DE0000-0x0000000006DE1000-memory.dmp

Download

memory/3888-6-0x0000000004C80000-0x0000000004C83000-memory.dmp

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memory/3888-0-0x0000000074000000-0x00000000746EE000-memory.dmp

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memory/3888-4-0x0000000004B20000-0x0000000004B21000-memory.dmp

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memory/3888-3-0x0000000004F80000-0x0000000004F81000-memory.dmp

Download

memory/3888-1-0x0000000000180000-0x0000000000181000-memory.dmp

Download