agenttesla | 3826c4146b9063d19ae353d71bcf2642738db329e3acb5face4055ad1799e063

General

Target

156cdd1659079d1494e3b1e228835fbb.exe
Size

1.3MB
MD5

156cdd1659079d1494e3b1e228835fbb
SHA1

7ff00682e106dfd3aec318c4eb07bf53944e1920
SHA256

3826c4146b9063d19ae353d71bcf2642738db329e3acb5face4055ad1799e063
SHA512

122f1182c4947a2f1711cbab4a27fba62e862fe27f471cfe698436a4b984420164a44974417bb7e7248c940771df214cd932fdbab97107f28ff435d7513e5b03
SSDEEP

24576:i95ooKw0UYoVJ5jbUVlAUGwNbwPWnuCXnw8I6TvvtBJ+d9pu80roJvKeSWta3t4X:4WoKw0UYiJ5jbo5GqbwPWnuCXnbRTHt2

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.alfafoodservices.com
Port:
587
Username:
[email protected]
Password:
gwagon2014

Signatures

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

AgentTesla payload 4 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322d-4.dat	family_agenttesla
behavioral2/files/0x000700000002322d-3.dat	family_agenttesla
behavioral2/memory/1440-5-0x0000000000260000-0x00000000002B0000-memory.dmp	family_agenttesla
behavioral2/memory/1440-26-0x0000000004DF0000-0x0000000004E00000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
1440	test.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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1116-0-0x0000000000400000-0x00000000006A4000-memory.dmp	upx
behavioral2/memory/1116-23-0x0000000000400000-0x00000000006A4000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1440	test.exe
1440	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1440	test.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1440	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 3948	1116	156cdd1659079d1494e3b1e228835fbb.exe	90
PID 1116 wrote to memory of 3948	1116	156cdd1659079d1494e3b1e228835fbb.exe	90
PID 1116 wrote to memory of 3948	1116	156cdd1659079d1494e3b1e228835fbb.exe	90
PID 3948 wrote to memory of 1440	3948	cmd.exe	91
PID 3948 wrote to memory of 1440	3948	cmd.exe	91
PID 3948 wrote to memory of 1440	3948	cmd.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\156cdd1659079d1494e3b1e228835fbb.exe
"C:\Users\Admin\AppData\Local\Temp\156cdd1659079d1494e3b1e228835fbb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:1440

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\Temp\test.exe

Filesize
277KB

MD5
8fc590658952f7a941ad26390f786e54

SHA1
ce0d2cbe9fb4c52b851e8ee61536794c32ce1add

SHA256
6b01031c065d0091d4e9d917683b5b2c283ecd85a49e6f1690bb956601cd19f1

SHA512
9dae67f5c81e7af5839161510467f79bfe0a2ff9a24dafc35aaff72ba82bb1545e74728efd12a3ffed1bf6648c6c49a9f39b979b71a06ca022a9e12ef5610656

Download Submit
C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
217KB

MD5
3a9117162e2fd1af5d828e44983d8f04

SHA1
e713c2e2cf3a58040800533bff64f615a702aa44

SHA256
4a1c7f6b1d16b5421cc5933c2eff716ab607a522c3f9ccb63e75c53fa67e0a90

SHA512
f8003cc584da5242fcbf963ab3b9efc7f1fc2fb56b81cfde1b02f566a5c450a1bf88881f87be828bc53ba8fa7b12dc5db5fd33731ba31ea0639708e18d17cd5e

Download Submit
memory/1116-0-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/1116-23-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/1440-10-0x0000000004FE0000-0x000000000507C000-memory.dmp

Filesize
624KB

Download
memory/1440-13-0x0000000005EE0000-0x0000000005F30000-memory.dmp

Filesize
320KB

Download
memory/1440-9-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/1440-8-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1440-6-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/1440-11-0x0000000004F00000-0x0000000004F18000-memory.dmp

Filesize
96KB

Download
memory/1440-12-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/1440-7-0x00000000054F0000-0x0000000005A94000-memory.dmp

Filesize
5.6MB

Download
memory/1440-19-0x0000000006520000-0x000000000652A000-memory.dmp

Filesize
40KB

Download
memory/1440-20-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1440-5-0x0000000000260000-0x00000000002B0000-memory.dmp

Filesize
320KB

Download
memory/1440-25-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/1440-26-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1440-27-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download

Analysis

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