agenttesla | b821cdf6b8cdb33d9f033ef0c5d444aedb5767ddf8c1faa87c79d7e7193e6d32

Analysis

max time kernel
144s
max time network
111s
platform
windows10_x64
resource
win10v20201028
submitted
31/03/2021, 18:21

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General

Target
f4dcb6c507e845e16a5ee461792def83.exe
Size 463KB
Sample210331-9j1x9e82wn
SHA256 b821cdf6b8cdb33d9f033ef0c5d444aedb5767ddf8c1faa87c79d7e7193e6d32
MD5 f4dcb6c507e845e16a5ee461792def83
SHA1 8a2b1d71feaf9dbaca3fd4a868f6e71d498707ae
SHA512 d452c219a549de8418d9b5eedd2b27ed592f544c8e72d49275d320fb632cc5d3c381ad230489927ac9e1cb0e8362f0f43c8d2802ec42da5e3bc0c3c22118f11c
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
browse9ja

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/1544-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1544-16-0x00000000004375DE-mapping.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3496 set thread context of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80

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
3124	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1544	f4dcb6c507e845e16a5ee461792def83.exe
1544	f4dcb6c507e845e16a5ee461792def83.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1544	f4dcb6c507e845e16a5ee461792def83.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 3124	3496	f4dcb6c507e845e16a5ee461792def83.exe	78
PID 3496 wrote to memory of 3124	3496	f4dcb6c507e845e16a5ee461792def83.exe	78
PID 3496 wrote to memory of 3124	3496	f4dcb6c507e845e16a5ee461792def83.exe	78
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80
PID 3496 wrote to memory of 1544	3496	f4dcb6c507e845e16a5ee461792def83.exe	80

C:\Users\Admin\AppData\Local\Temp\f4dcb6c507e845e16a5ee461792def83.exe
"C:\Users\Admin\AppData\Local\Temp\f4dcb6c507e845e16a5ee461792def83.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qzKYxEDZppz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC4C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3124
- C:\Users\Admin\AppData\Local\Temp\f4dcb6c507e845e16a5ee461792def83.exe
  "C:\Users\Admin\AppData\Local\Temp\f4dcb6c507e845e16a5ee461792def83.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1544

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

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1544-25-0x0000000006580000-0x0000000006581000-memory.dmp

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memory/1544-24-0x00000000059F0000-0x00000000059F1000-memory.dmp

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memory/1544-22-0x0000000005A20000-0x0000000005A21000-memory.dmp

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memory/1544-18-0x00000000733A0000-0x0000000073A8E000-memory.dmp

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memory/1544-15-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/3496-7-0x00000000058C0000-0x00000000058C1000-memory.dmp

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memory/3496-12-0x0000000006420000-0x0000000006484000-memory.dmp

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memory/3496-11-0x0000000005830000-0x0000000005839000-memory.dmp

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memory/3496-10-0x0000000005A80000-0x0000000005A81000-memory.dmp

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memory/3496-9-0x0000000005A20000-0x0000000005A21000-memory.dmp

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memory/3496-8-0x0000000005760000-0x0000000005761000-memory.dmp

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memory/3496-2-0x00000000733A0000-0x0000000073A8E000-memory.dmp

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memory/3496-6-0x0000000005D20000-0x0000000005D21000-memory.dmp

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memory/3496-5-0x0000000005780000-0x0000000005781000-memory.dmp

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memory/3496-3-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

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