agenttesla | 275559f7e9052564ecacedb07b93ea0e552fe3cf4d5b3bbf315e1494efd712e2

Analysis

max time kernel
87s
max time network
87s
platform
windows10_x64
resource
win10
submitted
31/08/2020, 06:00

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General

Target
jlZt0Dt5j3Vs8Zk.exe
Size 832KB
Sample200831-dpgvhsc5ze
SHA256 275559f7e9052564ecacedb07b93ea0e552fe3cf4d5b3bbf315e1494efd712e2
MD5 b8b01f6daa3ea76452ee1fd8d1d3338e
SHA1 33d942dbc95f852700add066c8fd2256d6cd614a
SHA512 944e92ae64585f64d47d4076d5075c1f773c5f03bc80eec702bff28288b063a85eeed28f36295e713dbbaa7fc1be1050cd27f853b8312e0a19a1a506349fc396
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer spyware trojan agenttesla

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
daddyhandsome1234

Signatures

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

AgentTesla Payload 3 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/2188-13-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral2/memory/2188-13-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral2/memory/2188-14-0x000000000046105E-mapping.dmp	agent_tesla

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 2460 set thread context of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80

Drops file in Windows directory 1 IoCs

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

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
1896	schtasks.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
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
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 = 7f71767f5b7fd601	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

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2460	jlZt0Dt5j3Vs8Zk.exe
2460	jlZt0Dt5j3Vs8Zk.exe
2460	jlZt0Dt5j3Vs8Zk.exe
2460	jlZt0Dt5j3Vs8Zk.exe
2460	jlZt0Dt5j3Vs8Zk.exe
2188	jlZt0Dt5j3Vs8Zk.exe
2188	jlZt0Dt5j3Vs8Zk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3816	svchost.exe
Token: SeCreatePagefilePrivilege	3816	svchost.exe
Token: SeDebugPrivilege	2460	jlZt0Dt5j3Vs8Zk.exe
Token: SeDebugPrivilege	2188	jlZt0Dt5j3Vs8Zk.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	jlZt0Dt5j3Vs8Zk.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1896	2460	jlZt0Dt5j3Vs8Zk.exe	76
PID 2460 wrote to memory of 1896	2460	jlZt0Dt5j3Vs8Zk.exe	76
PID 2460 wrote to memory of 1896	2460	jlZt0Dt5j3Vs8Zk.exe	76
PID 2460 wrote to memory of 2180	2460	jlZt0Dt5j3Vs8Zk.exe	78
PID 2460 wrote to memory of 2180	2460	jlZt0Dt5j3Vs8Zk.exe	78
PID 2460 wrote to memory of 2180	2460	jlZt0Dt5j3Vs8Zk.exe	78
PID 2460 wrote to memory of 2176	2460	jlZt0Dt5j3Vs8Zk.exe	79
PID 2460 wrote to memory of 2176	2460	jlZt0Dt5j3Vs8Zk.exe	79
PID 2460 wrote to memory of 2176	2460	jlZt0Dt5j3Vs8Zk.exe	79
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80
PID 2460 wrote to memory of 2188	2460	jlZt0Dt5j3Vs8Zk.exe	80

C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe
"C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XbxslXKQscslL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF737.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1896
- C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe
  "C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe"
  2⤵
  PID:2180
- C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe
  "C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe"
  2⤵
  PID:2176
- C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe
  "C:\Users\Admin\AppData\Local\Temp\jlZt0Dt5j3Vs8Zk.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2188

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:3816

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

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2188-22-0x0000000005D50000-0x0000000005D51000-memory.dmp

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memory/2188-21-0x00000000058A0000-0x00000000058A1000-memory.dmp

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memory/2188-16-0x0000000073870000-0x0000000073F5E000-memory.dmp

Download

memory/2188-13-0x0000000000400000-0x0000000000466000-memory.dmp

Download

memory/2460-5-0x0000000005520000-0x0000000005521000-memory.dmp

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memory/2460-10-0x0000000006340000-0x00000000063B1000-memory.dmp

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memory/2460-9-0x00000000062A0000-0x0000000006339000-memory.dmp

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memory/2460-8-0x0000000005450000-0x000000000545B000-memory.dmp

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memory/2460-7-0x00000000056F0000-0x00000000056F1000-memory.dmp

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memory/2460-6-0x0000000005410000-0x0000000005411000-memory.dmp

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memory/2460-0-0x0000000073870000-0x0000000073F5E000-memory.dmp

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memory/2460-4-0x0000000005A20000-0x0000000005A21000-memory.dmp

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memory/2460-3-0x0000000005480000-0x0000000005481000-memory.dmp

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memory/2460-1-0x0000000000B30000-0x0000000000B31000-memory.dmp

Download