agenttesla | 5ab03258f60ece5b9b7d1681d56de20af50eb9783a3f1b84a5f683f14c7a6471

General

Target

KLM093778373.exe
Size

170KB
MD5

794221c770d3a022d565153190b5fe8b
SHA1

1bb7a79856b614c6925e2e99a4005c55f471fc8f
SHA256

5ab03258f60ece5b9b7d1681d56de20af50eb9783a3f1b84a5f683f14c7a6471
SHA512

c41ca1008f39edd0b16e89cb1cbbcb985497c0d2753458be674840efb3b83aaf04f907d15ccbf1872238c1616ae8ff048bc0fc247f26370e978908550f78e9a9
SSDEEP

3072:i54NFWQvWOWyM07kkIIZB7Joi/y7oQPypIMT88DCjKeDwnehokG1Lq2Jkp4H2xVX:FNFWQMMtbZIicypIMT88DCjKeDwnehom

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6248079103:AAHguAsTEqW6RfyeC5Wjh_pmDy9cvQi28aU/

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KLM093778373.exe	Powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KLM093778373.exe	Powershell.exe

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

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KLM093778373.exe
Key opened	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KLM093778373.exe
Key opened	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KLM093778373.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
33	api.ipify.org
32	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 392 set thread context of 3888	392	KLM093778373.exe	98

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
832	Powershell.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
392	KLM093778373.exe
832	Powershell.exe
392	KLM093778373.exe
392	KLM093778373.exe
3888	KLM093778373.exe
3888	KLM093778373.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	KLM093778373.exe
Token: SeDebugPrivilege	832	Powershell.exe
Token: SeDebugPrivilege	3888	KLM093778373.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3888	KLM093778373.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 832	392	KLM093778373.exe	95
PID 392 wrote to memory of 832	392	KLM093778373.exe	95
PID 392 wrote to memory of 832	392	KLM093778373.exe	95
PID 392 wrote to memory of 4292	392	KLM093778373.exe	97
PID 392 wrote to memory of 4292	392	KLM093778373.exe	97
PID 392 wrote to memory of 4292	392	KLM093778373.exe	97
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98
PID 392 wrote to memory of 3888	392	KLM093778373.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KLM093778373.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KLM093778373.exe

C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe
"C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KLM093778373.exe' -Force
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:832
- C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe
  "C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe"
  2⤵
  PID:4292
- C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe
  "C:\Users\Admin\AppData\Local\Temp\KLM093778373.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\KLM093778373.exe.log

Filesize
1KB

MD5
c963d2a62d71acea1279f33286e3f38e

SHA1
1862de543ef7ce01494ceba01306aba99cba0b04

SHA256
420e4071f06a86ae97fcfbb2b81bc4f4bac330c17c10bcb91e24c4099a26f0a6

SHA512
ba0d0c25f2ebb5fad4739c9100af0be88e6fb809fab301518705ba4dce4455d7522a411ad88419b9bae32bf95d3c3396fcac27ce9feda51787aeb88da4f79e52

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1riimkni.12l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/392-1-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/392-2-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

Filesize
64KB

Download
memory/392-3-0x0000000005970000-0x00000000059FC000-memory.dmp

Filesize
560KB

Download
memory/392-4-0x0000000005FD0000-0x0000000006574000-memory.dmp

Filesize
5.6MB

Download
memory/392-5-0x0000000005B40000-0x0000000005BDC000-memory.dmp

Filesize
624KB

Download
memory/392-6-0x0000000005BE0000-0x0000000005C72000-memory.dmp

Filesize
584KB

Download
memory/392-7-0x0000000005DF0000-0x0000000005E56000-memory.dmp

Filesize
408KB

Download
memory/392-28-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/392-0-0x0000000000470000-0x00000000004A0000-memory.dmp

Filesize
192KB

Download
memory/392-11-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/832-24-0x0000000005EA0000-0x00000000061F4000-memory.dmp

Filesize
3.3MB

Download
memory/832-40-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/832-14-0x0000000005550000-0x00000000055B6000-memory.dmp

Filesize
408KB

Download
memory/832-12-0x0000000005790000-0x0000000005DB8000-memory.dmp

Filesize
6.2MB

Download
memory/832-10-0x0000000005150000-0x0000000005160000-memory.dmp

Filesize
64KB

Download
memory/832-13-0x00000000054B0000-0x00000000054D2000-memory.dmp

Filesize
136KB

Download
memory/832-9-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/832-36-0x00000000069D0000-0x00000000069F2000-memory.dmp

Filesize
136KB

Download
memory/832-8-0x0000000002B80000-0x0000000002BB6000-memory.dmp

Filesize
216KB

Download
memory/832-31-0x00000000064E0000-0x000000000652C000-memory.dmp

Filesize
304KB

Download
memory/832-30-0x0000000006490000-0x00000000064AE000-memory.dmp

Filesize
120KB

Download
memory/832-35-0x0000000006980000-0x000000000699A000-memory.dmp

Filesize
104KB

Download
memory/832-33-0x0000000005150000-0x0000000005160000-memory.dmp

Filesize
64KB

Download
memory/832-34-0x0000000007660000-0x00000000076F6000-memory.dmp

Filesize
600KB

Download
memory/3888-32-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/3888-29-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/3888-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3888-41-0x0000000006930000-0x0000000006980000-memory.dmp

Filesize
320KB

Download
memory/3888-42-0x0000000006B50000-0x0000000006D12000-memory.dmp

Filesize
1.8MB

Download
memory/3888-52-0x0000000006B10000-0x0000000006B1A000-memory.dmp

Filesize
40KB

Download
memory/3888-53-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/3888-54-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download

Analysis

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