agenttesla | e5950c07075986a0e853f4e919e1c39f0e64a878ff97143a1d49ea5a4eb186df

General

Target

05731499.exe
Size

689KB
MD5

c2d972a2b74ef5bd3db1f8a7c939e088
SHA1

0ea2ccea3e45fb9581d08caaf1cb00d273828020
SHA256

e5950c07075986a0e853f4e919e1c39f0e64a878ff97143a1d49ea5a4eb186df
SHA512

1724f542be20ba0f3014fa2a89a67f2439dff4ef98f7f2af5abe0fcd8f6e3f2742630ef1cfaf23e1e557a8a9f3934ae8d9ebf42619da1ddfaedd24dc554709ae
SSDEEP

12288:dsIduh2iNfmFx2iqNhujGjUWbCIc4gB2t2giECz67KtAuFeBZvp+VW77BjnN6xW:dsIduh1lmFxURblc4gBk2gcz67XkeTpp

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
!Gphfth8
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	05731499.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	05731499.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	05731499.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MmRKwR = "C:\\Users\\Admin\\AppData\\Roaming\\MmRKwR\\MmRKwR.exe"	05731499.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5000 set thread context of 4648	5000	05731499.exe	92

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5000	05731499.exe
5000	05731499.exe
4648	05731499.exe
4648	05731499.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5000	05731499.exe
Token: SeDebugPrivilege	4648	05731499.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 4644	5000	05731499.exe	91
PID 5000 wrote to memory of 4644	5000	05731499.exe	91
PID 5000 wrote to memory of 4644	5000	05731499.exe	91
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92
PID 5000 wrote to memory of 4648	5000	05731499.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	05731499.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	05731499.exe

C:\Users\Admin\AppData\Local\Temp\05731499.exe
"C:\Users\Admin\AppData\Local\Temp\05731499.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Users\Admin\AppData\Local\Temp\05731499.exe
  "C:\Users\Admin\AppData\Local\Temp\05731499.exe"
  2⤵
  PID:4644
- C:\Users\Admin\AppData\Local\Temp\05731499.exe
  "C:\Users\Admin\AppData\Local\Temp\05731499.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:4648

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

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\05731499.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4648-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4648-148-0x0000000005030000-0x0000000005040000-memory.dmp

Filesize
64KB

Download
memory/4648-147-0x0000000006180000-0x0000000006342000-memory.dmp

Filesize
1.8MB

Download
memory/4648-146-0x0000000005F60000-0x0000000005FB0000-memory.dmp

Filesize
320KB

Download
memory/4648-144-0x0000000005030000-0x0000000005040000-memory.dmp

Filesize
64KB

Download
memory/4648-143-0x00000000050B0000-0x0000000005116000-memory.dmp

Filesize
408KB

Download
memory/5000-136-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download
memory/5000-139-0x0000000006B30000-0x0000000006BCC000-memory.dmp

Filesize
624KB

Download
memory/5000-138-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/5000-137-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/5000-133-0x0000000000FD0000-0x0000000001082000-memory.dmp

Filesize
712KB

Download
memory/5000-135-0x0000000005A80000-0x0000000005B12000-memory.dmp

Filesize
584KB

Download
memory/5000-134-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download

Analysis

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