agenttesla | 031527224e74b82bf16e639c666134674ecc8a6e648fed2f68255617bd6a3b18 | Triage

Analysis

max time kernel
109s
max time network
113s
platform
windows10_x64
resource
win10v20210408
submitted
30-07-2021 15:25

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General

Target

87597.exe
Size

704KB
MD5

7e19235ca4a6192bdace52baa0a40d26
SHA1

1ac8aa96052b0da4f7d1072ca8fee01ade2e9f71
SHA256

ed762437d06ffae4d27baec39379997d8acf7ae6e6e758611793f3fb2fafcee1
SHA512

a67be81bf2487babe021184427d47004791fca072b93ea61efa40d81680132ffcbd96cd78a00a8f316be50d5308ce1d5f2b29dc19be32e91a74a65a63c7705a0

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.badonfashoin.com/
Port:
21
Username:
[email protected]
Password:
kKsIA9XNV2zG

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
behavioral6/memory/3892-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral6/memory/3892-128-0x00000000004374AE-mapping.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\hZpzJs = "C:\\Users\\Admin\\AppData\\Roaming\\hZpzJs\\hZpzJs.exe"	87597.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4016 set thread context of 3892	4016	87597.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.

Scheduled Task

pid	Process
3364	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4016	87597.exe
3892	87597.exe
3892	87597.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3892	87597.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	87597.exe
Token: SeDebugPrivilege	3892	87597.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 3364	4016	87597.exe	78
PID 4016 wrote to memory of 3364	4016	87597.exe	78
PID 4016 wrote to memory of 3364	4016	87597.exe	78
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80
PID 4016 wrote to memory of 3892	4016	87597.exe	80

C:\Users\Admin\AppData\Local\Temp\87597.exe
"C:\Users\Admin\AppData\Local\Temp\87597.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\emoGDf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp351A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3364
- C:\Users\Admin\AppData\Local\Temp\87597.exe
  "C:\Users\Admin\AppData\Local\Temp\87597.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  PID:3892

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Modify Registry

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3892-136-0x0000000005D30000-0x0000000005D31000-memory.dmp

Filesize
4KB

Download
memory/3892-135-0x0000000005130000-0x0000000005131000-memory.dmp

Filesize
4KB

Download
memory/3892-134-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/3892-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4016-119-0x00000000050A0000-0x000000000559E000-memory.dmp

Filesize
5.0MB

Download
memory/4016-124-0x0000000001000000-0x000000000103C000-memory.dmp

Filesize
240KB

Download
memory/4016-123-0x0000000000F80000-0x0000000001000000-memory.dmp

Filesize
512KB

Download
memory/4016-122-0x00000000054A0000-0x00000000054BB000-memory.dmp

Filesize
108KB

Download
memory/4016-121-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/4016-120-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/4016-114-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/4016-118-0x0000000005140000-0x0000000005141000-memory.dmp

Filesize
4KB

Download
memory/4016-117-0x00000000055A0000-0x00000000055A1000-memory.dmp

Filesize
4KB

Download
memory/4016-116-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download