agenttesla | ce76fc43c1ae2fc7d499a24d0d93b8ffae25e9d3ef6d6c8086e54ffd0d29ff31

Analysis

max time kernel
129s
max time network
129s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 08:04

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General

Target
2724e3847ab9d043159c984a612d4173.exe
Size 824KB
Sample210224-pppn12hbb2
SHA256 ce76fc43c1ae2fc7d499a24d0d93b8ffae25e9d3ef6d6c8086e54ffd0d29ff31
MD5 2724e3847ab9d043159c984a612d4173
SHA1 651035f5637123972d381b0833c325f88adb7972
SHA512 aea9a3c542b36c0ad1614eebe5a833a05689dad3e48791a0d3aa30d9a1d60833a53baa7c3ce9dfa4ecc4680688c1e51e8075f7060a2e9cadff967737c177fec0
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.homecares-tw.com
Port
587
Username
[email protected]
Password
IkxbPQj3

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.homecares-tw.com
Port
587
Username
[email protected]
Password
IkxbPQj3

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/4088-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/4088-15-0x000000000044CA4E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	2724e3847ab9d043159c984a612d4173.exe

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 3116 set thread context of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82

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
3688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3116	2724e3847ab9d043159c984a612d4173.exe
3116	2724e3847ab9d043159c984a612d4173.exe
3116	2724e3847ab9d043159c984a612d4173.exe
3116	2724e3847ab9d043159c984a612d4173.exe
3116	2724e3847ab9d043159c984a612d4173.exe
4088	2724e3847ab9d043159c984a612d4173.exe
4088	2724e3847ab9d043159c984a612d4173.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	2724e3847ab9d043159c984a612d4173.exe
Token: SeDebugPrivilege	4088	2724e3847ab9d043159c984a612d4173.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 3688	3116	2724e3847ab9d043159c984a612d4173.exe	78
PID 3116 wrote to memory of 3688	3116	2724e3847ab9d043159c984a612d4173.exe	78
PID 3116 wrote to memory of 3688	3116	2724e3847ab9d043159c984a612d4173.exe	78
PID 3116 wrote to memory of 2424	3116	2724e3847ab9d043159c984a612d4173.exe	80
PID 3116 wrote to memory of 2424	3116	2724e3847ab9d043159c984a612d4173.exe	80
PID 3116 wrote to memory of 2424	3116	2724e3847ab9d043159c984a612d4173.exe	80
PID 3116 wrote to memory of 2208	3116	2724e3847ab9d043159c984a612d4173.exe	81
PID 3116 wrote to memory of 2208	3116	2724e3847ab9d043159c984a612d4173.exe	81
PID 3116 wrote to memory of 2208	3116	2724e3847ab9d043159c984a612d4173.exe	81
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 3116 wrote to memory of 4088	3116	2724e3847ab9d043159c984a612d4173.exe	82
PID 4088 wrote to memory of 3788	4088	2724e3847ab9d043159c984a612d4173.exe	84
PID 4088 wrote to memory of 3788	4088	2724e3847ab9d043159c984a612d4173.exe	84
PID 4088 wrote to memory of 3788	4088	2724e3847ab9d043159c984a612d4173.exe	84

C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe
"C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kWPearWV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp494E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3688
- C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe
  "{path}"
  2⤵
  PID:2424
- C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe
  "{path}"
  2⤵
  PID:2208
- C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4088
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:3788

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/3116-11-0x0000000007A10000-0x0000000007AA6000-memory.dmp

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memory/3116-6-0x00000000055E0000-0x00000000055E1000-memory.dmp

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memory/3116-7-0x0000000005770000-0x0000000005771000-memory.dmp

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memory/3116-8-0x00000000055C0000-0x00000000055C1000-memory.dmp

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memory/3116-9-0x0000000005920000-0x000000000592B000-memory.dmp

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memory/3116-10-0x0000000007AB0000-0x0000000007AB1000-memory.dmp

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memory/3116-2-0x0000000073840000-0x0000000073F2E000-memory.dmp

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memory/3116-5-0x0000000005AE0000-0x0000000005AE1000-memory.dmp

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memory/3116-3-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

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memory/4088-14-0x0000000000400000-0x0000000000452000-memory.dmp

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memory/4088-16-0x0000000073840000-0x0000000073F2E000-memory.dmp

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memory/4088-21-0x0000000005150000-0x0000000005151000-memory.dmp

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memory/4088-22-0x00000000053D0000-0x00000000053D1000-memory.dmp

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memory/4088-23-0x0000000005E90000-0x0000000005E91000-memory.dmp

Download

memory/4088-27-0x0000000005151000-0x0000000005152000-memory.dmp

Download