agenttesla | f5c1e959753342533cbd0ca3dea69f4a7212070a314b75db381add8a0f75623f

General

Target

Quotation 911799 - EM092722.exe
Size

290KB
MD5

b1897de899f87437bf884bff539716b0
SHA1

921e034478fe2427d6b4175b9639819e5eec2987
SHA256

e1b82a8eb5ea3bb868a923672c161662e56ba55501e16e745bf29352ebe996de
SHA512

2613fa1eb6888b377488c6642018e390d5fb701ed28278cf57c5c67e96c72f90423ce3468f97268586240215a82a546688bcbc5141c2cf9f4814c40824be62ba
SSDEEP

6144:ZYa6p5EkQ3+/pTxnJ0KMyKioZUTDRzFJ9X/pBz1prQg1BEz+344jUxBHRmP5B:ZYHi+/pTxCKMyhoZsRzFJ9p11avungzs

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4564	Quotation 911799 - EM092722.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
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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation 911799 - EM092722.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation 911799 - EM092722.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation 911799 - EM092722.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pueasoxhmh = "C:\\Users\\Admin\\AppData\\Roaming\\mvfbktpei\\wcluafktyirmvr.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Quotation 911799 - EM092722.exe\""	Quotation 911799 - EM092722.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AsKlDC = "C:\\Users\\Admin\\AppData\\Roaming\\AsKlDC\\AsKlDC.exe"	Quotation 911799 - EM092722.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
21	api.ipify.org
22	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 1952	4564	Quotation 911799 - EM092722.exe	86

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1952	Quotation 911799 - EM092722.exe
1952	Quotation 911799 - EM092722.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4564	Quotation 911799 - EM092722.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	Quotation 911799 - EM092722.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 1952	4564	Quotation 911799 - EM092722.exe	86
PID 4564 wrote to memory of 1952	4564	Quotation 911799 - EM092722.exe	86
PID 4564 wrote to memory of 1952	4564	Quotation 911799 - EM092722.exe	86
PID 4564 wrote to memory of 1952	4564	Quotation 911799 - EM092722.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation 911799 - EM092722.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation 911799 - EM092722.exe

C:\Users\Admin\AppData\Local\Temp\Quotation 911799 - EM092722.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation 911799 - EM092722.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Users\Admin\AppData\Local\Temp\Quotation 911799 - EM092722.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation 911799 - EM092722.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

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\Temp\nsf6DCF.tmp\gmdkcknz.dll

Filesize
53KB

MD5
ab51a0c21802a21749dfb670518e0f5a

SHA1
e0a4d51a92088183d756423bedca562c1ab532d0

SHA256
a971a61af90faee262b9e36370cf66602af3ac8b832371d3b16a8a3240ec5333

SHA512
4213cd5db98579b1f53b061f99a871d08af075fa866bfc7976e0e79c41e354a31510399f6847b6e1e40b425e34939dc9aa1478bd1b9fb6d5055e8ae89745cd72

Download Submit
memory/1952-147-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/1952-153-0x0000000005D60000-0x0000000005F22000-memory.dmp

Filesize
1.8MB

Download
memory/1952-149-0x00000000049E0000-0x0000000004F84000-memory.dmp

Filesize
5.6MB

Download
memory/1952-150-0x0000000004FE0000-0x0000000005046000-memory.dmp

Filesize
408KB

Download
memory/1952-144-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1952-148-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/1952-146-0x00000000740F0000-0x00000000748A0000-memory.dmp

Filesize
7.7MB

Download
memory/1952-157-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/1952-158-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/1952-142-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1952-143-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1952-151-0x00000000740F0000-0x00000000748A0000-memory.dmp

Filesize
7.7MB

Download
memory/1952-152-0x0000000005D10000-0x0000000005D60000-memory.dmp

Filesize
320KB

Download
memory/1952-141-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1952-154-0x0000000005F40000-0x0000000005FD2000-memory.dmp

Filesize
584KB

Download
memory/1952-155-0x0000000006060000-0x000000000606A000-memory.dmp

Filesize
40KB

Download
memory/4564-139-0x0000000074A30000-0x0000000074A42000-memory.dmp

Filesize
72KB

Download
memory/4564-145-0x0000000074A30000-0x0000000074A42000-memory.dmp

Filesize
72KB

Download

Analysis

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